Re: Hello and sorry for disturbing !
in 722639 20140526 144904 Mark Lawrence breamore...@yahoo.co.uk wrote: On 26/05/2014 10:27, Radu Ioan Barbos wrote: Greetings from Romania,sorry for my english,i just wanted to ask you if i need any other software/program beside the one software from the next pagehttps://www.python.org/downloads/ https://www.python.org/downloads/ or is it enough the software on that page , download and install it ? This question goes for both windows 7 ubuntu (ubuntu). Il be waiting for your answer , thank you verry much ! Barbos Rau Timisoara,Romania ! As you've had answers to your questions I'll just say please don't apologise for your English, it's an extremely difficult language to learn. Thank you. You could have added that his English is already very good. :-) -- https://mail.python.org/mailman/listinfo/python-list
Re:Command prompt not shown when running Python script with subprocess on Windows
ps16thypresenceisfullnessof...@gmail.com Wrote in message: I have written a Python script with a wxPython GUI that uses subprocess.Popen to open a list of files that the user provides. One of my users would like to be able to run a Python script with my application. The Python script he is trying to run uses the command line and gets keyboard input from the user several times. The problem is that if the Python script is run on Windows with subprocess.Popen, no command prompt is shown (my GUI application is a .pyw file). The user's script runs silently but then does not quit because it is waiting for input, but there is no way for the input to be given, since there is no command prompt visible. I think this may be related to the fact that I am calling subprocess.Popen with shell=True. I tried calling it with shell=False (the default), but then I got an error that the file is not a valid Win32 application. I would appreciate any help with this problem. -- Timothy If you want to use shell=False, you need to specify the executable correctly. Since you're on Windows, the executable is named python.exe, not myscript. py If you still get errors, you need to get a lot more explicit. Copy/paste, not paraphrase. -- DaveA -- https://mail.python.org/mailman/listinfo/python-list
Re: Command prompt not shown when running Python script with subprocess on Windows
You need to call python.exe path-to-script.py, I think, not just path-to-script.py. See sys.executable (though that depends on if you're a frozen app or not). I can't be sure though because there's no code. Show code when asking questions, it helps frame the discussion and get a better answer ;) On Mon, May 26, 2014 at 5:03 PM, ps16thypresenceisfullnessof...@gmail.comwrote: I have written a Python script with a wxPython GUI that uses subprocess.Popen to open a list of files that the user provides. One of my users would like to be able to run a Python script with my application. The Python script he is trying to run uses the command line and gets keyboard input from the user several times. The problem is that if the Python script is run on Windows with subprocess.Popen, no command prompt is shown (my GUI application is a .pyw file). The user's script runs silently but then does not quit because it is waiting for input, but there is no way for the input to be given, since there is no command prompt visible. I think this may be related to the fact that I am calling subprocess.Popen with shell=True. I tried calling it with shell=False (the default), but then I got an error that the file is not a valid Win32 application. I would appreciate any help with this problem. -- Timothy -- https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
Python box (home-use smart router)
Home-use smart router is more and more popular. If Python Software Foundation embeds Python into such router, and develops a framework that has the following features: 1, allow power-down at any time 2, dynamic domain name 3, local storage support (SD cards or Hard Disk) 4, telnet server etc. Then we can create micro private server on it. Still can't see the full prospect, but it may be a great platform for people's imagination. I think Python is very suitable for such role. -- https://mail.python.org/mailman/listinfo/python-list
Check to see if the script has been previously used?
Hi, I was wondering if there was an extension or way that would allow me to print instructions if it is the first the the user has used the script. Thanks, KC -- https://mail.python.org/mailman/listinfo/python-list
Re: Check to see if the script has been previously used?
On Tue, May 27, 2014 at 5:45 PM, KC Sparks kcrspa...@gmail.com wrote: I was wondering if there was an extension or way that would allow me to print instructions if it is the first the the user has used the script. The trickiest part is defining the 'user'. Generally, this sort of thing is done by creating a file; if the file's not there, it's the first time. Some versions of sudo will create a file called .sudo_as_admin_successful in the user's home directory; others create /var/lib/sudo/username as a directory, and storing information there. Either technique works well for recognizing a first-time user. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Regular Expression for the special character | pipe
I would like to create a regular expression in which i can match the | special character too. e.g. start=|ID=ter54rt543d|SID=ter54rt543d|end=| I want to only |ID=ter54rt543d| from the above string but i am unable to write the pattern match containing | pipe too. By default python treat | as an OR operator. But in my case I want to use to as a part of search string. -- https://mail.python.org/mailman/listinfo/python-list
Re: Check to see if the script has been previously used?
Chris Angelico ros...@gmail.com Wrote in message: On Tue, May 27, 2014 at 5:45 PM, KC Sparks kcrspa...@gmail.com wrote: I was wondering if there was an extension or way that would allow me to print instructions if it is the first the the user has used the script. The trickiest part is defining the 'user'. Generally, this sort of thing is done by creating a file; if the file's not there, it's the first time. Some versions of sudo will create a file called .sudo_as_admin_successful in the user's home directory; others create /var/lib/sudo/username as a directory, and storing information there. Either technique works well for recognizing a first-time user. ChrisA The problem can be simpler if you're assuming a machine with only one user, or more complicated if the obvious disk location is either read-only to the user, or volatile. You also might want to clear all such flags upon an upgrade. If so, it's not just a file needed, but a sortable version string. Preferred approach is usually to respond to one of the conventional argv switches. And let the user decide. -- DaveA -- https://mail.python.org/mailman/listinfo/python-list
Re: Check to see if the script has been previously used?
On Tue, May 27, 2014 at 9:05 PM, Dave Angel da...@davea.name wrote: Preferred approach is usually to respond to one of the conventional argv switches. And let the user decide. Yes, this is a technique I've used when doing up important (and dangerous) MUD commands. The command will be something like unload foo and it gives its first-time spam, or unload confirm foo to suppress it and go straight to the potentially-dangerous action. With shell commands, a -f or --force parameter would be common for that. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Re: Regular Expression for the special character | pipe
2014-05-27 12:59 GMT+02:00 Aman Kashyap amankashyap1...@gmail.com: I would like to create a regular expression in which i can match the | special character too. e.g. start=|ID=ter54rt543d|SID=ter54rt543d|end=| I want to only |ID=ter54rt543d| from the above string but i am unable to write the pattern match containing | pipe too. By default python treat | as an OR operator. But in my case I want to use to as a part of search string. -- Hi, you can just escpape the pipe with backlash like any other metacharacter: rstart=\|ID=ter54rt543d be sure to use the raw string notation r..., or you can double all backslashes in the string. hth, vbr -- https://mail.python.org/mailman/listinfo/python-list
Re: Regular Expression for the special character | pipe
On Tuesday, 27 May 2014 16:39:19 UTC+5:30, Vlastimil Brom wrote: 2014-05-27 12:59 GMT+02:00 Aman Kashyap amankashyap1...@gmail.com: I would like to create a regular expression in which i can match the | special character too. e.g. start=|ID=ter54rt543d|SID=ter54rt543d|end=| I want to only |ID=ter54rt543d| from the above string but i am unable to write the pattern match containing | pipe too. By default python treat | as an OR operator. But in my case I want to use to as a part of search string. -- Hi, you can just escpape the pipe with backlash like any other metacharacter: rstart=\|ID=ter54rt543d be sure to use the raw string notation r..., or you can double all backslashes in the string. hth, vbr Thanks vbr for the quick response. I have string = |SOH=|ID=re65dgt5dd|DS=fjkjf|SDID=fhkhkf|ID=fkjfkf|EOM=| and want to replace 2 sub-strings |ID=re65dgt5dd| with |ID=MAN| |ID=fkjfkf| with |MAN| I am using regular expression ID=[a-z]*[0-9]*[a-z]*[0-9]*[a-z]*|$ the output is |SOH=|ID=MAN|DS=fjkjf|SDID=MAN|ID=MAN|EOM=|ID=MAN expected value is = |SOH=|ID=MAN|DS=fjkjf|SDID=fhkhkf|ID=MAN|EOM=| could you please help me in this regard? -- https://mail.python.org/mailman/listinfo/python-list
Re: Regular Expression for the special character | pipe
What about skipping the re and try this:
'start=|ID=ter54rt543d|SID=ter54rt543d|end=|'.split('|')[1][3:]
On 27.05.2014 14:09, Vlastimil Brom wrote:
2014-05-27 12:59 GMT+02:00 Aman Kashyap amankashyap1...@gmail.com:
I would like to create a regular expression in which i can match the |
special character too.
e.g.
start=|ID=ter54rt543d|SID=ter54rt543d|end=|
I want to only |ID=ter54rt543d| from the above string but i am unable to write the
pattern match containing | pipe too.
