makefile based python build
Hi, I'm releasing my first attempt to cross compile python on android using a simple makefile based build system: https://bitbucket.org/cavallo71/android As side effect it can also build on a gcc based system as (linux so far). The attempt was started in order to simplify the build system and cross compiling modules. In future the hope is to remove distutils package and clear other modules (notably sysconfig.py and site.py). Thanks Antonio -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
ANN: Training - Professional Testing with pytest and tox
Professional Testing with pytest and tox What: An in-depth pytest and tox course When: June 24 - 26, 2013 Where: Python Academy, Leipzig, Germany Who: Holger Krekel Details: http://www.python-academy.com/courses/specialtopics/python_course_testing.html You always write tests for your code, even before you write the code itself, right? If yes, than you can learn how to do this with the help of pytest [1] and tox [2]. These smart Python tools help you to make your tests better. If you don't write tests yet, you can learn how to do this on a professional level right from the beginning. Join Holger Krekel, the author of pytest and tox, when he explains how to integrate testing and deployment using real-world examples. Learn what it means to do pythonic testing by taking advantage of Python's philosophy to make simple things simple and complex things possible. Bring your own problems to be discussed in the course. The course is offered in Leipzig, Germany. This city has about half a million inhabitants and provides a very rich cultural life. It was the home of the first two PyCon DE conferences in 2011 and 2012. The teaching location can be easily reached via car or public transportation. Leipzig is very well connected to the German Autobahn and railway systems. The airport is only 15 taxi minutes away from the training location. There are plenty of reasonably priced hotels nearby. [1] http://pytest.org/latest/ [2] http://codespeak.net/tox/ -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
ANN: Twisted Training - Three days to untwist the framework
Twisted Training What: An in-depth Twisted course When: September 9 - 11, 2013 Where: Python Academy, Leipzig, Germany Who: Laurens Van Houtven Details: http://www.python-academy.com/courses/specialtopics/python_course_twisted.html Twisted [1] is a powerful framework to develop network applications of all kinds. Since the way it works is somewhat different from the typical Python programming style, it might not be that easy to take full advantage of all the power that comes with Twisted. This course gives a solid introduction and takes you deep into the land of deferreds, callbacks and events. Learn from the Twisted committer Laurens Van Houtven how to integrate Twisted into existing, non-Twisted applications. Inherited some Twisted code and feel kind of lost? This training will help you to understand what is going on. The course is offered in Leipzig, Germany. This city has about half a million inhabitants and provides a very rich cultural life. It was the home of the first two PyCon DE conferences in 2011 and 2012. The teaching location can be easily reached via car or public transportation. Leipzig is very well connected to the German Autobahn and railway systems. The airport is only 15 taxi minutes from the training location. There are plenty of reasonably priced hotels nearby. [1] http://twistedmatrix.com/ -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
Re: LangWart: Method congestion from mutate multiplicty
Yeah, this is, pardon the french, just batshit crazy. huh ? :) JM -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. -- http://mail.python.org/mailman/listinfo/python-list
Web Testing Frameworks
Hello, I'm not wanting to start anything here, but I am wanting to automate testing of my Django-based websites. A quick search on Google turns up a number of packages and I would like to know if any stand out from the others? Our main sites are used to display a customer dashboard, so my concerns are is the site up and assessable, are the proper navigational tabs displayed and is the appropriate information presented when I fill out a request. My guess is that is pretty standard for testing a web site? So, 1. What framework(s) should I look at? 2. Where can I get information/documentation/training on how to test a web site? Thanks! --greg -- http://mail.python.org/mailman/listinfo/python-list
