Re: Why did Quora choose Python for its development?
From: Ulrich Eckhardt ulrich.eckha...@dominolaser.com Ahem, is this Java the language that a certain, well-known service provider is getting screwed over hard currently, because they forgot to read the fineprint in the declaration of freedom? And this Objective C, isn't this the language that GCC had support for since before it properly supported C++, and that on a multitude of targets? Someone also said that C# can be used under Mono and even though this is true, C# still remains a proprietary language that can be totally changed if MS wants that, as well as Objective C can be changed if Apple wants that. So what matters is if the most important developers for a specific language/platform are releasing the code as open source or they keep it proprietary and I don't see a big number of programmers developing code in C# and Objective C. About Java... you may be right. :-) Octavian -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
From: Daniel Kluev dan.kl...@gmail.com On Mon, May 23, 2011 at 10:17 PM, Octavian Rasnita orasn...@gmail.com wrote: From: Daniel Kluev dan.kl...@gmail.com Aha, so with other words that ORM doesn't have that feature. DBIX::Class also use the DateTime module, but it can use it directly, without needing to write more code for that, and it can also return localized dates. Once again. ORMs return _python builtin type_. Localization is not their responsibility, and plugging it there is code bloat, rather than feature. Sure you may ask ORM to handle JSONRPC requests on its own, but ORM responsibility is to map RDBMS features to language objects. Who said that? The ORM responsability is to map RDBMS to the objects you need, not to the language objects. If the ORM can do that directly by just adding a configuration instead of needing to manually use of other modules, why is this bloat? You add that configuration only if you need it, not always, and it is much more simple. All good python packages limit their functionality to specific field, so you could choose one you prefer for each different task independently. All the Perl modules do the same, but some of the Perl modules accept plugins that make easier the collaboration of different modules which are needed often, and the need of localizing the date is a feature used often. without needing to load the DateTime module manually and to initialize the DateTime object manually... This is basically stating that you didn't read the code I posted. Where did you ever find initialize the DateTime object manually? Sorry, but its pointless to discuss anything if you don't want to even read properly examples you receive. You told that you need to use another module for localizing the date because the ORM returns just a language date object that doesn't do that. Octavian -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
From: Daniel Kluev dan.kl...@gmail.com
Moreover, you are comparing apples to oranges here, and then
complaining that apples somehow turned out to be not oranges.
If we take python way of defining dicts and check it in perl, we find
that it is not supported, so obviously perl is non-intuitive and does
not support clear and easy way of defining hashes from list of
key-value pairs:
@l = ([1, 2], [3, 4],);
%d = @l;
for $k ( keys %d ) { print $k\n; }
which outputs single ARRAY(0x804e158) instead of proper 1, 3, as it
does in python:
dict([[1,2], [3,4]]).keys()
[1, 3]
This is yet another example that you are just trolling here, making
silly and unbacked claims, and ignoring any valid arguments you
receive.
You are showing a code but tell another thing. If it would be as you said, I
should have said that if in Perl a dictionary is made from a list using
%d = @l;
then in Python it should be
l = d
because it would be more nice. But I didn't say that. I said that it would
be nice to be able to use something like
d = dict(l)
using the Python dict statement for creating dicts.
And OK, Python needs another pair of brackets for doing that and this is no
problem, but the result is that the Python's syntax is not as shorter and
nice as Perl's, for the same thing.
This is what that I said.
And you are telling that in Perl should be used an even more complicated and
ugly syntax just for beeing the same as in Python just for showing that I am
wrong, but I was comparing just the shortness and cleraness of the code.
So, again, in Perl is just:
%d = @l;
Please tell me if Python has a syntax which is more clear than this for
doing this thing.
It doesn't matter if it is different or if it follows another syntax.
And again, I am not trolling anything. I am just defending a language which
has a clearer syntax for doing some things, and a shorter code for other
things, and which uses less braces and brackets than Python for other
things, and which has a single-recommended way for doing some things, even
though other list members were trolling about Perl, but nobody said
something against.
Octavian
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Re: Why did Quora choose Python for its development?
Beliavsky, 20.05.2011 18:39: I thought this essay on why one startup chose Python was interesting. Since everyone seems to be hot flaming at their pet languages in this thread, let me quickly say this: Thanks for sharing the link. Stefan -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
From: Stefan Behnel stefan...@behnel.de Beliavsky, 20.05.2011 18:39: I thought this essay on why one startup chose Python was interesting. Since everyone seems to be hot flaming at their pet languages in this thread, let me quickly say this: Thanks for sharing the link. Maybe I have missed a message, but if I didn't, please provide that link. I am always interested to find the best solutions. Thanks. Octavian -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
On Tue, May 24, 2011 at 6:10 PM, Octavian Rasnita orasn...@gmail.com wrote: From: Stefan Behnel stefan...@behnel.de Beliavsky, 20.05.2011 18:39: I thought this essay on why one startup chose Python was interesting. Since everyone seems to be hot flaming at their pet languages in this thread, let me quickly say this: Thanks for sharing the link. Maybe I have missed a message, but if I didn't, please provide that link. I am always interested to find the best solutions. At the beginning of the thread, three days and forty-odd messages ago, this was posted: http://www.quora.com/Why-did-Quora-choose-Python-for-its-development It's the reason for the thread title, regardless of the current thread content :) Chris Angelico -- http://mail.python.org/mailman/listinfo/python-list
NEED HELP- read file contents, while loop to accept user input, and enter to exit
dear mentor,
I need help with my code:
1) my program won't display file contents upon opening
2) my program is not writing to file
3) my program is not closing when user presses enter- gow do I do this with
a while loop?
please see my attempt below and help:
#1) open file and display current file contents:
f = open ('c:/testing.txt'', 'r')
f.readlines()
#2) and 3) use while loop to write user input to file, save to file, close
when press enter:
while True:
s = input ('enter name: ').strip()
f = open ('c:/testing.txt', 'a')
if f.writable():
f.write(s)
break
else:
f = open ('c:/testing.txt', 'r')
f.readlines()
for line in f:
print (line)
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Re: NEED HELP- read file contents, while loop to accept user input, and enter to exit
On 24/05/2011 09:31, Cathy James wrote:
dear mentor,
I need help with my code:
1) my program won't display file contents upon opening
#1) open file and display current file contents:
f = open ('c:/testing.txt'', 'r')
f.readlines()
If you're running this in an interactive interpreter, I would
expect it to show a list of lines (assuming c:/testing.txt has
something in it...). If you're running it as a program, though,
it won't show anything: you need to actually output the result
of the expression f.readlines (). It only happens at the
interpreter as a development convenience:
f = open (c:/testing.txt, r)
print f.readlines ()
# or print (f.readlines ()) if you're in Python 3
TJG
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Re: NEED HELP- read file contents, while loop to accept user input, and enter to exit
On Tue, May 24, 2011 at 6:31 PM, Cathy James nambo...@gmail.com wrote:
s = input ('enter name: ').strip()
Are you using Python 2 or Python 3? If it's Python 2, this should be
raw_input().
f = open ('c:/testing.txt', 'a')
...
f = open ('c:/testing.txt', 'r')
You may be having trouble here as a result of not closing the file and
then trying to reopen it.
Also, at some point you have to check if 's' (the user's inputted
string) is empty. You can then leave the loop using the 'break'
statement.
Hope that helps! Best of luck with your homework.
Chris Angelico
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Re: I installed Python 3 on Fedora 14 By Downloading python3.2 bziped source tarball and install it according to the README, Now How shall I uninstalled python 3.2?
Varuna Seneviratna wrote: Now How shall I uninstalled python 3.2? Now, how shall I remove Python 3.2 ? ... very carefully. It might be nice if there were a label in the Makefile so this would work: sudo make removeall ... but alas,why do you want to un-install Python3.2 ? -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
On Tue, May 24, 2011 at 5:00 PM, Octavian Rasnita orasn...@gmail.com wrote: And you are telling that in Perl should be used an even more complicated and ugly syntax just for beeing the same as in Python just for showing that I am wrong, but I was comparing just the shortness and cleraness of the code. So, again, in Perl is just: %d = @l; Once again. Suppose we have array of key-value pairs (two-dimensional array), `l`. In python, converting it to dict is as simple as d = dict(l). In perl, %d = @l; produces meaningless value. Following your logic, this means that perl has ugly syntax. -- With best regards, Daniel Kluev -- http://mail.python.org/mailman/listinfo/python-list
Re: NEED HELP- read file contents, while loop to accept user input, and enter to exit
On Tue, May 24, 2011 at 1:31 AM, Cathy James nambo...@gmail.com wrote:
dear mentor,
I need help with my code:
snip
In addition to what others have already said...
please see my attempt below and help:
#1) open file and display current file contents:
f = open ('c:/testing.txt'', 'r')
f.readlines()
#2) and 3) use while loop to write user input to file, save to file, close
when press enter:
while True:
s = input ('enter name: ').strip()
f = open ('c:/testing.txt', 'a')
if f.writable():
Since you *just* opened the file in append mode, this condition will
*always* be true (append mode implies writability), so your `else`
clause will *never* be executed.
f.write(s)
break
else:
f = open ('c:/testing.txt', 'r')
f.readlines()
for line in f:
print (line)
Similar beginner questions would be best directed to Python's Tutor
mailinglist: http://mail.python.org/mailman/listinfo/tutor
Cheers,
Chris
--
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Re: [Savoynet] More 'vast heavin'
On Tue, May 24, 2011 at 7:03 PM, Larry Simons la...@threelittlemaids.co.uk wrote: On Tue 24/05/2011 04:11, Libby Moyer wrote: And the rhymes in Mikado! Are you referring to ablutioner, diminutioner and “you shun her” all rhymed with executioner? Can't deny that they're grin-worthy! (Or groan-worthy, I always get those two mixed up.) ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: I installed Python 3 on Fedora 14 By Downloading python3.2 bziped source tarball and install it according to the README, Now How shall I uninstalled python 3.2?
Varuna Seneviratna wrote: Now How shall I uninstalled python 3.2? What --prefix did you use? default? -- http://mail.python.org/mailman/listinfo/python-list
Re: NEED HELP- read file contents, while loop to accept user input, and enter to exit
Cathy James wrote:
f = open ('c:/testing.txt'', 'r')
replace the double quote by a single quote.
JM
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Re: Why did Quora choose Python for its development?