By default python treat | as an OR operator.
But in my case I want to use to as a part of search string.
--
Hi,
you can just escpape the pipe with backlash like any other metacharacter:
rstart=\|ID=ter54rt543d
be sure to use the raw string notation r..., or you can double all
backslashes in the string.
hth,
vbr
--
https://mail.python.org/mailman/listinfo/python-list
Re: Regular Expression for the special character | pipe
On Tuesday, 27 May 2014 16:59:38 UTC+5:30, Daniel wrote:
What about skipping the re and try this:
'start=|ID=ter54rt543d|SID=ter54rt543d|end=|'.split('|')[1][3:]
On 27.05.2014 14:09, Vlastimil Brom wrote:
2014-05-27 12:59 GMT+02:00 Aman Kashyap amankashyap1...@gmail.com:
I would like to create a regular expression in which i can match the |
special character too.
e.g.
start=|ID=ter54rt543d|SID=ter54rt543d|end=|
I want to only |ID=ter54rt543d| from the above string but i am unable to
write the pattern match containing | pipe too.
By default python treat | as an OR operator.
But in my case I want to use to as a part of search string.
--
Hi,
you can just escpape the pipe with backlash like any other metacharacter:
rstart=\|ID=ter54rt543d
be sure to use the raw string notation r..., or you can double all
backslashes in the string.
hth,
vbr
Thanks for the response.
I got the answer finally.
This is the regular expression to be
used:\\|ID=[a-z]*[0-9]*[a-z]*[0-9]*[a-z]*\\|
--
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Re: Regular Expression for the special character | pipe
On 27.05.2014 13:39, Aman Kashyap wrote: On 27.05.2014 14:09, Vlastimil Brom wrote: you can just escpape the pipe with backlash like any other metacharacter: rstart=\|ID=ter54rt543d be sure to use the raw string notation r..., or you can double all backslashes in the string. Thanks for the response. I got the answer finally. This is the regular expression to be used:\\|ID=[a-z]*[0-9]*[a-z]*[0-9]*[a-z]*\\| or, and more readable: r'\|ID=[a-z]*[0-9]*[a-z]*[0-9]*[a-z]*\|' This is what Vlastimil was talking about. It saves you from having to escape the backslashes. -- https://mail.python.org/mailman/listinfo/python-list
Re: How keep Python 3 moving forward
Le lundi 26 mai 2014 01:09:31 UTC+2, Mark Lawrence a écrit : On 25/05/2014 23:22, Dennis Lee Bieber wrote: On Sun, 25 May 2014 11:34:59 -0700, Ethan Furman et...@stoneleaf.us declaimed the following: On 05/25/2014 10:38 AM, Rustom Mody wrote: Your unicode is mojibaked Ethan! Voil�. You are hereby banished to a lonely island with python 1.5 and jmf for company :D 1.5 I could live with. :( Surely the company would count as cruel and unusual punishment? company... Or emergency rations? I suspect that chewing razor blades would be preferable to listening to the permanent rant about what's wrong with the FSR. -- My fellow Pythonistas, ask not what our language can do for you, ask what you can do for our language. === === It's just a mathematical absurdity. (No problems, to explain this to some other people, who are agreeing). jmf -- https://mail.python.org/mailman/listinfo/python-list
Re: Regular Expression for the special character | pipe
In article mailman.10370.1401191774.18130.python-l...@python.org, Wolfgang Maier wolfgang.ma...@biologie.uni-freiburg.de wrote: On 27.05.2014 13:39, Aman Kashyap wrote: On 27.05.2014 14:09, Vlastimil Brom wrote: you can just escpape the pipe with backlash like any other metacharacter: rstart=\|ID=ter54rt543d be sure to use the raw string notation r..., or you can double all backslashes in the string. Thanks for the response. I got the answer finally. This is the regular expression to be used:\\|ID=[a-z]*[0-9]*[a-z]*[0-9]*[a-z]*\\| or, and more readable: r'\|ID=[a-z]*[0-9]*[a-z]*[0-9]*[a-z]*\|' This is what Vlastimil was talking about. It saves you from having to escape the backslashes. Sometimes what I do, instead of using backslashes, I put the problem character into a character class by itself. It's a matter of personal opinion which way is easier to read, but it certainly eliminates all the questions about how many backslashes do I need? r'[|]ID=[a-z]*[0-9]*[a-z]*[0-9]*[a-z]*[|]' Another thing that can help make regexes easier to read is the VERBOSE flag. Basically, it ignores whitespace inside the regex (see https://docs.python.org/2/library/re.html#module-contents for details). So, you can write something like: pattern = re.compile(r'''[|] ID= [a-z]* [0-9]* [a-z]* [0-9]* [a-z]* [|]''', re.VERBOSE) Or, alternatively, take advantage of the fact that Python concatenates adjacent string literals, and write it like this: pattern = re.compile(r'[|]' r'ID=' r'[a-z]*' r'[0-9]*' r'[a-z]*' r'[0-9]*' r'[a-z]*' r'[|]' ) -- https://mail.python.org/mailman/listinfo/python-list
Re: Regular Expression for the special character | pipe
On 27/05/2014 12:39, Aman Kashyap wrote:
On Tuesday, 27 May 2014 16:59:38 UTC+5:30, Daniel wrote:
What about skipping the re and try this:
'start=|ID=ter54rt543d|SID=ter54rt543d|end=|'.split('|')[1][3:]
On 27.05.2014 14:09, Vlastimil Brom wrote:
2014-05-27 12:59 GMT+02:00 Aman Kashyap amankashyap1...@gmail.com:
I would like to create a regular expression in which i can match the |
special character too.
e.g.
start=|ID=ter54rt543d|SID=ter54rt543d|end=|
I want to only |ID=ter54rt543d| from the above string but i am unable to write the
pattern match containing | pipe too.
By default python treat | as an OR operator.
But in my case I want to use to as a part of search string.
--
Hi,
you can just escpape the pipe with backlash like any other metacharacter:
rstart=\|ID=ter54rt543d
be sure to use the raw string notation r..., or you can double all
backslashes in the string.
hth,
vbr
Thanks for the response.
I got the answer finally.
This is the regular expression to be
used:\\|ID=[a-z]*[0-9]*[a-z]*[0-9]*[a-z]*\\|
I'm pleased to see that you have answers. In return would you please
use the mailing list
https://mail.python.org/mailman/listinfo/python-list or read and action
this https://wiki.python.org/moin/GoogleGroupsPython to prevent us
seeing double line spacing and single line paragraphs, thanks.
--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.