Re: LangWart: Method congestion from mutate multiplicty
On Mon, Feb 11, 2013 at 8:52 PM, Jean-Michel Pichavant jeanmic...@sequans.com wrote: Yeah, this is, pardon the french, just batshit crazy. huh ? :) You're French, ergo you are pardoned. Makes good sense to me! :) ChrisA Cheshire was right, we're all mad here... -- http://mail.python.org/mailman/listinfo/python-list
Re: call from pthon to shell
On 02/12/2013 05:38 AM, Bqsj Sjbq wrote: import os os.system(i=3) 0 os.system(echo $i) 0 why i can not get the value of i? First: os.system is only defined to give the return value (exit code) of the sub-process. However, one way to get the output of shell commands is to use subprocess. import subprocess x = subprocess.check_output( [ echo, 3,5,7 ] ) However, bash built-ins are not executables; nor is shell expansion performed; so you will actually need to do something like: x=subprocess.check_output( [ bash, -c, i=3; echo $i ] ) x '3\n' To get the result you're interested in. There may be better ways to get the result you want but hopefully you understand the problem better. :) -- http://mail.python.org/mailman/listinfo/python-list
Re: call shell from python
On Tuesday, February 12, 2013 6:13:38 AM UTC+1, contro opinion wrote: import os os.system(i=3) 0 os.system(echo $i) 0 how can i get the value of i? You may want to take a look at the pexcpect module : http://www.noah.org/wiki/pexpect -- http://mail.python.org/mailman/listinfo/python-list
UnicodeEncodeError when not running script from IDE
I am using Eclipse to write my python scripts and when i run them from inside eclipse they work fine without errors. But almost in every script that handle some form of special characters like swedish åäö and chinese characters etc i get Unicode errors when running the script externally with python.exe or pythonw.exe (but the scripts run completely fine from within Eclipse (standard pydev projects, python2.7). I have usually launched the script gui from wihin eclipse because of this error but now i want to get the bottom of this so i dont have to open eclipse everytime i want to run a script! Here is the error i get now when running the script with python.exe: UnicodeEncodeError:'charmap' codec cant encode character u'\u898b' in position 32: character maps to undefined what can i do to fix this? -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeEncodeError when not running script from IDE
On 2013.02.12 04:43, Magnus Pettersson wrote: I am using Eclipse to write my python scripts and when i run them from inside eclipse they work fine without errors. But almost in every script that handle some form of special characters like swedish åäö and chinese characters etc i get Unicode errors when running the script externally with python.exe or pythonw.exe (but the scripts run completely fine from within Eclipse (standard pydev projects, python2.7). I have usually launched the script gui from wihin eclipse because of this error but now i want to get the bottom of this so i dont have to open eclipse everytime i want to run a script! Here is the error i get now when running the script with python.exe: UnicodeEncodeError:'charmap' codec cant encode character u'\u898b' in position 32: character maps to undefined what can i do to fix this? Since you didn't say what code actually does this, I'll turn to my crystal ball. It says you are trying to print characters to a terminal that doesn't support them. If that is the case, you could try changing the code page (but only 3.3 supports cp65001, so that probably won't help) or use replacement characters when printing. -- CPython 3.3.0 | Windows NT 6.2.9200.16461 / FreeBSD 9.1-RELEASE -- http://mail.python.org/mailman/listinfo/python-list
Re: how to call shell?
On Tue, Feb 12, 2013, at 12:12 AM, contro opinion wrote:
import os
os.system(i=3)
0
os.system(echo $i)
0
why i can't get the value of i ?
Whenever you call os.system, a new shell is created and the command is
run, system() then waits for the command to complete.