On Tue, 24 May 2011 09:00:14 +0300 Octavian Rasnita orasn...@gmail.com wrote: So, again, in Perl is just: %d = @l; Please tell me if Python has a syntax which is more clear than this for doing this thing. How is that clear? Shorter != clearer. A Python programmer looking at that sees line noise. A Perl programmer looking at d = dict ([a]) (or even d = dict(a,)) sees something that has something to do with creating a dictionary. At least he would know in which section of the manual to look for more information. And again, I am not trolling anything. I am just defending a language which has a clearer syntax for doing some things, and a shorter code for other Are Perl programmers aware of some imminent worldwide shortage of electrons that Python programmers are not? Why is there this obsession with shortness? -- D'Arcy J.M. Cain da...@druid.net | Democracy is three wolves http://www.druid.net/darcy/| and a sheep voting on +1 416 425 1212 (DoD#0082)(eNTP) | what's for dinner. -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
On Tue, 24 May 2011 00:17:55 -0500 John Bokma j...@castleamber.com wrote: $d = @a; That will give you the number of elements in @a. What you (probably) mean is %hash = @array; If I was even considering using Perl, this one exchange would send me screaming in the opposite direction. -- D'Arcy J.M. Cain da...@druid.net | Democracy is three wolves http://www.druid.net/darcy/| and a sheep voting on +1 416 425 1212 (DoD#0082)(eNTP) | what's for dinner. -- http://mail.python.org/mailman/listinfo/python-list
File access denied after subprocess completion on Windows platform
Hello, I have a program that uses pyside for an QT interface and a thread that downloads a lot of files. The thread is created with QThread object. But my problem I don't think it's QT related. The thread retrieves with pycurl a file that contains a list of files and start to downloads them. The downloading is done as following: - instantiate a Curl object - open the file on local filesystem for write in binary mode (in a try block), with the name suffixed with .part. - pass the description to the curl object for save. - curl retrieve and save it. It has also a callback function that updates the interface, sending a QT signal to the interface. (1) - use os.rename to rename the file with .part sufix to the final file. On my interface I have 3 buttons. One of the buttons runs an .exe file. One button closes the interface and one is deactivated. On the button that runs the exe I have a callback function that uses subprocess.Popen (for not waiting) for running a program (.exe) and returns. For now I configured to run calc.exe. The callback is not defined inside the downloader thread. It's defined globally (nor in QMainWindow object). The problem appears when I close the called program (in our case calc.exe). The (1) part (the call of os.rename) raise an exception: type 'exceptions.WindowsError' (32, 'The process cannot access the file because it is being used by another process') [Error 32] The process cannot access the file because it is being used by another process Question is why? And how to avoid this issue? The same program on Linux works very fine (that's because Linux doesn't has this violation access)! If I remove (1) part the program works fine. Somehow after closing the spawned process (calc.exe - you see, it has nothing to do with a open file somewhere else) the thread losses the acces to the current opened file by itself. -- Claudiu Nicolaie CISMARU GNU GPG Key: http://claudiu.targujiu.net/key.gpg T: +40 755 135455 E: clau...@virtuamagic.com, claudiu.cism...@gmail.com signature.asc Description: This is a digitally signed message part. -- http://mail.python.org/mailman/listinfo/python-list
Re: how to get PID from subprocess library
TheSaint nob...@nowhere.net.no writes:
self.handle= \
xmlrpclib.ServerProxy('http://localhost:%s/rpc' %int(self.numport))
Couldn't you just try to call something via this handle, like
self.handle.aria2.getVersion()? If there's an error, then start aria2
as a daemon and try again.
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Python 3.2 Idle doesn't start. No error message.
Hello all. I have Python 2.71 installed on my Windows 7 laptop and it runs fine. I was having a problem with Python 3.2, 32bit, not starting with an error message saying this application has quit abnormally. That was fixed when I took the PYTHONPATH statement out of my environment variables. However, now when I try to start Idle, I can see some hard drive activity, but Idle for Python 3.2 does not start; nothing happens. Any clues as to the problem here? -- http://mail.python.org/mailman/listinfo/python-list
Re: File access denied after subprocess completion on Windows platform
On 24/05/2011 11:01, Claudiu Nicolaie CISMARU wrote: The problem appears when I close the called program (in our case calc.exe). The (1) part (the call of os.rename) raise an exception: type 'exceptions.WindowsError' (32, 'The process cannot access the file because it is being used by another process') [Error 32] The process cannot access the file because it is being used by another process Try running procexp to see if it can see what's happening to the handle. It's possible it's a virus checker / indexer, although they'd tend to allow the file to be deleted out from under them. It's not quite clear from your description above whether you can be sure that the called subprocess has closed all its handles by the time the os.rename runs. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
* 2011-05-24T06:05:35-04:00 * D'Arcy J. M. Cain wrote: On Tue, 24 May 2011 09:00:14 +0300 Octavian Rasnita orasn...@gmail.com wrote: %d = @l; Please tell me if Python has a syntax which is more clear than this for doing this thing. How is that clear? Shorter != clearer. A Python programmer looking at that sees line noise. I'm a Lisp programmer who sees (some) Python code as line noise. I am just defending a language which has a clearer syntax for doing some things, and a shorter code for other Are Perl programmers aware of some imminent worldwide shortage of electrons that Python programmers are not? Why is there this obsession with shortness? I don't know but from the point of view of a Lisp programmer Python has the same obsession. Not trolling, I just wanted to point out that these are just point of views. I don't actually care that much about these things. -- http://mail.python.org/mailman/listinfo/python-list
Re: how to get PID from subprocess library
Anssi Saari wrote: Couldn't you just try to call something via this handle, like self.handle.aria2.getVersion()? If there's an error, then start aria2 as a daemon and try again. Very good, you're right. Furthermore I should avoid to call that function several times. I think to join it with __init__ function The program on exit must tell aria2c to quit. -- goto /dev/null -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
On 5/22/11 3:44 AM, Octavian Rasnita wrote: Somebody told that C# and Objective C are good languages. They might be good, but they are proprietary, and not only that they are proprietary, but they need to be ran under platforms that cannot be used freely, so from the freedom point of view, Perl, Ruby, Python and Java are the ways to go. Proprietary? Licensing options for C# in its Mono (Free Platform) implementation: http://www.mono-project.com/Licensing Licensing options for Objective-C in its GNUStep (Free Platform) implementaiton http://www.gnustep.org/information/aboutGNUstep.html It may be true that these languages are more widely used on their originating platforms (Windows, OS X) than on Linux, but these implementations are definitely open source. --Kevin -- Kevin Walzer Code by Kevin http://www.codebykevin.com -- http://mail.python.org/mailman/listinfo/python-list
Re: os.access giving incorrect results on Windows
On 20/05/2011 12:26, Ayaskanta Swain wrote: Thanks for the reply and suggestions. I followed the patch provided by you in issue 2528, but the code looks very tricky to me. OK, first a summary of the discussion on the python-dev thread. Essentially it was felt that os.access was sufficiently shaky and unuseful on Windows that it was better to deprecate it and to discourage its use. So I'll be making that change when I can get round to it. As to your particular problem here... Does my_dir already exist? If it does then os.open won't be able to create it. If it doesn't then I can't see any reason why the code should fail there. I just ran it myself and it fails, as expected on an unpatched Python, on the assert on line 17 where the check is made for the result of os.access for W_OK. I don't have the time right now but if no-one else gets there first I hope to be able to post back with a standalone example of the AccessCheck API TJG Anyways I wrote my Test.py script tried only the def test_access_w(self): test case which is defined under class FileTests(unittest.TestCase) by providing my own directory path to check the write permissions on it. I executed my But it failed with the following errors – * python Test.py C:\temp\my_dir* test_access_w (__main__.FileTests) ... ERROR == ERROR: test_access_w (__main__.FileTests) -- Traceback (most recent call last): File Test.py, line 14, in test_access_w f = os.open(dirpath, os.O_CREAT) OSError: [Errno 13] Permission denied: 'C:\\temp\\my_dir' -- Ran 1 test in 0.000s FAILED (errors=1) Basically the os.open() function is failing to open a directory (In this case my_dir). The directory has write permissions for the user. Attached herewith is my Test script. Can you please suggest some simple python code which checks the write permissions of a directory in a straight forward way (Not by using unit tests) Thanks Ayaskant- Bangalore -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
On Wed, May 25, 2011 at 12:09 AM, Kevin Walzer k...@codebykevin.com wrote: Proprietary? Licensing options for C# in its Mono (Free Platform) implementation: http://www.mono-project.com/Licensing Licensing options for Objective-C in its GNUStep (Free Platform) implementaiton http://www.gnustep.org/information/aboutGNUstep.html Just a side point: Are these *languages* free, or merely these *implementations*? Chris Angelico -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
On 5/24/11 2:23 AM, Stefan Behnel wrote: Beliavsky, 20.05.2011 18:39: I thought this essay on why one startup chose Python was interesting. Since everyone seems to be hot flaming at their pet languages in this thread, let me quickly say this: Thanks for sharing the link. Stefan I kind of thought that other posters might also chime in on why they chose Python instead of insert other language here. Since no one else has, I'll bite. I've been programming for about seven years, and am basically self-taught. I got my first taste of writing code when trying do to some basic hacking on my (then) shiny new G3 iBook. (Even though it was a Mac, I was enthralled by its Unix underpinnings.) C was too hard for a programming newbie, and (at the time) I only understood shell to be a sequential series of commands. (cd ~/.Trash; ls; rm *) My goal was to write desktop GUI apps, and looking around at the available languages, libraries, and toolkits for Unix and the Mac, I settled on Tk as the UI toolkit, since it seemed to be the simplest one out there, and on Tcl and Python as the programming languages. (A brief detour with AppleScript convinced me that it is a useful scripting language for hooking into various parts of OS X, but it is not very powerful.) While Tcl doesn't get a lot of love or respect on this list, it is quite powerful in its way, and an understanding of Tcl is quite useful in particular for understanding Tk and its Python wrapper, Tkinter. After becoming productive with Tcl and writing a couple of applications in it, I turned to Python in earnest and set about learning its capabilities as well, and have since released a couple of Python desktop apps on the Mac (commercial apps, using Tk as the toolkit). With that background, here are my reasons for keeping Python in my toolbox: 1. Its core libraries and third-party packages address nearly every imaginable need. The size of its community is a real asset here. Tcl is a more compact language, with a smaller core library and fewer third-party packages (no library comparable to Mark Pilgrim's feedparser, for instance), which means that for some use cases, using Tcl would mean more work. 2. Python has excellent tools for deployment of desktop apps. Since I only work on the Mac, I'm not that familiar with py2exe, but py2app and bundlebuilder have always allowed me to wrap up my apps with an embedded Python interpreter with a minimum of fuss. Tcl also excels in deployment of desktop apps; other languages, such as Perl and Ruby, seem to lag behind in this respect. (I could find no actively-maintained, open-source, Mac-viable desktop app bundling tools for either Ruby or Perl, which cooled my interest in them considerably.) 3. Python's binding to Tk makes writing GUI apps a straightforward process. Since I already knew Tk quite well, learning its Python bindings was much simpler than learning another GUI toolkit such as PyQt or wxPython. The strategies I learned from Tcl to develop sophisticated Tk-based UI's translate quite well to Python. Python isn't perfect; for some instances, I find Tcl a more lightweight and accessible tool to use. I also spend a lot of time digging into Tcl and Tk's C API to extend their capabilities in certain ways; this also allows my Python apps to access such enhancements, via Tkinter. But all in all I'm a happy user of Python, and it will continue to have a primary place in my toolbox. --Kevin -- Kevin Walzer Code by Kevin http://www.codebykevin.com -- http://mail.python.org/mailman/listinfo/python-list
Codes do not run
Hi: I am learning Python on my own using a Guide to Programming with Python book. Author of the book is Micheal Dawson and I am using version 2.3.5 of python. When I try to run the code I do not get required results. The picture could not be loaded. I get trackback message regarding undefined module.The example from the book is as follows: from liveswires import games games.init(screen_width = 640, screen_height = 480, fps = 50) wall_image = games.load_image(wall.jpg, transparent = False) games.screen.background = wall_image games.screen.mainloop() Can anyone please assist me. Thank you Sikhumbuzo-- http://mail.python.org/mailman/listinfo/python-list
Re: Codes do not run
On Wed, May 25, 2011 at 1:17 AM, SKHUMBUZO ZIKHALI akekhofanan...@yahoo.co.uk wrote: The example from the book is as follows: from liveswires import games I think this might be meant to say livewires. Presumably you did install this package? If not, it won't work (but even if you have, it won't work as liveswires). http://www.livewires.org.uk/python/package Hope that helps! Chris Angelico -- http://mail.python.org/mailman/listinfo/python-list
Obtaining a full path name from file
s = C:\AciiCsv\Gravity_Test_data\A.csv f = open(s,r) How do I obtain the full pathname given the File, f? (which should equal C:\AciiCsv\Gravity_Test_data). I've tried all sorts of stuff and am just not finding it. Any help greatly appreciated ! -- http://mail.python.org/mailman/listinfo/python-list
Re: Codes do not run
* SKHUMBUZO ZIKHALI akekhofanan...@yahoo.co.uk [110524 07:26]: Hi: I am learning Python on my own using a Guide to Programming with Python book. Author of the book is Micheal Dawson and I am using version 2.3.5 of python. When I try to run the code I do not get required results. The picture could not be loaded. I get trackback message regarding undefined module.The example from the book is as follows: from liveswires import games games.init(screen_width = 640, screen_height = 480, fps = 50) wall_image = games.load_image(wall.jpg, transparent = False) games.screen.background = wall_image games.screen.mainloop() Can anyone please assist me. You should provide 1)the traceback itself. 2)Version of python 3)Operating system 4)All relevant code Also Do the following : import sys print(sys.path) Do you see the liveswires module in the path? -- Tim tim at johnsons-web dot com or akwebsoft dot com http://www.akwebsoft.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Obtaining a full path name from file
On 24/05/2011 16:36, RVince wrote: s = C:\AciiCsv\Gravity_Test_data\A.csv f = open(s,r) How do I obtain the full pathname given the File, f? (which should equal C:\AciiCsv\Gravity_Test_data). I've tried all sorts of stuff and am just not finding it. Any help greatly appreciated ! You're going to kick yourself: f.name TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Obtaining a full path name from file
Ha! You;re right -- but is there a way to get it without the filename appended at the end? On May 24, 11:52 am, Tim Golden m...@timgolden.me.uk wrote: On 24/05/2011 16:36, RVince wrote: s = C:\AciiCsv\Gravity_Test_data\A.csv f = open(s,r) How do I obtain the full pathname given the File, f? (which should equal C:\AciiCsv\Gravity_Test_data). I've tried all sorts of stuff and am just not finding it. Any help greatly appreciated ! You're going to kick yourself: f.name TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Obtaining a full path name from file
Tim Golden wrote:
On 24/05/2011 16:36, RVince wrote:
s = C:\AciiCsv\Gravity_Test_data\A.csv
f = open(s,r)
How do I obtain the full pathname given the File, f? (which should
equal C:\AciiCsv\Gravity_Test_data). I've tried all sorts of stuff
and am just not finding it. Any help greatly appreciated !