Mark Lawrence
---
This email is free from viruses and malware because avast! Antivirus protection
is active.
http://www.avast.com
--
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Re: is there a list/group for beginners?
Hi, Deb. Ten years ago (or eleven?), I was completely new to Python. I could not begin to understand over 90 percent of what I was reading here in comp.lang.python. Still, I asked my newbie questions here. For the most part, I got excellent responses. I think you're in the right place. -- https://mail.python.org/mailman/listinfo/python-list
Re: Python is horribly slow compared to bash!!
On 2014-05-26, Dennis Lee Bieber wlfr...@ix.netcom.com wrote: On Mon, 26 May 2014 19:00:11 +0200, Johannes Bauer dfnsonfsdu...@gmx.de declaimed the following: Now let's all code Itanium assembler, yes? Naw... Let's beg Intel to bring back the iAPX-432, and beg AdaCore to port GNAT to it. When the '432 datasheets came out, everybody thought it was pretty cool. Turns out it just didn't go. So, Intel lowered its sights and concentrated on the 8086 family, and we all suffered for the next few decades as a result... -- Grant Edwards grant.b.edwardsYow! I smell like a wet at reducing clinic on Columbus gmail.comDay! -- https://mail.python.org/mailman/listinfo/python-list
Re: hashing strings to integers
On 2014-05-23, Chris Angelico wrote: On Fri, May 23, 2014 at 8:27 PM, Adam Funk a24...@ducksburg.com wrote: I've also used hashes of strings for other things involving deduplication or fast lookups (because integer equality is faster than string equality). I guess if it's just for deduplication, though, a set of byte arrays is as good as a set of int? Want a better way to do that? Use a set or dict and let Python do the hashing. It'll be every bit as fast as explicit hashing, plus you get the bonus of simplicity. Well, here's the way it works in my mind: I can store a set of a zillion strings (or a dict with a zillion string keys), but every time I test if new_string in seen_strings, the computer hashes the new_string using some kind of short hash, checks the set for matching buckets (I'm assuming this is how python tests set membership --- is that right?), then checks any hash-matches for string equality. Testing string equality is slower than integer equality, and strings (unless they are really short) take up a lot more memory than long integers. So for that kind of thing, I tend to store MD5 hashes or something similar. Is that wrong? -- With the breakdown of the medieval system, the gods of chaos, lunacy, and bad taste gained ascendancy. --- Ignatius J Reilly -- https://mail.python.org/mailman/listinfo/python-list
Re: hashing strings to integers
On 2014-05-23, Terry Reedy wrote: On 5/23/2014 6:27 AM, Adam Funk wrote: that. The only thing that really bugs me in Python 3 is that execfile has been removed (I find it useful for testing things interactively). The spelling has been changed to exec(open(...).read(), ... . It you use it a lot, add a customized def execfile(filename, ... to your site module or local utils module. Are you talking about this? https://docs.python.org/3/library/site.html Is there a dummies/quick-start guide to using USER_SITE stuff? -- No sport is less organized than Calvinball! -- https://mail.python.org/mailman/listinfo/python-list
python
Need of python in embedded systems??? -- https://mail.python.org/mailman/listinfo/python-list
Re: hashing strings to integers
On Tue, 27 May 2014 16:13:46 +0100, Adam Funk wrote: On 2014-05-23, Chris Angelico wrote: On Fri, May 23, 2014 at 8:27 PM, Adam Funk a24...@ducksburg.com wrote: I've also used hashes of strings for other things involving deduplication or fast lookups (because integer equality is faster than string equality). I guess if it's just for deduplication, though, a set of byte arrays is as good as a set of int? Want a better way to do that? Use a set or dict and let Python do the hashing. It'll be every bit as fast as explicit hashing, plus you get the bonus of simplicity. Well, here's the way it works in my mind: I can store a set of a zillion strings (or a dict with a zillion string keys), but every time I test if new_string in seen_strings, the computer hashes the new_string using some kind of short hash, checks the set for matching buckets (I'm assuming this is how python tests set membership --- is that right?), So far so good. That applies to all objects, not just strings. then checks any hash-matches for string equality. Testing string equality is slower than integer equality, and strings (unless they are really short) take up a lot more memory than long integers. But presumably you have to keep the string around anyway. It's going to be somewhere, you can't just throw the string away and garbage collect it. The dict doesn't store a copy of the string, it stores a reference to it, and extra references don't cost much. As for string equality, in pseudo-code it looks something like this: def __eq__(self, other): # Consider only the case where other is a string as well. if self is other: # object identity return True if len(self) != len(other): # checking the length is fast return False # iterate over both strings in lock-step for a in self, b in other: if a != b: return False return True only written in fast C code. So the equality test bails out as quickly as possible, and the only time you have to look at every character is if the two strings are equal but not the same object. MD5 hashing, on the other hand, *always* has to look at every character, and perform quite a complicated set of computations. It's expensive. So for that kind of thing, I tend to store MD5 hashes or something similar. Is that wrong? First rule of optimization: Don't do it. Second rule of optimization (for experts only): Don't do it yet. You're making the cardinal mistake of optimization, not what is slow, but what you *assume* will be slow. (Or, replace memory consumption for speed if you prefer.) Python is not C, and your intuitions for what's fast and slow (low and high memory consumption) are likely to be way off. Consider trying to store an MD5 hash instead of the string Hello World!. If I try this in Python 2.7, I get this: py import md5, sys py s = Hello World! py n = int(md5.md5(s).hexdigest(), 16) py sys.getsizeof(s) 33 py sys.getsizeof(n) 30 I save a lousy 3 bytes. But in order to save that 3 bytes, I have to generate an md5 object (32 bytes) and a hex string (53 bytes), both of which take time to create and then time to garbage collect. Actually, I don't even save those 3 bytes, since for nearly all reasonable applications, I'll need to keep the string around somewhere. So instead of saving three bytes, it's costing me thirty bytes for the hash, plus who-knows-what needed to manage the book keeping to link that hash to the actual string. Ah, but maybe we can save time hashing them? py from timeit import Timer py setup = from __main__ import s, n py t1 = Timer(hash(s), setup) py t2 = Timer(hash(n), setup) py min(t1.repeat(5)) 0.14668607711791992 py min(t2.repeat(5)) 0.15973114967346191 Times are in seconds for one million iterations of the code being timed. Or alternatively, it costs about 0.14 microseconds to hash the string, and about 0.15 microseconds to hash the MD5 hash. **Not** to calculate the MD5 hash in the first place, that takes *much* longer: py t3 = Timer(md5.md5(s).hexdigest(), import md5; s = 'Hello World!') py min(t3.repeat(5)) 2.3326950073242188 but merely to perform a lightweight hash on the long int so as to find which bucket of the dict it belongs to. So, yes, chances are **very** good that you're supposed optimizations in this area are actually pessimizations. If you have not measured where the bottlenecks in your code are, you have no idea which parts of the code need to be optimized. Now, it is conceivable that there may be some circumstances where your strategy makes sense. I'm guessing you would need something like this before you even come close to saving memory and/or time: - rather than short keys like Hello World!, you are dealing with keys that are typically many tens of thousands of characters long; - most of the strings are the same length and have very similar prefixes (e.g. the first
Re: hashing strings to integers
On Wed, May 28, 2014 at 3:02 AM, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: But I know that Python is a high-level language with lots of high-level data structures like dicts which trade-off time and memory for programmer convenience, and that I'd want to see some real benchmarks proving that my application was too slow before giving up that convenience with a complicated strategy like this. And they trade off that time and memory on the basis of X years of development expertise. A while ago (about ten years or so, now... wow, that's quite a while) I wrote a C++ program that needed an ever-growing array; for simplicity, I went with a very basic system of doubling the size every time, from a base of something like 1024 or 8192. (Note that it was storing and moving around only pointers, so it's comparable to Python's list.) That means it has an average 25% slack space at all times, more until its first allocation, and every now and then it has a huge job of copying a pile of pointers into a new array. (Imagine it's now at 16777216 and it needs to add the 16,777,217th string to the array. Bye-bye CPU caches.) These boundaries became *user-visible pauses*, fortunately at predictable points, but on a not-terrible computer it could cause a 1s pause just copying heaps of pointers. How do you think a Python list will perform, under the same workload (periodic appending of single strings or small groups of strings, very frequent retrieval based on index - probably about a 20:1 read:write ratio)? Not only would it be far more convenient, it's probably going to outperform my hand-rolled code - unless I'm so brilliant (or lucky) that I can stumble to something as good as can be achieved with years of dedicated development. Yeah, I don't think so. Same goes for hashing algorithms. I can at least boast that I've never written one of those... although I have several times written a binary tree of one form or another, in order to provide comparable features to a dict. And once again, now that I know how convenient and performant high level languages can be (which may or may not have been true 15 years ago, but I certainly didn't know it), I don't rewrite what can be done better by just tossing in a couple of curly braces and saying here, map this to that. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
help with memory leak
I'm trying to track down a memory leak in a fairly large code. It uses a lot
of
numpy, and a bit of c++-wrapped code. I don't yet know if the leak is purely
python or is caused by the c++ modules.