You don't see i because your two system() calls are in two different
processes:
python import os
python os.system('echo $$')
24294
0
python os.system('echo $$')
24295
0
However, ths (e.g.) would work:
python os.system('i=3; echo $i')
3
0
HTH,
-a
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Re: UnicodeEncodeError when not running script from IDE
Magnus Pettersson wrote: I am using Eclipse to write my python scripts and when i run them from inside eclipse they work fine without errors. But almost in every script that handle some form of special characters like swedish åäö and chinese characters etc A comment: they are not special characters. They're merely not American. i get Unicode errors when running the script externally with python.exe or pythonw.exe (but the scripts run completely fine from within Eclipse (standard pydev projects, python2.7). I have usually launched the script gui from wihin eclipse because of this error but now i want to get the bottom of this so i dont have to open eclipse everytime i want to run a script! Here is the error i get now when running the script with python.exe: UnicodeEncodeError:'charmap' codec cant encode character u'\u898b' in position 32: character maps to undefined Please show the *complete* traceback, including the line of code that causes the exception. what can i do to fix this? My guess is that you are trying to print a character which your terminal cannot display. My terminal is set to use UTF-8, and so it can display it fine: py c = u'\u898b' py print(c) 見 (or at least it would display fine if the font used had a glyph for that character). Why there are still terminals in the world that don't default to UTF-8 is beyond me. If I manually change the terminal's encoding to Western European ISO 8859-1, I get some moji-bake: py print(c) è¦ I can't replicate the exception you give, so I assume it is specific to Windows. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Python3 exec locals - this must be a FAQ
Hi,
I've tried but didn't find an answer on the net.
The exec function in Python modifies a copy of locals() only.
How can I transfer changes in that local copy to the locals of my function
** without ** knowing the names of these variables.
E.g. I have a lot of local names.
Doing
_locals= locals()
expr=compile(input('statements assigning to some local variables '),
'user input','exec')
exec(expr,globals(),_locals)
How can I copy the new values within _locals to my current locals.
If I knew that Var1 has changed I could say
Var1 = _locals['Var1'] but what to do in general?
Many thanks for a hint,
Helmut.
--
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Re: UnicodeEncodeError when not running script from IDE
Ahh so its the actual printing that makes it error out outside of eclipse because its a different terminal that its printing to. Its the default DOS terminal in windows that runs then i run the script with python.exe and i guess its the same when i run with pythonw.exe just that the terminal window is not opened up, only the pyqt gui in this case. I will try to fix it now when i know what it is :) I never thought about the terminal, last time i had the same problem i just were playing around for hours with unicode encode and decode and all that not-so-fun stuff :) Andrew Berg: Thanks, your crystal ball seems to be right :P On Tuesday, February 12, 2013 12:43:00 PM UTC+1, Steven D'Aprano wrote: Magnus Pettersson wrote: I am using Eclipse to write my python scripts and when i run them from inside eclipse they work fine without errors. But almost in every script that handle some form of special characters like swedish åäö and chinese characters etc A comment: they are not special characters. They're merely not American. i get Unicode errors when running the script externally with python.exe or pythonw.exe (but the scripts run completely fine from within Eclipse (standard pydev projects, python2.7). I have usually launched the script gui from wihin eclipse because of this error but now i want to get the bottom of this so i dont have to open eclipse everytime i want to run a script! Here is the error i get now when running the script with python.exe: UnicodeEncodeError:'charmap' codec cant encode character u'\u898b' in position 32: character maps to undefined Please show the *complete* traceback, including the line of code that causes the exception. what can i do to fix this? My guess is that you are trying to print a character which your terminal cannot display. My terminal is set to use UTF-8, and so it can display it fine: py c = u'\u898b' py print(c) 見 (or at least it would display fine if the font used had a glyph for that character). Why there are still terminals in the world that don't default to UTF-8 is beyond me. If I manually change the terminal's encoding to Western European ISO 8859-1, I get some moji-bake: py print(c) è¦ I can't replicate the exception you give, so I assume it is specific to Windows. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Generate 16+MAX_WBITS decompressable data
I'm trying write unit-tests for some of my old code and have run into this
piece of code.
dcomp = zlib.decompressobj(16+zlib.MAX_WBITS)
chunk = ''.join(f.chunks())
received_data = dcomp.decompress(chunk)
How do I generate the chunk here? From what I've been trying I'm getting
this exception:
import zlib
zlib.compress('hello')
'x\x9c\xcbH\xcd\xc9\xc9\x07\x00\x06,\x02\x15'
zlib.decompress(_, 16+zlib.MAX_WBITS)
Traceback (most recent call last):
File stdin, line 1, in module
zlib.error: Error -3 while decompressing data: incorrect header check
zlib.decompress without the second argument works, but I can't really go
ahead into my project file and remove it.