You're going to kick yourself:
f.name
There's trouble there, though:
Python 2.6.5 (r265:79063, Apr 16 2010, 13:09:56)
[GCC 4.4.3] on linux2
Type help, copyright, credits or license for more information.
f = open ('xyzzy.txt')
f.name
'xyzzy.txt'
import os
os.getcwd()
'/home/mwilson'
os.chdir('sandbox')
f.name
'xyzzy.txt'
If you open a file and don't get a full path from os.path.abspath right
away, the name in the file instance can get out-of-date.
Mel.
--
http://mail.python.org/mailman/listinfo/python-list
Re: Obtaining a full path name from file
On Wed, May 25, 2011 at 2:04 AM, RVince rvinc...@gmail.com wrote: Ha! You;re right -- but is there a way to get it without the filename appended at the end? Parse the file name with the os.path functions: http://docs.python.org/library/os.path.html Chris Angelico -- http://mail.python.org/mailman/listinfo/python-list
Re: Obtaining a full path name from file
On 24/05/2011 17:04, RVince wrote: Ha! You;re right -- but is there a way to get it without the filename appended at the end? Well, just use the functions in os.path, specifically os.path.dirname... TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Obtaining a full path name from file
RVince wrote: Ha! You;re right -- but is there a way to get it without the filename appended at the end? On May 24, 11:52 am, Tim Golden m...@timgolden.me.uk wrote: On 24/05/2011 16:36, RVince wrote: s = C:\AciiCsv\Gravity_Test_data\A.csv f = open(s,r) How do I obtain the full pathname given the File, f? (which should equal C:\AciiCsv\Gravity_Test_data). I've tried all sorts of stuff and am just not finding it. Any help greatly appreciated ! You're going to kick yourself: f.name TJG path, fileName = os.path.split(os.path.abspath(f.name)) JM -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
From: D'Arcy J.M. Cain da...@druid.net On Tue, 24 May 2011 09:00:14 +0300 Octavian Rasnita orasn...@gmail.com wrote: So, again, in Perl is just: %d = @l; Please tell me if Python has a syntax which is more clear than this for doing this thing. How is that clear? Shorter != clearer. A Python programmer looking at that sees line noise. A Perl programmer looking at d = dict ([a]) (or even d = dict(a,)) sees something that has something to do with creating a dictionary. At least he would know in which section of the manual to look for more information. The Perl programmers usually don't need to look in the dictionary when they are creating programs. Perl is harder to learn, but it is easier to use. Are Perl programmers aware of some imminent worldwide shortage of electrons that Python programmers are not? Why is there this obsession with shortness? A shorter code can be typed faster, obviously, and there are fewer possibility of appearing errors, but the shortage is not the most important thing. The most important thing is that the chars @, $, or % are the same in all languages, while the English words used by the languages that use many such words are harder to remember especially for the non-native English speakers. Python is not a very bad language from this perspective like Java is though. :-) In Perl the programmers can also use English words for some things, like $OUTPUT_AUTOFLUSH, but personally I never liked those things. Using $| instead is much shorter and clear, because I don't need to remember the English words like autoflush, or maybe it was just flush, or it was autoflush_output, or output_flush... something like $| can't be forgotten. Yes, I know that the guys from Google would never like that since these chars are not Googleable :-) Octavian -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
From: D'Arcy J.M. Cain da...@druid.net On Tue, 24 May 2011 00:17:55 -0500 John Bokma j...@castleamber.com wrote: $d = @a; That will give you the number of elements in @a. What you (probably) mean is %hash = @array; If I was even considering using Perl, this one exchange would send me screaming in the opposite direction. If you didn't consider to change the language you prefer it means that you are closed minded and use to fell in love with the tools you use. Don't make me tell here how many things I don't like in Perl. I use to tell those things on Perl mailing lists and make upset their members. :-) Similarly, if you don't like something in Perl, why don't you tell them what you don't like to the Perl programmers community and not just have the guts to tell that in a group where the majority share your preferences. I came here on the list to find good things about Python and to learn some things and use its good parts, and not to hear bashing about other programming languages. Octavian -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
From: Daniel Kluev dan.kl...@gmail.com On Tue, May 24, 2011 at 5:00 PM, Octavian Rasnita orasn...@gmail.com wrote: And you are telling that in Perl should be used an even more complicated and ugly syntax just for beeing the same as in Python just for showing that I am wrong, but I was comparing just the shortness and cleraness of the code. So, again, in Perl is just: %d = @l; Once again. Suppose we have array of key-value pairs (two-dimensional array), This is a forced example to fit the way Python can do it with a clean syntax, but I don't think there are cases in which somebody wants to create hashes/dictionaries where the key is not a plain string but an array. This is not a rare case, but a case that probably nobody needs, ever. Octavian -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
From: Kevin Walzer k...@codebykevin.com On 5/22/11 3:44 AM, Octavian Rasnita wrote: Somebody told that C# and Objective C are good languages. They might be good, but they are proprietary, and not only that they are proprietary, but they need to be ran under platforms that cannot be used freely, so from the freedom point of view, Perl, Ruby, Python and Java are the ways to go. Proprietary? Licensing options for C# in its Mono (Free Platform) implementation: http://www.mono-project.com/Licensing Licensing options for Objective-C in its GNUStep (Free Platform) implementaiton http://www.gnustep.org/information/aboutGNUstep.html It may be true that these languages are more widely used on their originating platforms (Windows, OS X) than on Linux, but these implementations are definitely open source. Exactly, this is why I said that it matters only the distributions used by the most users. Octavian -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
Subject: Re: Why did Quora choose Python for its development? I've been programming for about seven years, and am basically self-taught. I got my first taste of writing code when trying do to some basic hacking on my (then) shiny new G3 iBook. (Even though it was a Mac, I was enthralled by its Unix underpinnings.) C was too hard for a programming newbie, and (at the time) I only understood shell to be a sequential series of commands. (cd ~/.Trash; ls; rm *) My goal was to write desktop GUI apps, and looking around at the available languages, libraries, and toolkits for Unix and the Mac, I settled on Tk as the UI toolkit, since it seemed to be the simplest one out there, and on Tcl and Python as the programming languages. (A brief detour with AppleScript convinced me that it is a useful scripting language for hooking into various parts of OS X, but it is not very powerful.) While Tcl doesn't get a lot of love or respect on this list, it is quite powerful in its way, and an understanding of Tcl is quite useful in particular for understanding Tk and its Python wrapper, Tkinter. After becoming productive with Tcl and writing a couple of applications in it, I turned to Python in earnest and set about learning its capabilities as well, and have since released a couple of Python desktop apps on the Mac (commercial apps, using Tk as the toolkit). With that background, here are my reasons for keeping Python in my toolbox: 1. Its core libraries and third-party packages address nearly every imaginable need. The size of its community is a real asset here. Tcl is a more compact language, with a smaller core library and fewer third-party packages (no library comparable to Mark Pilgrim's feedparser, for instance), which means that for some use cases, using Tcl would mean more work. 2. Python has excellent tools for deployment of desktop apps. Since I only work on the Mac, I'm not that familiar with py2exe, but py2app and bundlebuilder have always allowed me to wrap up my apps with an embedded Python interpreter with a minimum of fuss. Tcl also excels in deployment of desktop apps; other languages, such as Perl and Ruby, seem to lag behind in this respect. (I could find no actively-maintained, open-source, Mac-viable desktop app bundling tools for either Ruby or Perl, which cooled my interest in them considerably.) 3. Python's binding to Tk makes writing GUI apps a straightforward process. Since I already knew Tk quite well, learning its Python bindings was much simpler than learning another GUI toolkit such as PyQt or wxPython. The strategies I learned from Tcl to develop sophisticated Tk-based UI's translate quite well to Python. Python isn't perfect; for some instances, I find Tcl a more lightweight and accessible tool to use. I also spend a lot of time digging into Tcl and Tk's C API to extend their capabilities in certain ways; this also allows my Python apps to access such enhancements, via Tkinter. But all in all I'm a happy user of Python, and it will continue to have a primary place in my toolbox. --Kevin Hi Kevin, Thanks for your message. It is helpful to know why some programmers prefer a certain OS, programming language, module or program, because this way the newbies can find its benefits rapidly. Yes there are packiging solutions for Perl under Mac, but I haven't tried them because I never used a Mac, however, I agree that python is better than Perl for creating desktop apps, because the modules which are used for creating GUIs are better developed. Too bad that you prefer Tk-based GUIs, because they are simple to use, I agree, but they create and promote discrimination because they are not accessible at all for the screen readers used by the blind. The standard Win32 GUIS/MFC or the libs that use those GUIs like Java SWT and wxWIDGETS used by WxPerl, WxPython... are much better accessible. Somebody told that he will try to make Tk accessible, but just as I expected, I haven't heard anything until now about any kind of success of that project. Octavian -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 3.2 Idle doesn't start. No error message.