At each iteration of the main loop, I call gc.collect()
If I then look at gc.garbage, it is empty.
I've tried using objgraph. I don't know how to interpret the result. I don't
know if this is the main leakage, but I see that each iteration there are more
'Burst' objects. If I look at backrefs to them using this code:
for frame in count(1): ## main loop starts here
gc.collect()
objs = objgraph.by_type('Burst')
print(objs)
if len (objs) != 0:
print(objs[0], gc.is_tracked (objs[0]))
objgraph.show_backrefs(objs[0], max_depth=10, refcounts=True)
I will get a graph like that attached
A couple of strange things.
The refcounts (9) of the Burst object don't match the number of arrows into it.
There are 2 lists with 0 refs. Why weren't they collected?--
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Re: Hello and sorry for disturbing !
Rustom Mody rustompm...@gmail.com writes: For ubuntu you should need nothing for python. In other words python should run on a basic ubuntu installation. From the shell just type python and the interpreter should start. For more specialized work there are dozens (maybe hundreds?) of packages in the apt repos. % apt-cache show pythonTABTAB Display all 2776 possibilities? (y or n) -- https://mail.python.org/mailman/listinfo/python-list
Re: Hello and sorry for disturbing !
I recommend to install PyCharm -- https://mail.python.org/mailman/listinfo/python-list
Re: Hello and sorry for disturbing !
I recommend you to install PyCharm -- https://mail.python.org/mailman/listinfo/python-list
Re: Hello and sorry for disturbing !
I recommend you to install PyCharm -- https://mail.python.org/mailman/listinfo/python-list
Re: Hello and sorry for disturbing !
On Wed, May 28, 2014 at 5:56 AM, giacomo boffi pec...@pascolo.net wrote: Rustom Mody rustompm...@gmail.com writes: For ubuntu you should need nothing for python. In other words python should run on a basic ubuntu installation. From the shell just type python and the interpreter should start. For more specialized work there are dozens (maybe hundreds?) of packages in the apt repos. % apt-cache show pythonTABTAB Display all 2776 possibilities? (y or n) Not quite fair, as some of those exist in multiple forms (python-* and python3-*, or -dbg and -dev as well as the base package, or the package-and-subpackage model of large stuff like python-django-*), and on Debian Wheezy I have only (only!) 1890. But yep, that is a lot of packages available in apt. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Re: help with memory leak
On Wed, May 28, 2014 at 5:56 AM, Neal Becker ndbeck...@gmail.com wrote: I'm trying to track down a memory leak in a fairly large code. It uses a lot of numpy, and a bit of c++-wrapped code. I don't yet know if the leak is purely python or is caused by the c++ modules. Something to try, which would separate the two types of leak: Run your program in a separate namespace of some sort (eg a function), make sure all your globals have been cleaned up, run a gc collection, and then see if you still have a whole lot more junk around. If that cleans everything up, it's some sort of refloop; if it doesn't, it's either a global you didn't find, or a C-level refleak. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Re: Python box (home-use smart router)
On 2014-05-27 15:33, animalize81 wrote: Home-use smart router is more and more popular. If Python Software Foundation embeds Python into such router, and develops a framework that has the following features: 1, allow power-down at any time 2, dynamic domain name 3, local storage support (SD cards or Hard Disk) 4, telnet server etc. Then we can create micro private server on it. It certainly can. I've got a Buffalo router here that runs a stripped-down version of Linux and has Python installed on it. No need for the PSF to get involved because people are already creating these without them. I know that a lot of folks use an old router and put OpenWRT, DD-WRT, or Tomato firmware on them. This would give you a Linux platform on which you can install Python, usually telnet (or more likely, SSH) support, and can be integrated with a number of dynamic-DNS services. You could even grab a Raspberry Pi (model B with ethernet), add a USB ethernet adaptor, and you'd have a pretty nice machine with 512MB of RAM (the router platforms don't usually have more than ~64MB of RAM), two ethernet ports for routing, and would support SD or USB drives. -tkc -- https://mail.python.org/mailman/listinfo/python-list
Re: Hello and sorry for disturbing !
On 27/05/2014 21:02, maksu...@gmail.com wrote: I recommend to install PyCharm Three copies in three minutes of one line with no context, that's a record, congratulations :) -- My fellow Pythonistas, ask not what our language can do for you, ask what you can do for our language. Mark Lawrence --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com -- https://mail.python.org/mailman/listinfo/python-list
Re: python
On 2014-05-27 08:43, himanshul...@gmail.com wrote: Need of python in embedded systems??? Define embedded. I've got a couple small low-powered devices here (a Digi ConnectPort, a Raspberry Pi, a low-end 32-bit system with 32MB of RAM) all of which run Python. It might be trickier if you're talking about some super low-end hardware where you don't have a memory management unit, a full-fledged OS. -tkc -- https://mail.python.org/mailman/listinfo/python-list
Re: is there a list/group for beginners?
-Original Message- From: john_lada...@sbcglobal.net Sent: Tue, 27 May 2014 11:38:39 -0700 (PDT) To: python-list@python.org Subject: Re: is there a list/group for beginners? Hi, Deb. Ten years ago (or eleven?), I was completely new to Python. I could not begin to understand over 90 percent of what I was reading here in comp.lang.python. Still, I asked my newbie questions here. For the most part, I got excellent responses. I think you're in the right place. -- https://mail.python.org/mailman/listinfo/python-list thanks,John. I guess I was/am afraid to embarrass myself on this list, but then I accidentally posted a question meant for the tutor list and ended up getting more for my money than I expected :). I really appreciate that the people on this list are so friendly and willing to help. FREE 3D EARTH SCREENSAVER - Watch the Earth right on your desktop! Check it out at http://www.inbox.com/earth -- https://mail.python.org/mailman/listinfo/python-list
Re: is there a list/group for beginners?