--
Fayaz Yusuf Khan
Cloud architect, Dexetra SS, India
fayaz.yusuf.khan_AT_gmail_DOT_com, fayaz_AT_dexetra_DOT_com
+91-9746-830-823
--
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how to add socks proxy feature to script based on requests module?
Hi! I've go a script which uses python requests (http://docs.python-requests.org/en/latest/). I need to add to it socks proxy feature. AFAIK requests doesn't support socks proxy (http://stackoverflow.com/questions/12601316/how-to-make-python-requests-work-via-socks-proxy) so i was about to switch requests module to human_curl (http://stackoverflow.com/questions/8482896/making-http-requests-via-python-requests-module-not-working-via-proxy-where-curl). Then it turned out that human_curl doesn't support requests module's session. Ok, what can You recommend me to do? I need the best solution for adding socks proxy feature to script (based on requests module). if nothing better is recommended i'll clone requests' module session feature in human_curl. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python3 exec locals - this must be a FAQ
On 02/12/2013 06:46 AM, Helmut Jarausch wrote:
Hi,
I've tried but didn't find an answer on the net.
The exec function in Python modifies a copy of locals() only.
How can I transfer changes in that local copy to the locals of my function
** without ** knowing the names of these variables.
E.g. I have a lot of local names.
Doing
_locals= locals()
This doesn't copy everything. But perhaps you know that and you're just
testing us.
expr=compile(input('statements assigning to some local variables '),
'user input','exec')
exec(expr,globals(),_locals)
How can I copy the new values within _locals to my current locals.
If I knew that Var1 has changed I could say
Var1 = _locals['Var1'] but what to do in general?
locals()[Var1] = _locals[Var1] will set the same Var1 local.
So you might write a loop on _locals.
But beware if someone has deleted one of the variables it may not do
what you'd like. You cannot necessarily add back a local with the above
syntax.
--
DaveA
--
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Re: UnicodeEncodeError when not running script from IDE
I have tried now to take away printing to terminal and just keeping the writing to a .txt file to disk (which is what the scripts purpose is): with open(filepath,a) as f: for card in cardlist: f.write(card+\n) The file it writes to exists and im just appending to it, but when i run the script trough eclipse, all is fine. When i run in terminal i get this error instead: File K:\dev\python\webscraping\kanji_anki.py, line 69, in savefile f.write(card+\n) UnicodeEncodeError: 'ascii' codec can't encode character u'\u898b' in position 3 2: ordinal not in range(128) On Tuesday, February 12, 2013 12:01:19 PM UTC+1, Andrew Berg wrote: On 2013.02.12 04:43, Magnus Pettersson wrote: I am using Eclipse to write my python scripts and when i run them from inside eclipse they work fine without errors. But almost in every script that handle some form of special characters like swedish åäö and chinese characters etc i get Unicode errors when running the script externally with python.exe or pythonw.exe (but the scripts run completely fine from within Eclipse (standard pydev projects, python2.7). I have usually launched the script gui from wihin eclipse because of this error but now i want to get the bottom of this so i dont have to open eclipse everytime i want to run a script! Here is the error i get now when running the script with python.exe: UnicodeEncodeError:'charmap' codec cant encode character u'\u898b' in position 32: character maps to undefined what can i do to fix this? Since you didn't say what code actually does this, I'll turn to my crystal ball. It says you are trying to print characters to a terminal that doesn't support them. If that is the case, you could try changing the code page (but only 3.3 supports cp65001, so that probably won't help) or use replacement characters when printing. -- CPython 3.3.0 | Windows NT 6.2.9200.16461 / FreeBSD 9.1-RELEASE -- http://mail.python.org/mailman/listinfo/python-list
Re: Python3 exec locals - this must be a FAQ
On Tue, 12 Feb 2013 08:27:41 -0500, Dave Angel wrote:
On 02/12/2013 06:46 AM, Helmut Jarausch wrote:
Hi,
I've tried but didn't find an answer on the net.