On 5/24/2011 8:01 AM, markrri...@aol.com wrote: Hello all. I have Python 2.71 installed on my Windows 7 laptop and it runs fine. I was having a problem with Python 3.2, 32bit, not starting with an error message saying this application has quit abnormally. That was fixed when I took the PYTHONPATH statement out of my environment variables. However, now when I try to start Idle, I can see some hard drive activity, but Idle for Python 3.2 does not start; nothing happens. Any clues as to the problem here? How do you try to start it? -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
Teemu Likonen tliko...@iki.fi writes: * 2011-05-24T06:05:35-04:00 * D'Arcy J. M. Cain wrote: On Tue, 24 May 2011 09:00:14 +0300 Octavian Rasnita orasn...@gmail.com wrote: %d = @l; Please tell me if Python has a syntax which is more clear than this for doing this thing. How is that clear? Shorter != clearer. A Python programmer looking at that sees line noise. I'm a Lisp programmer who sees (some) Python code as line noise. Exactly, and glad to see there are also non-extremists in this group. I have been programming Perl for well over 17 years. I've been trying to switch to Python /several times/ but yet, with all its shortcomings Perl somehow still suits me better. To D'Arcy and other Pythonistas -- doesn't that sound like an extermistic organization or what -- it might look like a cat had an accident involving a keyboard but to me, and all those other people who do enjoy coding Perl it's beauty. The whole Python is so beatiful perfect sounds to me like people who have embraced the latin alphabet calling Devanagari unreadable chicken scratches made by backwards and poor people. To me it's a writing system of beauty. I don't know but from the point of view of a Lisp programmer Python has the same obsession. Not trolling, I just wanted to point out that these are just point of views. I don't actually care that much about these things. Wise words. And I agree. To me Python vs. Perl has nothing to do with being a fanboy (unlike many other posters here). I like both languages, I have invested a lot of time in learning Python and I am really not dense. Yet, even though I can program in Python sufficient enough very often I just pick Perl. Now why is that? -- John Bokma j3b Blog: http://johnbokma.com/Perl Consultancy: http://castleamber.com/ Perl for books:http://johnbokma.com/perl/help-in-exchange-for-books.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
D'Arcy J.M. Cain da...@druid.net writes: On Tue, 24 May 2011 00:17:55 -0500 John Bokma j...@castleamber.com wrote: $d = @a; That will give you the number of elements in @a. What you (probably) mean is %hash = @array; If I was even considering using Perl, this one exchange would send me screaming in the opposite direction. To me as silly as all those people who give Python a wide berth because of significant whitespace. I am glad that I am not so limited in that respect. To me programming languages are like writing systems used by humans; each has its short comings and each has its beauty. -- John Bokma j3b Blog: http://johnbokma.com/Perl Consultancy: http://castleamber.com/ Perl for books:http://johnbokma.com/perl/help-in-exchange-for-books.html -- http://mail.python.org/mailman/listinfo/python-list
Re: File access denied after subprocess completion on Windows platform
I'm quoting a message that I received on personal address and wasn't sent to list: try adding argument close_fds=True to subprocess.Popen harish And Tim's message: It's not quite clear from your description above whether you can be sure that the called subprocess has closed all its handles by the time the os.rename runs. Seems that close_fds did the trick. Anyway, I read that description on the documentation last night but I think I was so tired that I understood that in Windows has no effect... :) Thank you, all. -- Claudiu Nicolaie CISMARU GNU GPG Key: http://claudiu.targujiu.net/key.gpg T: +40 755 135455 E: clau...@virtuamagic.com, claudiu.cism...@gmail.com signature.asc Description: This is a digitally signed message part. -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
On Tue, 24 May 2011 19:10:56 +0300 Octavian Rasnita orasn...@gmail.com wrote: If I was even considering using Perl, this one exchange would send me screaming in the opposite direction. If you didn't consider to change the language you prefer it means that you are closed minded and use to fell in love with the tools you Now you are just bordering on rudeness. I never made any disparaging remarks about you. I only talked about a tool that you seem to like and I don't. In fact, I did consider and investigate Perl many years ago along with may other languages before I settled on Python. I didn't like it then and I don't like it now. However, I have never called someone close minded for preferring a different tool to me. Don't make me tell here how many things I don't like in Perl. Trust me, there is no need. I use to tell those things on Perl mailing lists and make upset their Good for you. I also have talked about things in Python that I don't like on this list. No one has ever accused me of being afraid to speak my mind. That facet of my personality has got me in a lot of trouble in my life from parents, teachers, bosses and I have even been known to speak out against the police while they were holding automatic rifles to my head. I doubt that there will ever be enough peer pressure on a mailing list to trump that. Similarly, if you don't like something in Perl, why don't you tell them what you don't like to the Perl programmers community and not just have the guts to tell that in a group where the majority share your preferences. Because I am not a missionary. Someone came to my house and told me why their way was better so I spoke up. Same thing when the JW come to my front door but I have no interest in going to their Kingdom Hall to tell them why they are wrong. I came here on the list to find good things about Python and to learn some things and use its good parts, and not to hear bashing about other programming languages. Same here but someone (I don't even know who started it) felt that it was necessary to tell us all why their language was better. -- D'Arcy J.M. Cain da...@druid.net | Democracy is three wolves http://www.druid.net/darcy/| and a sheep voting on +1 416 425 1212 (DoD#0082)(eNTP) | what's for dinner. -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
On Wed, May 25, 2011 at 2:50 AM, John Bokma j...@castleamber.com wrote: Wise words. And I agree. To me Python vs. Perl has nothing to do with being a fanboy (unlike many other posters here). I like both languages, I have invested a lot of time in learning Python and I am really not dense. Yet, even though I can program in Python sufficient enough very often I just pick Perl. Now why is that? To me, a language is a tool. The more tools you have competence with, the easier it will be to select the right one for any job. There are very few tools that have no use whatsoever; even Ook might be useful (although I have yet to be asked to port any code to OrangutanOS). This differs from the notion of having ten paradigms in one language, in that most source files will identify themselves fairly early on (possibly even out-of-band, such as filename extensions). Chris Angelico -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
On Tue, 24 May 2011 11:52:39 -0500 John Bokma j...@castleamber.com wrote: $d = @a; That will give you the number of elements in @a. What you (probably) mean is %hash = @array; If I was even considering using Perl, this one exchange would send me screaming in the opposite direction. To me as silly as all those people who give Python a wide berth because of significant whitespace. I am glad that I am not so limited in that respect. To me programming languages are like writing systems used by humans; each has its short comings and each has its beauty. My point was that even proponents of the language can make a significant error based on the way the variable is named. It's like the old Fortran IV that I first learned where the name of the variable determined whether it was an integer or a floating point. One of my favorite quotes (not sure if it was about Perl or APL) is I refuse to use a programming language where the proponents of it stick snippets under each other's nose and say 'I bet you can't guess what this does.' When I first looked at Perl it looked like line noise. When I first looked at Python it looked like pseudo-code. Look, I couldn't care less what other people use. I just don't see any reason for someone to come into a Python group and start proselytizing about why their tool is better than ours any more than I would feel any need to go to a Perl group and start trying to convert them. Bottom line - they did a study once (sorry, can't point to it any more) to determine the best tool for development. Turns out that the most productive tool was generally the one that the user believed was the most productive. In hindsight I think that that was rather obvious. -- D'Arcy J.M. Cain da...@druid.net | Democracy is three wolves http://www.druid.net/darcy/| and a sheep voting on +1 416 425 1212 (DoD#0082)(eNTP) | what's for dinner. -- http://mail.python.org/mailman/listinfo/python-list
Re: English Idiom in Unix: Directory Recursively
On May 23, 9:28 pm, Chris Angelico ros...@gmail.com wrote: On Tue, May 24, 2011 at 2:20 PM, Xah Lee xah...@gmail.com wrote: why don't you file a bug report? In GNU Emacs 23.2, it's under the Help menu. I suppose it's the same in other emacs distro. Because I do not consider its behaviour to be errant. And I suspect its main developers won't either. That's why I suggested you grab the sources and make The Perfect Emacs. why don't you try http://ergoemacs.org/ ? Xah -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
Chris Angelico ros...@gmail.com writes: On Wed, May 25, 2011 at 2:50 AM, John Bokma j...@castleamber.com wrote: Wise words. And I agree. To me Python vs. Perl has nothing to do with being a fanboy (unlike many other posters here). I like both languages, I have invested a lot of time in learning Python and I am really not dense. Yet, even though I can program in Python sufficient enough very often I just pick Perl. Now why is that? To me, a language is a tool. To me, and to a lot of Perl programmers it's not different. The more tools you have competence with, the easier it will be to select the right one for any job. There are very few tools that have no use whatsoever; even Ook might be useful (although I have yet to be asked to port any code to OrangutanOS). This differs from the notion of having ten paradigms in one language, If this is referring to Perl: the myths surrounding there is more than one way are even more crazy than there is only one way, maybe because more than one makes it so much easier to make those myths up? On top of that: how many paradigms does Python support? And which paradigms does Perl support and Python doesn't? Roughly there are two dialects of Perl [1]: what people who never took the time to learn it write, and the rest. Also, having more than one way to code something doesn't mean that there are no preferrences. Python has also several ways to do certain things; yet most skilled programmers have a preference for one way. It's not that different with Perl; in my experience exactly the same even. Of course one can say a lot about Perl; I can. But I have never had a rough time reading someone else's code, unless the person had no clue about programming to begin with [2]. If Perl is really such a disaster, why are people using it? Or are they all short-sighted idiots who don't know better? Several Perl programmers I know, including myself, are fully aware of Python and other programming languages. Yet, somehow they still program in Perl... [1] http://www.bofh.org.uk/2010/07/25/a-tale-of-two-languages [2] I once had to port a piece of Pascal code and after some studying it turned out that the 100+ lines or so did some variant of bubble sort and near the end reversed the order in a separate loop. -- John Bokma j3b Blog: http://johnbokma.com/Perl Consultancy: http://castleamber.com/ Perl for books:http://johnbokma.com/perl/help-in-exchange-for-books.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
D'Arcy J.M. Cain da...@druid.net writes:
On Tue, 24 May 2011 11:52:39 -0500
John Bokma j...@castleamber.com wrote:
$d = @a;
That will give you the number of elements in @a. What you (probably)
mean is %hash = @array;
If I was even considering using Perl, this one exchange would send me
screaming in the opposite direction.
To me as silly as all those people who give Python a wide berth because
of significant whitespace. I am glad that I am not so limited in that
respect. To me programming languages are like writing systems used by
humans; each has its short comings and each has its beauty.
My point was that even proponents of the language can make a
significant error based on the way the variable is named.
And someone can't misspell dict, for example? Are we now going to judge
a language on a typo someone just made?
When I first looked at Perl it looked like line noise. When I first
looked at Python it looked like pseudo-code.
When people who are used to a latin alpabeth look at Devanagari they
probably see scratches make by chickens. I saw beauty (and still see
it). To someone fluent in Devanagari the latin alpabeth might look like
Perl ;-).
Anyway, I have been exposed to pseudo-code a lot before I picked up
Perl, and yet, Perl somehow stuck with me. I learned about Python a
little later (IIRC), and have tried to pick it up several times over the
years that followed. Last year I have been more serious about picking it
up; and I even did some paid for work in it. I /can/ program in Python,
I do /like/ Python, but somehow I like Perl more; even when I am fully
aware of its shortcommings each time I use it.
As for line noise: very often it turns out that people mean the regular
expressions by this. But a similar dialect is used by many other
programming languages that I know of. The difference is that Perl has
dedicated operators for it.
A Perl programmer will call this line noise:
double_word_re = re.compile(r\b(?Pword\w+)\s+(?P=word)(?!\w),
re.IGNORECASE)
for match in double_word_re.finditer(text):
print ({0} is duplicated.format(match.group(word))
(p500 of Programming in Python 3, 2nd edition, any typos by me).
Look, I couldn't care less what other people use.
In that case you're an exception here. Or maybe the weekly Perl bashers
are way more vocal here and drown people like you out. One thing I hate
about comp.lang.perl.misc is the ivory tower attitude there. One thing I
hate about comp.lang.python is the weekly Perl bashing; to me it makes
those people look like extremists (Pythonistas, what's in a word), and
to be honest, it does affect how I view Python.
I just don't see any reason for someone to come into a Python group
and start proselytizing about why their tool is better than ours any
more than I would feel any need to go to a Perl group and start trying
to convert them.
Yet it seems to be accepted behavoir here to weekly bash Perl...
Bottom line - they did a study once (sorry, can't point to it any more)
to determine the best tool for development. Turns out that the most
productive tool was generally the one that the user believed was the
most productive. In hindsight I think that that was rather obvious.
Doesn't surprise me. I did switch to Emacs a few years back (used
Textpad for many years) but I don't think I now produce more code /
hour. But I am able to do some things way easier compared to using
Textpad, and that gives me pleasure.
--
John Bokma j3b
Blog: http://johnbokma.com/Perl Consultancy: http://castleamber.com/
Perl for books:http://johnbokma.com/perl/help-in-exchange-for-books.html
--
http://mail.python.org/mailman/listinfo/python-list
Re: NEED HELP- read file contents, while loop to accept user
TJG- that solved the printing issue!! Many thanks:)
Thanks to Chris and Jean Michel for your hints.