On Wed, May 28, 2014 at 7:38 AM, Deb Wyatt codemon...@inbox.com wrote: thanks,John. I guess I was/am afraid to embarrass myself on this list, but then I accidentally posted a question meant for the tutor list and ended up getting more for my money than I expected :). I really appreciate that the people on this list are so friendly and willing to help. Asking newbie questions isn't going to get you flamed here, we're pretty friendly :) Anyway, we're all newbies in whatever areas we haven't actually dug into. (I denewbified myself in Flask just last week, and there's plenty more of Python that I've never touched.) So go for it, ask those questions! Reveal your ignorance. Let us reveal ours, as we make errors in responses. And by the end of the thread, all the errors will have been corrected and the ignorance cured... and we'll all have learned. That, in my books, is a recipe for an awesome thread. Bring it on! ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Re: Command prompt not shown when running Python script with subprocess on Windows
Sorry for not being explicit enough. I am aware that this would work if I called python.exe path-to-script.py with shell=False. In my Python program, I parse an XML file like the one I have included below. Then I loop through the paths of the apps listed in it and run them by calling something like this: for app_path in app_paths: args = shlex.split(app_path.replace(\\, )) args = [arg.replace(, \\) for arg in args] args[0] = os.path.expandvars(args[0]) subprocess.Popen(args, shell='__WXMSW__' in wx.PlatformInfo) I want users to be able to enter paths in the XML file exactly the way they would be entered in a Windows shortcut. Since it is possible to make a Windows shortcut for path-to-script.py without the python.exe in front of it and have it open in its own command prompt, I want to be able to do the same thing in my XML file, but this is what I cannot figure out. By the way, is there a simpler way to use shlex.split and return valid Windows paths than the way I am doing (as shown above)? Thank you. -- Timothy *** Contents of app_list.xml below *** ?xml version='1.0' encoding='utf-8'? apps app name=Mozilla Firefox%ProgramFiles%\Mozilla Firefox\firefox.exe/app app name=Mozilla Thunderbird%ProgramFiles%\Mozilla Thunderbird\thunderbird.exe/app app name=LibreOffice Writer%ProgramFiles%\LibreOffice 4\program\swriter.exe C:\Users\Timothy\Documents\myfile.odt/app app name=**Python script**C:\Users\Timothy\Documents\Python\myscript.py/app /apps -- https://mail.python.org/mailman/listinfo/python-list
Re: hashing strings to integers
On Tue, 27 May 2014 17:02:50 +, Steven D'Aprano wrote: - rather than zillions of them, there are few enough of them that the chances of an MD5 collision is insignificant; (Any MD5 collision is going to play havoc with your strategy of using hashes as a proxy for the real string.) - and you can arrange matters so that you never need to MD5 hash a string twice. Hmmm... I'll use the MD5 hashes of the strings as a key, and the strinsgs as the value (to detect MD5 collisions) ... (But I'm sure that Steven was just waiting for someone to take that bait...) -- https://mail.python.org/mailman/listinfo/python-list
Re: Command prompt not shown when running Python script with subprocess on Windows
On 28/05/2014 00:01, ps16thypresenceisfullnessof...@gmail.com wrote: I want users to be able to enter paths in the XML file exactly the way they would be entered in a Windows shortcut. Since it is possible to make a Windows shortcut for path-to-script.py without the python.exe in front of it and have it open in its own command prompt, I want to be able to do the same thing in my XML file, but this is what I cannot figure out. Anything done through shortcuts is making use of the Windows Shell API. To mimic that behaviour, you could try using that; in this case, ShellExecute[Ex]. For simple purposes, this is exposed in Python as os.startfile. If you need more control, you'd have to use the API call directly, either via ctypes or via the pywin32 libraries under the win32com.shell package. To mimic the behaviour exactly (if that is a requirement), you could actually create a temporary shortcut with the desired information and invoke it via os.startfile. I haven't followed the thread (and I'm offline at the moment) so I'll wait until I've seen it before I comment on the shlex.split / \\ dance above. On the surface, though, I'm not sure what it's achieving. [All right, I didn't wait :)]. TJG -- https://mail.python.org/mailman/listinfo/python-list
[issue16638] support multi-line docstring signatures in IDLE calltips
Terry J. Reedy added the comment: As I said previously, the only reason for the change was get all the docstring signature lines for builtins, after they were changed from 1 to many. I was not thrilled with having to do this. However, I felt that just presenting the arbitrary first of many lines was (and would be) a bug. For 3.4+, this is a temporary measure until Argument Clinic is applied to enough builtins to make it sensible to switch calltips to using str(inspect.signature). See #19903. When A.C. is applied to a function, the signature is no longer in the docstring, which instead starts with 'Returns (or whatever) just as for python-coded functions. Since A.C. and #19903 do not apply to 2.7, feel free to develop a more permanent alternative for 2.7. Perhaps just say expand multiple line signature and have a click on that line do the expansion instead of dismissing the box. If you do, I can check whether the A.C conversion has been slow enough to make temporary application to 3.4 worthwhile, or if *really* slow, to 3.5. The click idea, while still needed, might be combined with using .signature, but I have to recheck its current behavior. -- assignee: terry.reedy - type: behavior - enhancement versions: -Python 3.3, Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16638 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21477] Idle: improve idle_test.htest
Roundup Robot added the comment: New changeset 72a8a107eed1 by Terry Jan Reedy in branch '2.7': Issue #21477: Idle htest: modify run; add more tests. http://hg.python.org/cpython/rev/72a8a107eed1 -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21477 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21498] configparser accepts keys beginning with comment_chars when writing
Changes by Łukasz Langa luk...@langa.pl: -- assignee: - lukasz.langa ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21498 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10203] sqlite3.Row doesn't support sequence protocol
Serhiy Storchaka added the comment: Compare with tuple: (1, 2)[2**1000] Traceback (most recent call last): File stdin, line 1, in module IndexError: cannot fit 'int' into an index-sized integer -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10203 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21477] Idle: improve idle_test.htest
Roundup Robot added the comment: New changeset e770d8c4291c by Terry Jan Reedy in branch '2.7': Issue #21477: Add htests for Search and Replace dialogs. http://hg.python.org/cpython/rev/e770d8c4291c New changeset b8e4bb1e1090 by Terry Jan Reedy in branch '3.4': Issue #21477: Add htests for Search and Replace dialogs. http://hg.python.org/cpython/rev/b8e4bb1e1090 -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21477 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10203] sqlite3.Row doesn't support sequence protocol
Claudiu.Popa added the comment: Thanks. Patch modified. -- Added file: http://bugs.python.org/file35376/issue10203_2.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10203 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21477] Idle: improve idle_test.htest
Terry J. Reedy added the comment: I think it time to make running through all or just some of the tests more pleasant. If we reversed the order [next], [test name], test instruction, then [next] would not just up and down. If the window were set to a constant width, then it would not jump back and forth either. The width should be just wide enough for the longest lines we use in htest.py, or can we just allow them to wrap? To select just a one or a few tests (like just Search, Replace, and Tree for the 2605.. patch), a drop down list box would be nice. It could be beside the next box. With a constant width, there would be room. Doing the test reminded me that Search (find) and Replace have a severe bug on Windows of not highlighting the the found text while the box is still open. There was an issue where this was supposedly fixed, but it is not. Find is usable by closing the box and using cntl-G for find next. But this does not work for replace, making replace useless on windows unless one is really sure about replace all. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21477 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21477] Idle: improve idle_test.htest
Terry J. Reedy added the comment: Ned, I recently saw that some of the builtin extensions call macosxsupport. I though then that it would be better if such calls were somehow handled automatically. I have no idea how and when to make them and so I don't know if the existing calls are needed or if other calls should be added. So I like your idea. It seems like it should be a separate issue. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21477 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21468] NNTPLib connections become corrupt after long periods of activity
James Meneghello added the comment: Yeah, I didn't have a lot of time so I chose just to work around it. When I get a chance I'll have a better look. Good point: I didn't think to try it with SSL off (SSL is enabled for all connections by default with this application). I'll test this and see if it still breaks. I tested it with 3.2.5, 3.3.2, 3.4.0a (was the latest at the time) on Ubuntu 64-bit. As said, didn't encounter the same problems with those versions on Windows 8 64-bit. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21468 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16099] robotparser doesn't support request rate and crawl delay parameters