The exec function in Python modifies a copy of locals() only.
How can I transfer changes in that local copy to the locals of my
function ** without ** knowing the names of these variables.
E.g. I have a lot of local names.
Doing
_locals= locals()
This doesn't copy everything. But perhaps you know that and you're just
testing us.
No, I didn't know. And I'm bit surprised since this is recommend
several times, e.g. in Python Essential Reference, 4th ed by
David Beazley.
expr=compile(input('statements assigning to some local variables '),
'user input','exec')
exec(expr,globals(),_locals)
How can I copy the new values within _locals to my current locals.
If I knew that Var1 has changed I could say Var1 = _locals['Var1']
but what to do in general?
locals()[Var1] = _locals[Var1] will set the same Var1 local.
Thanks for this hint which surprises me again since I thought
locals() by itself is a copy only.
So you might write a loop on _locals.
But beware if someone has deleted one of the variables it may not do
what you'd like. You cannot necessarily add back a local with the above
syntax.
Does this mean that adding something completely new won't work?
Many thanks,
Helmut.
--
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Re: UnicodeEncodeError when not running script from IDE
Magnus Pettersson wrote: I have tried now to take away printing to terminal and just keeping the writing to a .txt file to disk (which is what the scripts purpose is): with open(filepath,a) as f: for card in cardlist: f.write(card+\n) The file it writes to exists and im just appending to it, but when i run the script trough eclipse, all is fine. When i run in terminal i get this error instead: File K:\dev\python\webscraping\kanji_anki.py, line 69, in savefile f.write(card+\n) UnicodeEncodeError: 'ascii' codec can't encode character u'\u898b' in position 3 2: ordinal not in range(128) Are you sure you are writing the same data? That would mean that pydev changes the default encoding -- which is evil. A portable approach would be to use codecs.open() or io.open() instead of the built-in: import io with io.open(filepath, a) as f: ... io.open() uses UTF-8 by default, but you can specify other encodings with io.open(filepath, mode, encoding=whatever). -- http://mail.python.org/mailman/listinfo/python-list
A newbie question
Hi, All. I'm a (old) delphi developer. I want to learn Python. I've python 2.7 and django. For learning purpose I want to use firebird. But, package (egg) to use firebird needs easy_install for setup. When i run: python ez_setup.py install python says me error: Downloading http://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-p y2.7.egg Searching for install Reading http://pypi.python.org/simple/install/ Couldn't find index page for 'install' (maybe misspelled?) Scanning index of all packages (this may take a while) Reading http://pypi.python.org/simple/ No local packages or download links found for install Best match: None Traceback (most recent call last): File ez_setup.py, line 278, in module main(sys.argv[1:]) File ez_setup.py, line 213, in main return main(list(argv)+[egg]) # we're done here File C:\Python27\Scripts\setuptools-0.6c11-py2.7.egg\setuptools\command\easy_ install.py, line 1712, in main File C:\Python27\Scripts\setuptools-0.6c11-py2.7.egg\setuptools\command\easy_ install.py, line 1700, in with_ei_usage File C:\Python27\Scripts\setuptools-0.6c11-py2.7.egg\setuptools\command\easy_ install.py, line 1716, in lambda File C:\Python27\lib\distutils\core.py, line 152, in setup dist.run_commands() File C:\Python27\lib\distutils\dist.py, line 953, in run_commands self.run_command(cmd) File C:\Python27\lib\distutils\dist.py, line 972, in run_command cmd_obj.run() File C:\Python27\Scripts\setuptools-0.6c11-py2.7.egg\setuptools\command\easy_ install.py, line 211, in run File C:\Python27\Scripts\setuptools-0.6c11-py2.7.egg\setuptools\command\easy_ install.py, line 434, in easy_install File C:\Python27\Scripts\setuptools-0.6c11-py2.7.egg\setuptools\package_index .py, line 475, in fetch_distribution AttributeError: 'NoneType' object has no attribute 'clone' In download site I get info about installer works only on win32, but I'm uisng 64 bit version, so I need to do setup manually. Searching error, I see a lot of message baout errors AFTER easy_install was done. Also, I see that some link used in python file does'nt exist or is broken. TIA for any suggestion. A. -- http://mail.python.org/mailman/listinfo/python-list
Re: Awsome Python - chained exceptions
On 2/12/2013 1:15 AM, Steven D'Aprano wrote:
As an antidote to the ill-informed negativity of Ranting Rick's
illusionary PyWarts, I thought I'd present a few of Python's more
awesome features, starting with exception contexts.