On Tue, May 24, 2011 at 4:07 AM, python-list-requ...@python.org wrote:
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Today's Topics:
1. Re: Why did Quora choose Python for its development?
(Stefan Behnel)
2. Re: Why did Quora choose Python for its development?
(Octavian Rasnita)
3. Re: Why did Quora choose Python for its development?
(Chris Angelico)
4. NEED HELP- read file contents, while loop to accept user
input, andenter to exit (Cathy James)
5. Re: NEED HELP- read file contents, while loop to accept user
input,and enter to exit (Tim Golden)
6. Re: NEED HELP- read file contents, while loop to accept user
input,and enter to exit (Chris Angelico)
7. Re: I installed Python 3 on Fedora 14 By Downloading
python3.2 bziped source tarball and install it according to the
README, Now How shall I uninstalled python 3.2? (harrismh777)
8. Re: Why did Quora choose Python for its development?
(Daniel Kluev)
9. Re: NEED HELP- read file contents, while loop to accept user
input,and enter to exit (Chris Rebert)
10. Re: [Savoynet] More 'vast heavin' (Chris Angelico)
-- Forwarded message --
From: Stefan Behnel stefan...@behnel.de
To: python-list@python.org
Date: Tue, 24 May 2011 08:23:55 +0200
Subject: Re: Why did Quora choose Python for its development?
Beliavsky, 20.05.2011 18:39:
I thought this essay on why one startup chose Python was interesting.
Since everyone seems to be hot flaming at their pet languages in this
thread, let me quickly say this:
Thanks for sharing the link.
Stefan
-- Forwarded message --
From: Octavian Rasnita orasn...@gmail.com
To: python-list@python.org
Date: Tue, 24 May 2011 11:10:36 +0300
Subject: Re: Why did Quora choose Python for its development?
From: Stefan Behnel stefan...@behnel.de
Beliavsky, 20.05.2011 18:39:
I thought this essay on why one startup chose Python was interesting.
Since everyone seems to be hot flaming at their pet languages in this
thread, let me quickly say this:
Thanks for sharing the link.
Maybe I have missed a message, but if I didn't, please provide that link.
I am always interested to find the best solutions.
Thanks.
Octavian
-- Forwarded message --
From: Chris Angelico ros...@gmail.com
To: python-list@python.org
Date: Tue, 24 May 2011 18:20:44 +1000
Subject: Re: Why did Quora choose Python for its development?
On Tue, May 24, 2011 at 6:10 PM, Octavian Rasnita orasn...@gmail.com
wrote:
From: Stefan Behnel stefan...@behnel.de
Beliavsky, 20.05.2011 18:39:
I thought this essay on why one startup chose Python was interesting.
Since everyone seems to be hot flaming at their pet languages in this
thread, let me quickly say this:
Thanks for sharing the link.
Maybe I have missed a message, but if I didn't, please provide that link.
I am always interested to find the best solutions.
At the beginning of the thread, three days and forty-odd messages ago,
this was posted:
http://www.quora.com/Why-did-Quora-choose-Python-for-its-development
It's the reason for the thread title, regardless of the current thread
content :)
Chris Angelico
-- Forwarded message --
From: Cathy James nambo...@gmail.com
To: python-list@python.org
Date: Tue, 24 May 2011 03:31:37 -0500
Subject: NEED HELP- read file contents, while loop to accept user input,
and enter to exit
dear mentor,
I need help with my code:
1) my program won't display file contents upon opening
2) my program is not writing to file
3) my program is not closing when user presses enter- gow do I do this with
a while loop?
please see my attempt below and help:
#1) open file and display current file contents:
f = open ('c:/testing.txt'', 'r')
f.readlines()
#2) and 3) use while loop to write user input to file, save to file,
close when press enter:
while True:
s = input ('enter name: ').strip()
f = open ('c:/testing.txt', 'a')
if f.writable():
f.write(s)
break
else:
f = open ('c:/testing.txt', 'r')
f.readlines()
for line in f:
print (line)
-- Forwarded message --
From: Tim Golden m...@timgolden.me.uk
To:
Date: Tue, 24 May 2011 09:46:11 +0100
Subject: Re: NEED HELP- read file contents, while loop
subscribef
-- http://mail.python.org/mailman/listinfo/python-list
Re: Obtaining a full path name from file
If a filename does not contain a path component, os.path.abspath will prepend the current directory path onto it. -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
From: John Bokma j...@castleamber.com Octavian Rasnita orasn...@gmail.com writes: From: Daniel Kluev dan.kl...@gmail.com a = [1,2] dict([a]) Yes, but d = dict([a]) is not so nice as $d = @a; That will give you the number of elements in @a. What you (probably) mean is %hash = @array; Of course. Thank you for correction. Octavian -- http://mail.python.org/mailman/listinfo/python-list
Code Review
Hello all,
Please review the code pasted below. I am wondering what other ways
there are of performing the same tasks. This was typed using version
3.2. The script is designed to clean up a directory (FTP, Logs, etc.)
Basically you pass two arguments. The first argument is an number of
days old to delete. The second argument is the directory where the
files and folders should be deleted. I imagine one enhancement would
be to create a function out of some of this.
### BEGIN ###
import os
import time
import shutil
import argparse
CurrentTime = time.time()
epocDay = 86400 # seconds
parser = argparse.ArgumentParser(description = Delete files and
folders in a directory N days old, add_help=False,
prog='directorycleaner', usage='%(prog)s 7 c:\\temp')
parser.add_argument('days', type=int, help=Numeric value: delete
files and folders older then N days)
parser.add_argument('directory', help=delete files and folders in
this directory)
parser.print_help()
args = parser.parse_args()
dictKeys = (vars(args))
HowManyDays = dictKeys['days']
WhatDirectory = dictKeys['directory']
print (HowManyDays)
print (WhatDirectory)
DaysToDelete = HowManyDays * epocDay
dirExists = os.path.exists(WhatDirectory)
if dirExists == False: print (The directory is missing)
DirListing = os.listdir(WhatDirectory)
for files in DirListing:
# Get the absolute path of the file name
abspath = (os.path.join(WhatDirectory, files))
# Get the current creation time of the file in epoc format
(midnight 1/1/1970)
FileCreationTime = (os.path.getctime(abspath))
# time.ctime converts epoch to a normal date
#print (time.ctime(CurrentTime))
# Get the date from seven days ago
WeekOldFileDate = CurrentTime - DaysToDelete
#print (CurrentTime)
#print (FileCreationTime)
#print (WeekOldFileDate)
#If the file is older than seve days doe something
if FileCreationTime WeekOldFileDate:
#check if the object is a file
if os.path.isfile(abspath): os.remove(abspath)
# It is not a file it is a directory
elif os.path.isdir(abspath): shutil.rmtree(abspath)
# END
--
http://mail.python.org/mailman/listinfo/python-list
Re: Python 3.2 Idle doesn't start. No error message.
On Tue, 24 May 2011 12:50:47 -0400, Terry Reedy tjre...@udel.edu wrote: On 5/24/2011 8:01 AM, markrri...@aol.com wrote: Hello all. I have Python 2.71 installed on my Windows 7 laptop and it runs fine. I was having a problem with Python 3.2, 32bit, not starting with an error message saying this application has quit abnormally. That was fixed when I took the PYTHONPATH statement out of my environment variables. However, now when I try to start Idle, I can see some hard drive activity, but Idle for Python 3.2 does not start; nothing happens. Any clues as to the problem here? How do you try to start it? From start|programs|python and clicking on the idle icon. -- http://mail.python.org/mailman/listinfo/python-list
Re: File access denied after subprocess completion on Windows platform
Seems that close_fds did the trick. Anyway, I read that description on the documentation last night but I think I was so tired that I understood that in Windows has no effect... :) Now. There is one more issue. Seems that on faster computers and/or Windows 7 (the Win32 thing I have tested on a HVM Xen machine with Windows XP) the os.rename is too fast after fp.close() and generates the same Exception. The code follows: curl.close() fp.close() os.rename(tfile, actualfile) Where, tfile is the .part file, actual file is the real destination, fp was opened with open(..., wb) and the descriptor passed to curl. I have solved the issue with self.msleep(10) - msleep is a method of QThread. But I don't think it's an elegant and normal solution. Did fp.close() is delayed, or? I mean, I don't want to rely on a sleep in order to workaround the access issue. On this issue there is no more process spawn, nothing, just the downloader thread and the main window. And the access denied appears at random time. -- Claudiu Nicolaie CISMARU GNU GPG Key: http://claudiu.targujiu.net/key.gpg T: +40 755 135455 E: clau...@virtuamagic.com, claudiu.cism...@gmail.com signature.asc Description: This is a digitally signed message part. -- http://mail.python.org/mailman/listinfo/python-list
Odp: Re: Strange behaviour of input() function (Python 3.2)
Ok, another time I'd like to thank you for your help. I gave up, I'm going to get used to IDLE GUI... at least this one works! -- http://mail.python.org/mailman/listinfo/python-list
Re: Functional Programing: stop using recursion, cons. Use map vectors
On May 24, 12:27 am, Deeyana d.awlb...@hotmail.invalid wrote: Classic unsubstantiated and erroneous claim. Scheme does not come OOTB with any suitable libraries for host interop and though it can make calls to C libraries, doing so is awkward and involves difficulties with the impedance mismatch between Scheme's data structures and C's char *, void *, int, double, array, etc. types. To top it off, C lacks automatic memory management, which means you'll have to concern yourself with manually disposing of allocated data structures used in interop. (Or, worse, things will get garbage collected by the Scheme runtime that the Scheme code no longer references, but the C library is still using, and bam! SIGSEGV.) Classic unsubstantiated and erroneous claim. -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
On Wed, May 25, 2011 at 3:56 AM, John Bokma j...@castleamber.com wrote: Chris Angelico ros...@gmail.com writes: To me, a language is a tool. To me, and to a lot of Perl programmers it's not different. The more tools you have competence with, the easier it will be to select the right one for any job. There are very few tools that have no use whatsoever; even Ook might be useful (although I have yet to be asked to port any code to OrangutanOS). This differs from the notion of having ten paradigms in one language, If this is referring to Perl: the myths surrounding there is more than one way are even more crazy than there is only one way, maybe because more than one makes it so much easier to make those myths up? On top of that: how many paradigms does Python support? And which paradigms does Perl support and Python doesn't? You miss my point. To me, BOTH Perl AND Python are tools; there is a time and a place for each. Also in my toolkit are C, C++, Pike, REXX, c, c, c. Even Java and ActionScript/Flash (both of which I detest for several reasons) have their place - browser-based applications that aren't limited to HTTP (try writing an in-browser MUD client in Javascript). Every language has its downsides; every language has its unique feature that makes it special. And every language I've ever used has taught me something. Know both. Bash both (if you feel so inclined). Use both. Chris Angelico -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 3.2 Idle doesn't start. No error message.
On 5/24/2011 4:12 PM, markrri...@aol.com wrote:
On Tue, 24 May 2011 12:50:47 -0400, Terry Reedytjre...@udel.edu
How do you try to start it?
From start|programs|python and clicking on the idle icon.
OK. Works fine for me on winxp desktop and win7 laptop.
3.2.1 will be out soon. Whether or not you find a fix before that,
download it, install, and try again. I think I would uninstall 3.2.0
first. You could, of course, try re-installing.
I just tried
C:\Documents and Settings\Terryset PYTHONPATH
Environment variable PYTHONPATH not defined
so undefining that should not be the problem.
The icon properties are not helpful as to how it starts IDLE.
Perhaps is uses ../python32/Lib/idlelib/idle.bat
@echo off
rem Start IDLE using the appropriate Python interpreter
set CURRDIR=%~dp0
start %CURRDIR%..\..\pythonw.exe %CURRDIR%idle.pyw %1 %2 %3 %4 %5 %6
%7 %8 %9
In a command prompt window you could directly try something like
C:\Programs\Python32pythonw Lib\idlelib\idle.pyw
which works for me. Make sure idlelib and idle.pyw are present.