Nikolay Bogoychev added the comment: Updated patch, all comments addressed, sorry for the 6 months delay. Please review -- Added file: http://bugs.python.org/file35377/robotparser_v3.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16099 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16446] pdb raises BdbQuit on 'quit' when started with set_trace
Richard Marko added the comment: Would be nice to have this commited as without this change -if self.quitting: -return # None +if not self.botframe: +self.botframe = frame it's not possible to quit Bdb (and the code it's executing) as it just returns and doesn't raise BdbQuit. -- nosy: +rmarko ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16446 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14776] Add SystemTap static markers
Bohuslav Slavek Kabrda added the comment: @jcea: So here is my proposal for dealing with this: let's take what I currently have (e.g. tracepoints for function entry/function exit) and extend my patch to also work with DTrace in a similar fashion. Then, when we have a working patch for both Systemtap and DTrace, we can start adding more tracepoints as needed/as we see fit. Sounds good? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14776 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14776] Add SystemTap static markers
Jesús Cea Avión added the comment: Could you possibly create a new issue and add me to its NOSY? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14776 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21589] Use better idiom in unittest example
New submission from Claudiu.Popa: Hello. This patch proposes using `assertIn` in the first unittest example, instead of `assertTrue(x in seq)`. This is clearer and recommending it first is better for beginners. -- assignee: docs@python components: Documentation files: unittest_better_idiom.patch keywords: patch messages: 219216 nosy: Claudiu.Popa, docs@python priority: normal severity: normal status: open title: Use better idiom in unittest example type: enhancement versions: Python 3.5 Added file: http://bugs.python.org/file35378/unittest_better_idiom.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21589 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21589] Use better idiom in unittest example
Ezio Melotti added the comment: This is a duplicate of #11468. -- nosy: +ezio.melotti, rhettinger resolution: - duplicate stage: - resolved status: open - closed superseder: - Improve unittest basic example in the doc ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21589 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11468] Improve unittest basic example in the doc
Changes by Berker Peksag berker.pek...@gmail.com: -- versions: +Python 3.5 -Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11468 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20689] socket.AddressFamily is absent in html pydoc
Vajrasky Kok added the comment: I found the culprit. The AddressFamily is not registered in _socket module. I created a preliminary patch to show the culprit. -- keywords: +patch nosy: +vajrasky Added file: http://bugs.python.org/file35379/pydoc_display_AddressFamily.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20689 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21590] Systemtap and DTrace support
New submission from Bohuslav Slavek Kabrda: This is a tracking bug for development of combined systemtap and dtrace patch for Python. The separate patches were submitted at [1] (systemtap) and [2] (dtrace). Since it was agreed that it'd be best to merge the two patches to reuse as much code as possible between them, I'm opening this issue to track the progress and discuss possible improvements and suggestions. [1] http://bugs.python.org/issue14776 [2] http://bugs.python.org/issue13405 -- components: Interpreter Core messages: 219219 nosy: bkabrda, jcea priority: normal severity: normal status: open title: Systemtap and DTrace support type: enhancement versions: Python 3.5 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21590 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14776] Add SystemTap static markers
Bohuslav Slavek Kabrda added the comment: I opened a bug for tracking progress of development of the combined dtrace and systemtap support: http://bugs.python.org/issue21590 -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14776 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13405] Add DTrace probes
Bohuslav Slavek Kabrda added the comment: I opened a bug for tracking progress of development of the combined dtrace and systemtap support: http://bugs.python.org/issue21590 -- nosy: +bkabrda ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13405 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21590] Systemtap and DTrace support
Jesús Cea Avión added the comment: Bohuslav, do you have Jabber/XMPP?. Mine is j...@jabber.org. This thing will require real time communication. I rather prefer XMPP/Jabber, but I could accept IRC :-) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21590 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20689] socket.AddressFamily is absent in html pydoc
Changes by Berker Peksag berker.pek...@gmail.com: -- nosy: -berker.peksag ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20689 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21590] Systemtap and DTrace support
Changes by Dave Malcolm dmalc...@redhat.com: -- nosy: +dmalcolm ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21590 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21235] importlib's spec module create algorithm is not exposed
Brett Cannon added the comment: I'm not torn so let that settle your torment. =) Considering we are talking about the standard library for a language that has a mantra of explicit is better than implicit I think worrying about an added line to very little code since so few people muck with this stuff is enough to not worry about it. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21235 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20383] Add a keyword-only spec argument to types.ModuleType
Brett Cannon added the comment: Why do you want a one-liner wrapper for the functions for the public API when they are exactly the same? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20383 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21581] Consider dropping importlib.abc.Loader.create_module()
Brett Cannon added the comment: This issue is not talking about dropping create_module() from the algorithm (I need it for the lazy loader), just from the ABC since it's a do-nothing implementation that doesn't have to be there. Otherwise it should be made a required method and possibly even not have its ``return None`` special-casing. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21581 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20689] socket.AddressFamily is absent in html pydoc
STINNER Victor added the comment: I found the culprit. The AddressFamily is not registered in _socket module. I created a preliminary patch to show the culprit. That's not surprising, this type is created in socket (socket.py), not in _socket (the C module). Your patch is wrong. -- nosy: +haypo ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20689 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21539] pathlib's Path.mkdir() should allow for mkdir -p functionality
Changes by Barry A. Warsaw ba...@python.org: -- nosy: +barry ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21539 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21539] pathlib's Path.mkdir() should allow for mkdir -p functionality
Barry A. Warsaw added the comment: I've just been writing some new code to use pathlib and ran into this one myself. An exist_ok=False is fine, although it's a slight shame that for backward compatibility we can't adopt os.makedirs() signature exactly. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21539 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18807] Allow venv to create copies, even when symlinks are supported
Dominic Cerquetti added the comment: Requesting re-open of this issue, using --closes to force no symlinks to be created still results in venv trying to create symlinks. I'm using Python 3.4 with the following command inside a vagrant Ubuntu 14.04 virtualbox image. The folder is a SMB mount from a windows host, which does not allow symlinks. Expected behavior: os.symlink() is never called when you run: python3.4 -m venv --copies Actual behavior: os.symlink() is still called in a few places such as: http://hg.python.org/cpython/file/b8e4bb1e1090/Lib/venv/__init__.py line: 147 line: 215 I have a fix for line 215 that I'm testing now (basically just need to call copier() instead of os.symlink()). I don't want to mess with line 147 due to it being OSX specific and I have no way to test it. But in theory it should also just be a call to copier() -- nosy: +Dominic.Cerquetti ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18807 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20383] Add a keyword-only spec argument to types.ModuleType
Eric Snow added the comment: You're right that it doesn't have to be a one-line wrapper or anything more than an import-from in importlib.util. :) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20383 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21578] Misleading error message when ImportError called with invalid keyword args
Berker Peksag added the comment: Thanks for the review, Eric. Here's a new patch. -- Added file: http://bugs.python.org/file35381/issue21578_v2.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21578 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16446] pdb raises BdbQuit on 'quit' when started with set_trace