Also check tcl/ and Lib/tkinter/
idle.pyw has
===
try:
import idlelib.PyShell
except ImportError:
# IDLE is not installed, but maybe PyShell is on sys.path:
try:
from . import PyShell
except ImportError:
raise
else:
import os
idledir = os.path.dirname(os.path.abspath(PyShell.__file__))
if idledir != os.getcwd():
# We're not in the IDLE directory, help the subprocess find
run.py
pypath = os.environ.get('PYTHONPATH', '')
if pypath:
os.environ['PYTHONPATH'] = pypath + ':' + idledir
else:
os.environ['PYTHONPATH'] = idledir
PyShell.main()
else:
idlelib.PyShell.main()
==
PYTHONPATH does come into play if but only if two imports fail.
You could make a copy of that and add prints to see what does and does
not execute.
--
Terry Jan Reedy
--
http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
On Wed, May 25, 2011 at 3:39 AM, D'Arcy J.M. Cain da...@druid.net wrote:
My point was that even proponents of the language can make a
significant error based on the way the variable is named. It's like
the old Fortran IV that I first learned where the name of the variable
determined whether it was an integer or a floating point.
I believe that's the origin of one of the proofs that God is real
(unless declared integer). And hey, I can't hate something that gave
us the classic use of i, j, k as loop indices!
One of my favorite quotes (not sure if it was about Perl or APL) is I
refuse to use a programming language where the proponents of it stick
snippets under each other's nose and say 'I bet you can't guess what
this does.'
Yes, I believe that was Perl. And an amusing quote. But most of the
point of it comes from the fact that Perl uses punctuation for most of
its keywords, whereas (say) Python uses English words; it's a lot more
fun to crunch something down when you can use $| and friends than when
you have to put x and y, complete with spaces, for a simple boolean.
But that says nothing about which language is actually better for
working with... beyond the fact that Perl can get more mileage out of
an 80-character line!
When I first looked at Perl it looked like line noise. When I first
looked at Python it looked like pseudo-code.
When I first looked at assembly language it looked like random junk
left behind in memory. When I first looked at COBOL it looked like ...
COBOL. Doesn't make either of them better or worse.
Pseudo-code is not a viable language for a computer to parse, but it's
a good language for scribbling down comments in. That doesn't
necessarily mean that a programming language that's closer to
pseudo-code is good. And verbosity doesn't necessarily equate to
quality; for instance, when I'm working in both Python and PHP, I find
it FAR tidier to use Python's {1:2,3:4] notation than PHP's
array(1=2,3=4) - but on the flip side, I would prefer to have
program structure defined by keywords like if and while than
obscure random line noise. (Fortunately, most sane languages do indeed
use keywords there.)
Chris Angelico
--
http://mail.python.org/mailman/listinfo/python-list
Re: File access denied after subprocess completion on Windows platform
On 5/24/2011 4:18 PM, Claudiu Nicolaie CISMARU wrote: Seems that close_fds did the trick. Anyway, I read that description on the documentation last night but I think I was so tired that I understood that in Windows has no effect... :) Now. There is one more issue. Seems that on faster computers and/or Windows 7 (the Win32 thing I have tested on a HVM Xen machine with Windows XP) the os.rename is too fast after fp.close() and generates the same Exception. The code follows: curl.close() fp.close() os.rename(tfile, actualfile) Where, tfile is the .part file, actual file is the real destination, fp was opened with open(..., wb) and the descriptor passed to curl. I have solved the issue with self.msleep(10) - msleep is a method of QThread. But I don't think it's an elegant and normal solution. Did fp.close() is delayed, or? I mean, I don't want to rely on a sleep in order to workaround the access issue. On this issue there is no more process spawn, nothing, just the downloader thread and the main window. And the access denied appears at random time. I would go with what works. In my experience, mysterious and seemingly buggy error messages, including Access Denied are not unusual on Windows. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
Chris Angelico ros...@gmail.com writes: On Wed, May 25, 2011 at 3:56 AM, John Bokma j...@castleamber.com wrote: Chris Angelico ros...@gmail.com writes: To me, a language is a tool. To me, and to a lot of Perl programmers it's not different. The more tools you have competence with, the easier it will be to select the right one for any job. There are very few tools that have no use whatsoever; even Ook might be useful (although I have yet to be asked to port any code to OrangutanOS). This differs from the notion of having ten paradigms in one language, If this is referring to Perl: the myths surrounding there is more than one way are even more crazy than there is only one way, maybe because more than one makes it so much easier to make those myths up? On top of that: how many paradigms does Python support? And which paradigms does Perl support and Python doesn't? You miss my point. Could be, English is my second language. But to me ten paradigms in one language smelled of Perl bashing (or maybe Falcon bashing). My apologies if that was not the intent. To me, BOTH Perl AND Python are tools; there is a time and a place for each. Also in my toolkit are C, C++, Pike, REXX, c, c, c. Even Java and ActionScript/Flash (both of which I detest for several reasons) have their place - browser-based applications that aren't limited to HTTP (try writing an in-browser MUD client in Javascript). Every language has its downsides; every language has its unique feature that makes it special. And every language I've ever used has taught me something. Know both. Bash both (if you feel so inclined). Use both. Can't agree more with you, thanks for the clarification. -- John Bokma j3b Blog: http://johnbokma.com/Perl Consultancy: http://castleamber.com/ Perl for books:http://johnbokma.com/perl/help-in-exchange-for-books.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 3.2 Idle doesn't start. No error message.
On Tue, 24 May 2011 17:53:53 -0400, Terry Reedy tjre...@udel.edu
wrote:
On 5/24/2011 4:12 PM, markrri...@aol.com wrote:
On Tue, 24 May 2011 12:50:47 -0400, Terry Reedytjre...@udel.edu
How do you try to start it?
From start|programs|python and clicking on the idle icon.
OK. Works fine for me on winxp desktop and win7 laptop.
3.2.1 will be out soon. Whether or not you find a fix before that,
download it, install, and try again. I think I would uninstall 3.2.0
first. You could, of course, try re-installing.
I just tried
C:\Documents and Settings\Terryset PYTHONPATH
Environment variable PYTHONPATH not defined
so undefining that should not be the problem.
The icon properties are not helpful as to how it starts IDLE.
Perhaps is uses ../python32/Lib/idlelib/idle.bat
@echo off
rem Start IDLE using the appropriate Python interpreter
set CURRDIR=%~dp0
start %CURRDIR%..\..\pythonw.exe %CURRDIR%idle.pyw %1 %2 %3 %4 %5 %6
%7 %8 %9
In a command prompt window you could directly try something like
C:\Programs\Python32pythonw Lib\idlelib\idle.pyw
which works for me. Make sure idlelib and idle.pyw are present.
Also check tcl/ and Lib/tkinter/
idle.pyw has
===
try:
import idlelib.PyShell
except ImportError:
# IDLE is not installed, but maybe PyShell is on sys.path:
try:
from . import PyShell
except ImportError:
raise
else:
import os
idledir = os.path.dirname(os.path.abspath(PyShell.__file__))
if idledir != os.getcwd():
# We're not in the IDLE directory, help the subprocess find
run.py
pypath = os.environ.get('PYTHONPATH', '')
if pypath:
os.environ['PYTHONPATH'] = pypath + ':' + idledir
else:
os.environ['PYTHONPATH'] = idledir
PyShell.main()
else:
idlelib.PyShell.main()
==
PYTHONPATH does come into play if but only if two imports fail.
You could make a copy of that and add prints to see what does and does
not execute.
Thanks Terry, I will do what I can. I'll let you know how it works
out. But thanks again. Every little bit helps me get closer to the
solution.
--
http://mail.python.org/mailman/listinfo/python-list
Re: English Idiom in Unix: Directory Recursively
On Wed, May 25, 2011 at 3:40 AM, Xah Lee xah...@gmail.com wrote: On May 23, 9:28 pm, Chris Angelico ros...@gmail.com wrote: Because I do not consider its behaviour to be errant. And I suspect its main developers won't either. That's why I suggested you grab the sources and make The Perfect Emacs. why don't you try http://ergoemacs.org/ ? You miss my point. I am not desiring of a different emacs; you were the one complaining about its shortcomings. Chris Angelico -- http://mail.python.org/mailman/listinfo/python-list
Beginner needs advice
Here's my background: I'm a Windows based Visual FoxPro developer, and I want to start programming in Python. I'll be sticking to Windows (XP 7) and my immediate needs are to manage display large groups of jpg's, tiff's etc... so I need form based graphics capable libraries (in addition to basic programming skills, of course). So Python 2 or 3? Add on packages/libraries? Tutorials? Thanks! -Lew -- http://mail.python.org/mailman/listinfo/python-list
Re: Functional Programing: stop using recursion, cons. Use map vectors
On Tue, May 24, 2011 at 8:27 AM, Deeyana d.awlberg@hotmail.invalid wrote: Classic unsubstantiated and erroneous claim. Scheme does not come OOTB with any suitable libraries for host interop and though it can make calls to C libraries, doing so is awkward and involves difficulties with the impedance mismatch between Scheme's data structures and C's char *, void *, int, double, array, etc. types. To top it off, C lacks automatic memory management, which means you'll have to concern yourself with manually disposing of allocated data structures used in interop. (Or, worse, things will get garbage collected by the Scheme runtime that the Scheme code no longer references, but the C library is still using, and bam! SIGSEGV.) How is this fundamentally different from Python calling into C? Chris Angelico -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
Chris Angelico ros...@gmail.com writes:
On Wed, May 25, 2011 at 3:39 AM, D'Arcy J.M. Cain da...@druid.net wrote:
My point was that even proponents of the language can make a
significant error based on the way the variable is named. It's like
the old Fortran IV that I first learned where the name of the variable
determined whether it was an integer or a floating point.
I believe that's the origin of one of the proofs that God is real
(unless declared integer). And hey, I can't hate something that gave
us the classic use of i, j, k as loop indices!
One of my favorite quotes (not sure if it was about Perl or APL) is I
refuse to use a programming language where the proponents of it stick
snippets under each other's nose and say 'I bet you can't guess what
this does.'
Yes, I believe that was Perl. And an amusing quote. But most of the
point of it comes from the fact that Perl uses punctuation for most of
its keywords,
For example?
whereas (say) Python uses English words; it's a lot more
fun to crunch something down when you can use $|
That's not a keyword but a special (global) variable. On top of that,
you don't have to use it [1] and most people most likely encounter this in
(badly) written CGI scripts originating in the last century.
Yes, Perl is fantastic for writing hard to read obfuscated code. And
yes, newbies are great at writing this from the very start, especially
since they seem to copy paste examples written by other newbies (often
written in the previous century...). But Perl doesn't force one to write
unreadable code. If Perl was really so unreadable, why haven't I /still/
not switched to Python? What keeps me going back to Perl?
and friends than when you have to put x and y, complete with spaces,
for a simple boolean.
Perl has also the and logical operator. This is legal Perl:
if ( $x and $y ) {
print yes\n;
}
[1] You can use $OUTPUT_AUTOFLUSH (use English;), or use IO::Handle and
use the autoflush method [2].
[2] In Perl 5.14 IO::File is now loaded on demand:
http://search.cpan.org/dist/perl/pod/perldelta.pod#Filehandle_method_calls_load_IO::File_on_demand
--
John Bokma j3b
Blog: http://johnbokma.com/Perl Consultancy: http://castleamber.com/
Perl for books:http://johnbokma.com/perl/help-in-exchange-for-books.html
--
http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
On Wed, May 25, 2011 at 9:16 AM, John Bokma j...@castleamber.com wrote:
Chris Angelico ros...@gmail.com writes:
Yes, I believe that was Perl. And an amusing quote. But most of the
point of it comes from the fact that Perl uses punctuation for most of
its keywords,
For example?
whereas (say) Python uses English words; it's a lot more
fun to crunch something down when you can use $|
That's not a keyword but a special (global) variable. On top of that,
you don't have to use it [1] and most people most likely encounter this in
(badly) written CGI scripts originating in the last century.