Xavier de Gaye added the comment: Yes the patch does change the semantics of the quit command: * no change when pdb is run as a script or with 'python -m pdb script_name'. As stated in the doc, the 'quit command': Quit from the debugger. The program being executed is aborted. * but when a set_trace() breakpoint is inserted, 'quit' just terminates the debugger and the program continues its execution. It is the purpose of the patch to prevent an inconvenient crash with BdbQuit in that case. The idea is that the hard-coded breakpoint was set to investigate a local problem and one may want to let it run afterwards (for example to check its behavior after having changed some its internal state with pdb). Sorry, I should have documented that behavior change. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16446 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21439] Numerous minor issues in Language Reference
Zachary Ware added the comment: A few comments on the committed patch. The quoted diff is trimmed to just the hunks I have comments on. On Tue, May 27, 2014 at 12:21 AM, raymond.hettinger python-check...@python.org wrote: diff --git a/Doc/reference/compound_stmts.rst b/Doc/reference/compound_stmts.rst --- a/Doc/reference/compound_stmts.rst +++ b/Doc/reference/compound_stmts.rst @@ -170,17 +170,25 @@ A :keyword:`break` statement executed in the first suite terminates the loop without executing the :keyword:`else` clause's suite. A :keyword:`continue` statement executed in the first suite skips the rest of the suite and continues -with the next item, or with the :keyword:`else` clause if there was no next +with the next item, or with the :keyword:`else` clause if there is no next item. -The suite may assign to the variable(s) in the target list; this does not affect -the next item assigned to it. +The for-loop makes assignments to the variables(s) in the target list. +This overwrites all previous assignments to those variables including +those made in the suite of the for-loop:: + + for i in range(10): + print(i) + i = 5 # this will not affect the for-loop + # be i will be overwritten with the next Typo here, looks like an unfinished thought. because rather than be? + # index in the range + .. index:: builtin: range Names in the target list are not deleted when the loop is finished, but if the -sequence is empty, it will not have been assigned to at all by the loop. Hint: +sequence is empty, they will not have been assigned to at all by the loop. Hint: the built-in function :func:`range` returns an iterator of integers suitable to emulate the effect of Pascal's ``for i := a to b do``; e.g., ``list(range(3))`` returns the list ``[0, 1, 2]``. diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst --- a/Doc/reference/expressions.rst +++ b/Doc/reference/expressions.rst @@ -520,11 +521,11 @@ The primary must evaluate to an object of a type that supports attribute references, which most objects do. This object is then asked to produce the -attribute whose name is the identifier (which can be customized by overriding -the :meth:`__getattr__` method). If this attribute is not available, the -exception :exc:`AttributeError` is raised. Otherwise, the type and value of the -object produced is determined by the object. Multiple evaluations of the same -attribute reference may yield different objects. +attribute whose name is the identifier. This production can be customized by +overriding the :meth:`__getattr__` method). If this attribute is not available, Orphaned ')' on this line. +the exception :exc:`AttributeError` is raised. Otherwise, the type and value of +the object produced is determined by the object. Multiple evaluations of the +same attribute reference may yield different objects. .. _subscriptions: @@ -1244,10 +1245,9 @@ lambda_expr: lambda [`parameter_list`]: `expression` lambda_expr_nocond: lambda [`parameter_list`]: `expression_nocond` -Lambda expressions (sometimes called lambda forms) have the same syntactic position as -expressions. They are a shorthand to create anonymous functions; the expression -``lambda arguments: expression`` yields a function object. The unnamed object -behaves like a function object defined with :: +Lambda expressions (sometimes called lambda forms) are create anonymous Unfinished thought here; are create - are used to create? +functions. The expression ``lambda arguments: expression`` yields a function +object. The unnamed object behaves like a function object defined with :: While we're here, the object is in fact named, its name (__name__) is lambda. It's not a valid identifier, but it is its name. def lambda(arguments): return expression @@ -1310,13 +1310,15 @@ .. index:: pair: operator; precedence -The following table summarizes the operator precedences in Python, from lowest +The following table summarizes the operator precedence in Python, from lowest This sentence still doesn't read correctly to me; the simplest fix that makes sense to my brain is to remove the (... summarizes operator precedence ...). I would welcome any other better wording. precedence (least binding) to highest precedence (most binding). Operators in the same box have the same precedence. Unless the syntax is explicitly given, operators are binary. Operators in the same box group left to right (except for -comparisons, including tests, which all have the same precedence and chain from -left to right --- see section :ref:`comparisons` --- and exponentiation, which -groups from right to left). +exponentiation, which groups from right to left). + +Note that comparisons, membership tests, and identity tests,
[issue20689] socket.AddressFamily is absent in html pydoc
Serhiy Storchaka added the comment: Ah, now I see what is wrong. Actually AddressFamily is missing in text output of pydoc too. Because AddressFamily is not included in the __all__ list. SocketType is included, but this is different SocketType, SocketType from _socket (see issue20386). Here is a patch which fixes this issue. -- assignee: - serhiy.storchaka stage: - patch review versions: +Python 3.5 Added file: http://bugs.python.org/file35380/socket__all__.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20689 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21439] Numerous minor issues in Language Reference
Changes by Zachary Ware zachary.w...@gmail.com: -- stage: test needed - commit review ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21439 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20689] socket.AddressFamily is absent in pydoc output
Changes by Serhiy Storchaka storch...@gmail.com: -- title: socket.AddressFamily is absent in html pydoc - socket.AddressFamily is absent in pydoc output ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20689 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20689] socket.AddressFamily is absent in pydoc output
STINNER Victor added the comment: I suggested to not document new enums of the socket module (ex: AddressFamily, SocketType) when they were added. I don't think that they should be part of Python public API. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20689 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20140] UnicodeDecodeError in ntpath.py when home dir contains non-ascii signs
honglei jiang added the comment: Python：canopy-1.3.0.1715.win-x86_64\ OS：Win8.1 64 directory 'F:\\Flask\\EmberJS\\\xd6\xd0\xce\xc4\\Prj\\static' os.path.isdir(directory) True filename u'todomvc/architecture-examples/angularjs/index.html' os.path.join(directory,filename) Traceback (most recent call last): File c:\Users\honglei\AppData\Local\Enthought\Canopy\User\Lib\site-packages\flask\helpers.py, line 1, in module # -*- coding: utf-8 -*- File C:\Users\honglei\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.3.0.1715.win-x86_64\Lib\ntpath.py, line 108, in join path += \\ + b UnicodeDecodeError: 'ascii' codec can't decode byte 0xd6 in position 17: ordinal not in range(128) f=os.path.join(directory.decode(sys.getfilesystemencoding()),filename) os.path.isfile(f) True -- nosy: +jhonglei ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20140 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11468] Improve unittest basic example in the doc
Changes by Zachary Ware zachary.w...@gmail.com: -- nosy: +zach.ware ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11468 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18807] Allow venv to create copies, even when symlinks are supported
Vinay Sajip added the comment: While you may be right about line 215, line 147 isn't analogous, because in the latter case it's a symlink to a directory. We don't really want the entire lib directory tree *copied* into lib64 (and in any case, the populating of lib will happen much after venv creatuion, when things are installed into the venv: a copy is of no use here). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18807 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17172] Add turtledemo to IDLE menu
Lita Cho added the comment: I am currently in the process of editing this patch such that the Turtle Demo launches from the Help Menu and spawns a separate process. However, I am deciding whether if the separate process should be asynchronous or not. Currently, I have it working with the subprocess module, but the IDLE window is hanging. I can use the multiprocess module or Popen to make it asynchronous. However, I am not sure where the clean-up should happen once the turtle process has been terminated. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17172 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21539] pathlib's Path.mkdir() should allow for mkdir -p functionality
Antoine Pitrou added the comment: Le 27/05/2014 20:32, Barry A. Warsaw a écrit : I've just been writing some new code to use pathlib and ran into this one myself. An exist_ok=False is fine, although it's a slight shame that for backward compatibility we can't adopt os.makedirs() signature exactly. What do you mean by that? The os.makedirs() signature is os.makedirs(name, mode=0o777, exist_ok=False) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21539 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21539] pathlib's Path.mkdir() should allow for mkdir -p functionality
Barry A. Warsaw added the comment: On May 27, 2014, at 08:48 PM, Antoine Pitrou wrote: What do you mean by that? The os.makedirs() signature is os.makedirs(name, mode=0o777, exist_ok=False) Right, but this is Path.mkdir's signature: Path.mkdir(mode=0o777, parents=False) so it's too late to make exist_ok=False the second argument (i.e. the one after `mode`). Oh well. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21539 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21578] Misleading error message when ImportError called with invalid keyword args
Eric Snow added the comment: Looks good to me. Thanks for doing this. If no one objects in the meantime, I'll commit this in a few days. -- assignee: - eric.snow stage: patch review - commit review ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21578 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18807] Allow venv to create copies, even when symlinks are supported
Dominic Cerquetti added the comment: Preliminary patch for line 215, per earlier description. While this doesn't appear to break anything and creates both copies and symlinks correctly, I do have these four failing unit tests: test_multiprocessing_fork test_multiprocessing_forkserver test_multiprocessing_main_handling test_multiprocessing_spawn I don't have time right now to look into it to see if they're related to my change (at first glance, it looks like not). -- keywords: +patch Added file: http://bugs.python.org/file35382/venv-symlink-fix.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18807 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18807] Allow venv to create copies, even when symlinks are supported
Dominic Cerquetti added the comment: Ok cool, as you said line 215 then seems to be the only one that needs it. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18807 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17172] Add turtledemo to IDLE menu
Raymond Hettinger added the comment: the IDLE window is hanging Check to make sure it is actually hung. The event-loop can make it look hung but it is actually just waiting for an event. An IDLE restart suffices to kill it sometimes. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17172 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11468] Improve unittest basic example in the doc
Raymond Hettinger added the comment: FWIW, I'm going to test some other module (math or somesuch) rather than the built-in string methods. The normal use of unittest is to import both the unittest module and the module under test. I want to show that pattern (which is somewhat different from doctests where the tests are typically in the same file as the code being tested). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11468 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17172] Add turtledemo to IDLE menu
Lita Cho added the comment: Okay, maybe hanging is not the right word. The IDLE window becomes busy since it spawned off the Turtle demo subprocess, and it is waiting for the subprocess to finish. After I close the Turtle window, it returns back to normal. I was wondering if the Turtle Demo should be a separate asynchronous process so that users could use the IDLE window as well as the Turtle demo. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17172 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18132] buttons in turtledemo disappear on small screens
Changes by Terry J. Reedy tjre...@udel.edu: -- nosy: +terry.reedy ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18132 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17172] Add turtledemo to IDLE menu
Lita Cho added the comment: I currently have a patch where the Turtle Demo now shows up in the Help menu rather than in File menu. I also have it such that Turtle is now launched as a separate process rather than within the IDLE process. Currently, the commend is calling ./python.exe so it uses my build of Python rather than my system's python. But I can change that once people agree this is the right way to go. -- Added file: http://bugs.python.org/file35383/turtle_demo.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17172 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue3015] tkinter with wantobjects=False has been broken for some time
Lita Cho added the comment: Serhiy, does that mean this is fixed the way it is? Do I need to do anything else to close out this issue? It looks like wantobjects is set to False, currently. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3015 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6639] turtle: _tkinter.TclError: invalid command name .10170160
Lita Cho added the comment: So I have a patch that fixes the original problem, but doesn't fix the crash with the tdemo_round_dance.py. However, I was wondering why TurtleScreen._RUNNING = True in the _destroy method. Can anyone shed some light on this? Here is the current state of my patch. -- keywords: +patch Added file: http://bugs.python.org/file35384/turtle_bug.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6639 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21208] Change default behavior of arguments with type bool when options are specified
paul j3 added the comment: Last year someone asked on Stackoverflow about using 'type=bool'. My answer is at: http://stackoverflow.com/questions/15008758/parsing-boolean-values-with-argparse/19233287#19233287 'type' is supposed to be a function that takes a string, and converts to a desired Python object (e.g. number), and in the process validates it. The builtin 'bool()' is not a good choice for this. 'bool()' returns False, all other strings return True, that includes strings like false, no, False. If you want those strings to be interpreted as boolean False, you need to write your own 'str2bool' function. But normally boolean values are entered via 'store_true' and 'store_false' actions. -- nosy: +paul.j3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21208 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21416] argparse should accept bytes arguments as originally passed
paul j3 added the comment: Two points to keep in mind: 'argparse' works with 'sys.argv[1:]'. If that does not contain what you want, then you can pass your own 'argv' to 'parse_args'. 'type=bytes' means, call the builtin 'bytes' function with one of the argv strings. If 'bytes' does not handle the string as you want, then you need to write your own function. -- nosy: +paul.j3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21416 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21416] argparse should accept bytes arguments as originally passed
paul j3 added the comment: 'invalid bytes value' is the error message generated by 'argparse'. The underlying error (for a string like 'xxx') is: print(bytes(sys.argv[1])) TypeError: string argument without an encoding You could use 'bytes' if you somehow supply the encoding, as in: def mybytes(astr): return bytes(astr, 'utf-8') -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21416 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10523] argparse has problem parsing option files containing empty rows
Changes by paul j3 ajipa...@gmail.com: -- nosy: +paul.j3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10523 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17172] Add turtledemo to IDLE menu
Terry J. Reedy added the comment: I think a patch should reuse the run module function that Idle already has. No need to re-invent something. I will say more tomorrow after sleeping. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17172 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1683368] object.__init__ shouldn't allow args/kwds
Jason R. Coombs added the comment: I recently ran into this error again. I was writing this class to provide backward-compatible context manager support for zipfile.ZipFile on Python 2.6 and 3.1: class ContextualZipFile(zipfile.ZipFile): Supplement ZipFile class to support context manager for Python 2.6 def __enter__(self): return self def __exit__(self, type, value, traceback): self.close() def __new__(cls, *args, **kwargs): Construct a ZipFile or ContextualZipFile as appropriate if hasattr(zipfile.ZipFile, '__exit__'): return zipfile.ZipFile(*args, **kwargs) return super(ContextualZipFile, cls).__new__(cls, *args, **kwargs) At the point where super is called, the author is unaware of the details of the function signature for zipfile.ZipFile.__new__, so simply passes the same arguments as were received by the derived class. However, this behavior raises a DeprecationWarning on Python 2.6 and 3.1 (and would raise an error on Python 3.2 if the code allowed it). What's surprising is that the one cannot simply override a constructor or initializer without knowing in advance which of those methods are implemented (and with what signature) on the parent class. It seems like the construction (calling of __new__) is special-cased for classes that don't implement __new__. What is the proper implementation of ContextualZipFile.__new__? Should it use super but omit the args and kwargs? Should it call object.__new__ directly? Should it check for the existence of __new__ on the parent class (or compare it to object.__new__)? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1683368 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20430] Make argparse.SUPPRESS work as an argument dest
paul j3 added the comment: If we make this change to '_StoreAction', we need to do it to 4 other subclasses which take the same 'setattr(namespace, self.dest, values)'. An alternative would be to define a 'Namespace' function that does this conditional 'setattr'. How should this 'SUPPRESS' affect the usage and help? I'm seeing --foo ==SUPPRESS==. Do you have practical need for such a 'SUPPRESS', or are you just trying to make behavior consistent? 'SUPPRESS' is used for '--help' and subparsers because those Actions have important side effects, and we don't want default values to appear in the Namespace. With '_StoreAction', the only effect is to store a value in the Namespace. -- nosy: +paul.j3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20430 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