Okay, poor example. But there's a lot of Perl that uses concise
notation for things that in Python are keyworded; for instance,
regular expressions. I'm insufficiently fluent in Perl to quote good
examples; mainly what I'm referring to is the notion of operators that
are separators, as opposed to keywords that get blank-delimited. I
generally prefer syntactic elements to be punctuation (eg { } rather
than BEGIN and END (or DO and END)). It does also make things easier
to crunch, for better or for worse.
and friends than when you have to put x and y, complete with spaces,
for a simple boolean.
Perl has also the and logical operator. This is legal Perl:
if ( $x and $y ) {
print yes\n;
}
That's at a completely different precedence level, isn't it? For
operators up where you expect them to be, there's and ||. A bit of
digging (why isn't this sort of thing always the first hit for name
of language operator precedence in Google?) brought up:
http://perldoc.perl.org/perlop.html
For instance:
$a = $b $c ? $e : $f;
# versus
$a = $b and $c ? $e : $f;
The first one is an assignment to $a, conditional on two variables.
The second is an unconditional assignment to $a, and then based on
that, evaluates either $e or $f and does nothing with it.
Python:
a = e if b and c else f
It's pretty similar, actually (although, coming from a C background, I
do prefer to have the condition first); but I could crunch the first
one down a lot, while the last one is almost as tight as it can be.
$a=$b$c?$e:$f;
a=e if b and c else f
It's that crunched appearance that makes Perl look like line noise,
and the open keyworded appearance that makes Python look like
pseudocode. But that's not necessarily a good thing; a courteous
programmer can space out Perl to keep it readable, and he then has the
option of crunching pieces that are 'logically one' and spacing out
the parts that aren't:
$a= $b$c ? $e : $f;
Silly, contrived example, but in production code I've often had
situations where it makes sense to space out one part of an expression
and crunch another. And when everything's an English word, that's not
an available option.
Oh, and that's ignoring the issue that not everyone is fluent in English.
That said, though, I do find Python a lot easier for reading other
people's code in. A LOT easier.
Chris Angelico
--
http://mail.python.org/mailman/listinfo/python-list
Re: Faster Recursive Fibonacci Numbers
On May 17, 8:50 am, RJB rbott...@csusb.edu wrote: I noticed some discussion of recursion. the trick is to find a formula where the arguments are divided, not decremented. I've had a divide-and-conquer recursion for the Fibonacci numbers for a couple of years in C++ but just for fun rewrote it in Python. It was easy. Enjoy. And tell me how I can improve it! def fibo(n): A Faster recursive Fibonaci function Use a formula from Knuth Vol 1 page 80, section 1.2.8: If F[n] is the n'th Fibonaci number then F[n+m] = F[m]*F[n+1] + F[m-1]*F[n]. First set m = n+1 F[ 2*n+1 ] = F[n+1]**2 + F[n]*2. Then put m = n in Knuth's formula, F[ 2*n ] = F[n]*F[n+1] + F[n-1]* F[n], and replace F[n+1] by F[n]+F[n-1], F[ 2*n ] = F[n]*(F[n] + 2*F[n-1]). if n=0: return 0 elif n=2: return 1 elif n%2==0: half=n//2 f1=fibo(half) f2=fibo(half-1) return f1*(f1+2*f2) else: nearhalf=(n-1)//2 f1=fibo(nearhalf+1) f2=fibo(nearhalf) return f1*f1 + f2*f2 RJB the Lurkerhttp://www.csci.csusb.edu/dick/cs320/lab/10.html There are many ways to write this function. The one I like shows-off a general purpose dynamic programming technique while staying *very* close to a common textbook definition of a fibonacci number: @functools.lru_cache() def fibo(n): return 1 if n 2 else fibo(n-1) + fibo(n-2) Raymond -- http://mail.python.org/mailman/listinfo/python-list
Re: English Idiom in Unix: Directory Recursively
On 2011-05-24, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: I think that is a patronizing remark that under-estimates the intelligence of lay people and over-estimates the difficulty of understanding recursion. Why would you presume this to be related to intelligence? The point was not about being *able* to understand, but about *needing* to understand in order to use. Maybe they don't need to understand recursion. So what? I think you should read the earlier posts again, this is drifting so far from what I intended. What I mean is: I'm certain that over the years I've had more than one person come to me and ask what 'Do you wish to delete this directory recursively?' meant. BAut never have I been asked to explain what 'Do you wish to delete this directory and it's subdirs/with all it's contents?' meant. Never. Recursion is a perfectly good English word, no more technical than accelerate or incinerate or dissolve or combustion. Do people need to know the word combustion when they could say burn instead? It wasn't about the word, but about the nature of the function. Besides, if the chance exists of a confusion between a recursive job and the fact the job is done using a recursive function... I would try staying away from the expression. Why not use 'delete a directory'. It's obvious the content gets binned, too. Do you know many people who incinerate leaves and branches in their garden? I burn them. Do they need to know the words microwave oven when they could be saying invisible rays cooking thing? The word oven has existed for ages, microwave is just a name for the type of oven. Not even a description, just a name. I wonder whether physicists insist that cars should have a go faster pedal because ordinary people don't need to understand Newton's Laws of Motion in order to drive cars? Gas pedal. Pedal was allraedy known when the car was invented. The simple addition of gas solved that need. Oh, and it's break pedal, not descellarator. (sp?) Who are you to say that people shouldn't be exposed to words you deem that they don't need to know? I'm one of the 'people'. You say exposed to, I say bothered/bored with. I have nothing against the use of a proper, precise term. And that word can be a complex one with many, many sylables (seems to add value, somehow). But I'm not an academic, so I don't admire the pedantic use of terms that need to be explained to 'lay' people. Especially if there is a widespread, usually shorter and much simpler one for it. A pointless effort if pointless, even when comming from a physicist. :-) -- When in doubt, use brute force. -- Ken Thompson -- http://mail.python.org/mailman/listinfo/python-list
Re: Functional Programing: stop using recursion, cons. Use map vectors
On Tue, 24 May 2011 13:39:15 -0700, asandroq wrote: On May 24, 12:27 am, Deeyana d.awlb...@hotmail.invalid wrote: Classic unsubstantiated and erroneous claim. Scheme does not come OOTB with any suitable libraries for host interop and though it can make calls to C libraries, doing so is awkward and involves difficulties with the impedance mismatch between Scheme's data structures and C's char *, void *, int, double, array, etc. types. To top it off, C lacks automatic memory management, which means you'll have to concern yourself with manually disposing of allocated data structures used in interop. (Or, worse, things will get garbage collected by the Scheme runtime that the Scheme code no longer references, but the C library is still using, and bam! SIGSEGV.) Classic unsubstantiated and erroneous claim. On your part, asandroq. -- http://mail.python.org/mailman/listinfo/python-list
Link errors embedding Python 3.2
I'm starting to feel incredibly stupid here. Hopefully someone can
point out a really obvious thing that I've missed, thus enabling me to
move forward!
Up until now, I've been embedding Python 2.6.6 in my C++ program, by
compiling with -I/usr/include/python2.6 -lpython2.6, and all has
been well. The Python I use was installed as part of Ubuntu's setup,
and is managed by apt-get. Now, I'm trying to switch to using Python
3. so I downloaded the 3.2 sources and did the usual './configure;
make; sudo make install', then snooped to see where it had put things.
I'm now compiling with -I/usr/local/include/python3.2m -lpython3.2m,
and it's compiling successfully (now that I've changed the function
names eg PyString -- PyBytes), but the link fails with heaps of
undefined references - as far as I can tell, every single Py*
reference is failing.
There is a libpython3.2m.a accessible, and poking around with ar and
nm shows that it does contain object files with the necessary symbols.
If I deliberately misspell the -lpython3.2m option, the link bombs
immediately, so presumably it IS finding the library. Explicitly
naming the library as ~/Python-3.2/libpython3.2m.a (or using ar to
extract them and then linking against the whole directoryful of .o
files, which does the same thing) cures the undefined references to
Py* functions, but brings in undefined refs to dlsym and openpty and
family.
Is/are there additional library/ies that I need to be linking against
for Python 3? And why is the usual -lpython3.2m not working as normal?
Is there a problem with C++ and Python? (I tried surrounding #include
Python.h with extern C { }, but to no avail.)
Hoping that someone has already done this!
Chris Angelico
--
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Subject: mrjob v0.2.6 released
What is mrjob? - mrjob is a Python package that helps you write and run Hadoop Streaming jobs. mrjob fully supports Amazon's Elastic MapReduce (EMR) service, which allows you to buy time on a Hadoop cluster on an hourly basis. It also works with your own Hadoop cluster. Some important features: * Run jobs on EMR, your own Hadoop cluster, or locally (for testing). * Write multi-step jobs (one map-reduce step feeds into the next) * Duplicate your production environment inside Hadoop * Upload your source tree and put it in your job's $PYTHONPATH * Run make and other setup scripts * Set environment variables (e.g. $TZ) * Easily install python packages from tarballs (EMR only) * Setup handled transparently by mrjob.conf config file * Automatically interpret error logs from EMR * SSH tunnel to hadoop job tracker on EMR * Minimal setup * To run on EMR, set $AWS_ACCESS_KEY_ID and $AWS_SECRET_ACCESS_KEY * To run on your Hadoop cluster, install simplejson and make sure $HADOOP_HOME is set. More info: * Install mrjob: python setup.py install * Documentation: http://packages.python.org/mrjob/ * PyPI: http://pypi.python.org/pypi/mrjob * Development is hosted at github: http://github.com/Yelp/mrjob What's new? - v0.2.6, 2011-05-24 -- fix bootstrapping mrjob * Set Hadoop to run on EMR with --hadoop-version (Issue #71). * Default is still 0.18, but will change to 0.20 in mrjob v0.3.0. * New inline runner, for testing locally with a debugger * New --strict-protocols option, to catch unencodable data (Issue #76) * Added steps_python_bin option (for use with virtualenv) * mrjob no longer chokes when asked to run on an EMR job flow running Hadoop 0.20 (Issue #110) * mrjob no longer chokes on job flows with no LogUri (Issue #112) -- http://mail.python.org/mailman/listinfo/python-list
Re: Beginner needs advice
On 05/24/2011 03:17 PM, Lew Schwartz wrote: Here's my background: I'm a Windows based Visual FoxPro developer, and I want to start programming in Python. I'll be sticking to Windows (XP 7) and my immediate needs are to manage display large groups of jpg's, tiff's etc... so I need form based graphics capable libraries (in addition to basic programming skills, of course). So Python 2 or 3? Add on packages/libraries? Tutorials? Thanks! -Lew If Visual Foxpro is your thing, maybe Dabo (www.dabodev.com) would be of interest to you. The developers are former Visual Foxpro programmers... -- http://mail.python.org/mailman/listinfo/python-list
Re: English Idiom in Unix: Directory Recursively
On Wed, May 25, 2011 at 8:06 AM, Rikishi42 skunkwo...@rikishi42.net wrote: On 2011-05-24, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: Why not use 'delete a directory'. It's obvious the content gets binned, too. Which is why I raised the issue with regard to other operations. Manipulating files matching a glob can be done recursively or nonrecursively, and both make perfect sense. Do you know many people who incinerate leaves and branches in their garden? I burn them. We used to incinerate ours (until we stopped using rapid exothermic oxidation as a means of DECREFfing our garden waste). It's a cultural thing, I guess. Do they need to know the words microwave oven when they could be saying invisible rays cooking thing? The word oven has existed for ages, microwave is just a name for the type of oven. Not even a description, just a name. It's funny how a single piece of jargon can go incredibly mainstream. Microwave (with or without oven after it) is well known, but plenty else remains obscure. I wonder whether physicists insist that cars should have a go faster pedal because ordinary people don't need to understand Newton's Laws of Motion in order to drive cars? Gas pedal. Pedal was allraedy known when the car was invented. The simple addition of gas solved that need. Oh, and it's break pedal, not descellarator. (sp?) Americans might call it a gas pedal. We call it an accelerator. You don't have a decelerator pedal though, because it's more accurately called a brake pedal because it controls the brakes. Personally, I'm of the opinion that people *should* have some basic understanding of Newton's laws before they take charge of a ton of high-powered machinery. At very least, some basic comprehension of kinetic energy, and the way a high speed train has a *LOT* of it. Might result in drivers with a little more respect for trains and trucks. Who are you to say that people shouldn't be exposed to words you deem that they don't need to know? I'm one of the 'people'. You say exposed to, I say bothered/bored with. I have nothing against the use of a proper, precise term. And that word can be a complex one with many, many sylables (seems to add value, somehow). But I'm not an academic, so I don't admire the pedantic use of terms that need to be explained to 'lay' people. Especially if there is a widespread, usually shorter and much simpler one for it. A pointless effort if pointless, even when comming from a physicist. :-) In any industry, you can find jargon in several different categories: 1) Terms that describe unique objects/effects/etc, where you would be using a lengthy phrase otherwise (eg URL) 2) Terms that are clearer or more precise than the less-jargonny equivalents, but where you could get away with dodging jargon if you wanted to (eg recursive operation) 3) Words and phrases that have little value to an end user, but can be used to show off your skill (eg Network Destabilisation from Low Voltage Fluorescent Lamp Spikes). I would never apologise for using terms in the first category. Just explain them (in a footnote if necessary) and expect people to be accurate. The third category is mainly used for invoking Dummy Mode (if you don't know what that is, google my example - it's vintage BOFH), and should be avoided. It's the middle lot that are harder. Do you use it and risk people not understanding, or avoid it and risk people misunderstanding? Tough choice, especially since those who misunderstand often won't know why. If we forever aim to the stupidest of humans, the human race will get stupider. If we forever aim way above people's heads, they won't bother to communicate. An eternal dilemma. Chris Angelico -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did Quora choose Python for its development?
Chris Angelico ros...@gmail.com writes:
On Wed, May 25, 2011 at 9:16 AM, John Bokma j...@castleamber.com wrote:
Chris Angelico ros...@gmail.com writes:
Yes, I believe that was Perl. And an amusing quote. But most of the
point of it comes from the fact that Perl uses punctuation for most of
its keywords,
For example?
whereas (say) Python uses English words; it's a lot more
fun to crunch something down when you can use $|
That's not a keyword but a special (global) variable. On top of that,
you don't have to use it [1] and most people most likely encounter this in
(badly) written CGI scripts originating in the last century.
Okay, poor example. But there's a lot of Perl that uses concise
notation for things that in Python are keyworded; for instance,
regular expressions.
Perl does have indeed operators for matching and substitution. It's:
( my $foo = $bar ) =~ s/ ... / ... /;
versus
foo = re.sub(r ... , ... , bar )
and:
my $foo = qr/
...
/xi;
versus:
foo = re.compile(r
...
, re.IGNORECASE|re.VERBOSE)
It's just a matter of taste IMO. The regular expression noise stays the
same ;-).
and friends than when you have to put x and y, complete with spaces,
for a simple boolean.
Perl has also the and logical operator. This is legal Perl:
if ( $x and $y ) {
print yes\n;
}
That's at a completely different precedence level, isn't it?
Yes, /but/ in this case it doesn't matter. Of course there are cases
that it /does/ matter:
For instance:
$a = $b $c ? $e : $f;
# versus
$a = $b and $c ? $e : $f;
The first one is an assignment to $a, conditional on two variables.
The second is an unconditional assignment to $a, and then based on
that, evaluates either $e or $f and does nothing with it.
Python:
a = e if b and c else f
Yes, recently added to the language, before that you had to and or
your way out of it (or use lambdas).
It's pretty similar, actually (although, coming from a C background, I
do prefer to have the condition first); but I could crunch the first
one down a lot, while the last one is almost as tight as it can be.
$a=$b$c?$e:$f;
a=e if b and c else f
It's that crunched appearance that makes Perl look like line noise,
So you just agree with what I earlier wrote: one /can/ write harder to
read in Perl, like you can jump off a cliff. And I have seen a lot of
extremely badly written Perl code, but never seen a disaster like the
one above ;-).
and the open keyworded appearance that makes Python look like
pseudocode. But that's not necessarily a good thing; a courteous
programmer can space out Perl to keep it readable, and he then has the
option of crunching pieces that are 'logically one' and spacing out
the parts that aren't:
$a= $b$c ? $e : $f;
Silly, contrived example, but in production code I've often had
situations where it makes sense to space out one part of an expression
and crunch another. And when everything's an English word, that's not
an available option.
I would write it like
$a = ( $b and $c ) ? $e : $f;
That said, though, I do find Python a lot easier for reading other
people's code in. A LOT easier.
Like I wrote earlier: I find Perl easier to read. And honestly, I don't
know why. Partially it might have a lot to do with having been exposed
to it much more. But many years back, when I could pick between several
languages, Perl was the one that stuck with me. And that was before
everybody and his mom was hacking CGI scripts in Perl (badly).
And while I do want to switch to Python (or use it more often), for one
reason or another it's hard. Maybe it's for similar reasons that one
loves Spanish but hates German as a second language (or vice versa)?
Both Perl and Python are evolving. Perl has a lot of bagage from the
beginning, and more so since a lot got slapped on later on. Things are
changing, but you just can't make major changes since people, like me I
guess, are used to how things are right now.
I now and then have peeks at Perl 6 and each time my first reaction is:
this is Perl only in name; it's very, very different. On the other hand
it still shares what I consider warts with Perl 5.
--
John Bokma j3b
Blog: http://johnbokma.com/Perl Consultancy: http://castleamber.com/
Perl for books:http://johnbokma.com/perl/help-in-exchange-for-books.html
--
http://mail.python.org/mailman/listinfo/python-list
Re: Abandoning Python
John Lee j...@pobox.com writes: In this thread, I'm asking about the views of Python programmers on languages other than Python. I sympathize with what you're looking for but I don't think there's a really good answer at this time. Things IMO are converging in the direction of functional languages like Haskell but it seems to me that there is a big gap between the current academic ideas and what makes sense for working programmers. The academics aren't all that concerned with practicality, but good solutions really have to incorporate their ideas since the rest of us are rather badly behind the times. Haskell probably has the most vibrant development community at the moment but its learning curve is quite steep, and it has various shortcomings some of which are being worked on but others of which may be insurmountable. If you like the Java ecosystem but not the Java language, check out Scala. You could look for the article The Next Mainstream Programming Languages by Tim Sweeney. It discusses similar issues to what I think you are facing. -- http://mail.python.org/mailman/listinfo/python-list
[issue1625] bz2.BZ2File doesn't support multiple streams
Nir Aides n...@winpdb.org added the comment: Wait, the tests seem wrong. I'll post an update later today. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1625 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12136] test_logging fails when no ssl available
Changes by Vinay Sajip vinay_sa...@yahoo.co.uk: -- resolution: - fixed status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12136 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12151] test_logging fails sometimes
Changes by Vinay Sajip vinay_sa...@yahoo.co.uk: -- assignee: - vinay.sajip ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12151 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8796] Deprecate codecs.open(), codecs.StreamReader and codecs.StreamWriter
Changes by Petri Lehtinen pe...@digip.org: -- nosy: +petri.lehtinen ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8796 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12155] queue example doesn't stop worker threads
STINNER Victor victor.stin...@haypocalc.com added the comment: Is it unclear to you what those mean? Well, it's clear, but I like when I can simply copy/paste the example and it does just work: If you post a high-quality self-contained example somewhere on the net, I would be happy to link to it. I just propose to change the example to stop the threads: -- def worker(): while True: item = q.get() if item is None: break do_work(item) q.task_done() q = Queue() threads = [] for i in range(num_worker_threads): t = Thread(target=worker) threads.append(t) t.start() for item in source(): q.put(item) q.join() # block until all tasks are done for i in range(num_worker_threads): q.put(None) for t in threads: t.join() -- -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12155 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6560] socket sendmsg(), recvmsg() methods
Gergely Kálmán kalman.gerg...@duodecad.hu added the comment: No, indeed this is a lot better. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6560 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8796] Deprecate codecs.open()
Changes by Marc-Andre Lemburg m...@egenix.com: -- title: Deprecate codecs.open(), codecs.StreamReader and codecs.StreamWriter - Deprecate codecs.open() ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8796 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12166] object.__dir__
New submission from Michael Foord mich...@voidspace.org.uk: Implementing a custom __dir__ method is fiddly because there is no way of obtaining the standard list of attributes that dir would return. Moving the relevant parts of the dir implementation into object.__dir__ would allow a custom __dir__ to obtain the standard list by calling up to the base class. See email discussion at: http://mail.python.org/pipermail/python-ideas/2011-May/010319.html -- messages: 136726 nosy: benjamin.peterson, michael.foord priority: normal severity: normal status: open title: object.__dir__ type: feature request versions: Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12166 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12100] Incremental encoders of CJK codecs reset the codec at each call to encode()
STINNER Victor victor.stin...@haypocalc.com added the comment: I think it's better to use a StringIO instance for the tests. For which test excatly? An encoder produces bytes, I don't the relation with StringIO. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12100 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12049] expose RAND_bytes() function of OpenSSL
Roundup Robot devnull@devnull added the comment: New changeset 5c716437a83a by Victor Stinner in branch 'default': Issue #12049: Add RAND_bytes() and RAND_pseudo_bytes() functions to the ssl http://hg.python.org/cpython/rev/5c716437a83a -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12049 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12049] expose RAND_bytes() function of OpenSSL
Changes by STINNER Victor victor.stin...@haypocalc.com: -- resolution: - fixed status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12049 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12167] test_packaging reference leak
New submission from Antoine Pitrou pit...@free.fr: Looks like either packaging or test_packaging forgets to clean up after itself: results for 9a16fa0c9548 on branch default test_packaging leaked [193, 193, 193] references, sum=579 -- assignee: tarek components: Distutils2, Tests messages: 136729 nosy: alexis, eric.araujo, pitrou, tarek priority: normal severity: normal stage: needs patch status: open title: test_packaging reference leak type: resource usage versions: Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12167 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12100] Incremental encoders of CJK codecs reset the codec at each call to encode()
Marc-Andre Lemburg m...@egenix.com added the comment: STINNER Victor wrote: STINNER Victor victor.stin...@haypocalc.com added the comment: I think it's better to use a StringIO instance for the tests. For which test excatly? An encoder produces bytes, I don't the relation with StringIO. Sorry, BytesIO in Python3-speak. In Python2 you'd use StringIO. -- title: Incremental encoders of CJK codecs reset the codec at each call to encode() - Incremental encoders of CJK codecs reset the codec at each call to encode() ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12100 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12028] threading._get_ident(): remove it in the doc or make it public
STINNER Victor victor.stin...@haypocalc.com added the comment: threading_get_ident.patch: make get_ident() public, replace threading._get_ident() by threading.get_ident(). According to this patch, get_ident() function *is* used: it is used by the logging and reprlib modules (and many tests). My patch avoids the usage of the low-level module, _thread_, in logging and reprlib. I adapted signal.pthread_kill() documentation to replace threading.current_thread().ident by threading.get_ident(). -- keywords: +patch Added file: http://bugs.python.org/file22089/threading_get_ident.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12028 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12167] test_packaging reference leak
Changes by Nadeem Vawda nadeem.va...@gmail.com: -- nosy: +nadeem.vawda ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12167 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12140] Crash upon start up
Philip Drew pwtd...@gmail.com added the comment: Ok, python now works in command prompt, but IDLE still wont run. Also, PYTHONHOME needs to be reset on every start up of command prompt. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12140 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12166] object.__dir__
Changes by Giampaolo Rodola' g.rod...@gmail.com: -- nosy: +giampaolo.rodola ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12166 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12089] regrtest.py doesn't check for unexpected output anymore?
STINNER Victor victor.stin...@haypocalc.com added the comment: @Antoine: What's your opinion? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12089 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11748] test_ftplib failure in test for source_address
Giampaolo Rodola' g.rod...@gmail.com added the comment: Is this fixed? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11748 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