You do not need Rick to justify such an informative post.
If you've ever written an exception handler, you've probably written a
*buggy* exception handler:
def getitem(items, index):
# One-based indexing.
try:
return items[index-1]
except IndexError:
print (Item at index %d is missing % index - 1) # Oops!
Unfortunately, when an exception occurs inside an except or finally
block, the second exception masks the first, and the reason for the
original exception is lost:
py getitem(['one', 'two', 'three'], 5) # Python 2.6
Traceback (most recent call last):
File stdin, line 1, in module
File stdin, line 6, in getitem
TypeError: unsupported operand type(s) for -: 'str' and 'int'
But never fear! In Python 3.1 and better, Python now shows you the full
chain of multiple exceptions, and exceptions grow two new special
attributes: __cause__ and __context__.
Some thought was given to having only one special attribute, but in the
end it was decided to have __context__ be the actual context and
__cause__ be the programmer set and displayed 'context'.
If an exception occurs while handling another exception, Python sets the
exception's __context__ and displays an extended error message:
py getitem(['one', 'two', 'three'], 5) # Python 3.1
Traceback (most recent call last):
File stdin, line 4, in getitem
IndexError: list index out of range
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File stdin, line 1, in module
File stdin, line 6, in getitem
TypeError: unsupported operand type(s) for -: 'str' and 'int'
Python 3 also allows you to explicitly set the exception's __cause__
using raise...from syntax:
py try:
... len(None)
... except TypeError as e:
... raise ValueError('bad value') from e
...
Traceback (most recent call last):
File stdin, line 2, in module
TypeError: object of type 'NoneType' has no len()
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File stdin, line 4, in module
ValueError: bad value
Note the slight difference in error message. If both __cause__ and
__context__ are set, the __cause__ takes priority.
Sometimes you actually want to deliberately catch one exception and raise
another, without showing the first exception. A very common idiom in
Python 2:
try:
do_work()
except SomeInternalError:
raise PublicError(error_message)
Starting with Python 3.3, there is now support from intentionally
suppressing the __context__:
py try:
... len(None)
... except TypeError:
... raise ValueError('bad value') from None # Python 3.3
...
Traceback (most recent call last):
File stdin, line 4, in module
ValueError: bad value
The new features are explained in the Library manual, Ch. 5, Exceptions,
but without so many clear examples. The 'from None' option has not yet
been added to the Language reference section on raise statements (an
issue on the tracker), so it is easy to miss if one does not also read
the Library chapter.
You can read more about exception chaining here:
http://www.python.org/dev/peps/pep-3134/
http://www.python.org/dev/peps/pep-0409/
--
Terry Jan Reedy
--
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Re: Python3 exec locals - this must be a FAQ
On 2013-02-12 13:27, Dave Angel wrote:
On 02/12/2013 06:46 AM, Helmut Jarausch wrote:
Hi,
I've tried but didn't find an answer on the net.
The exec function in Python modifies a copy of locals() only.
How can I transfer changes in that local copy to the locals of my function
** without ** knowing the names of these variables.
E.g. I have a lot of local names.
Doing
_locals= locals()
This doesn't copy everything. But perhaps you know that and you're just
testing us.
expr=compile(input('statements assigning to some local variables '),
'user input','exec')
exec(expr,globals(),_locals)
How can I copy the new values within _locals to my current locals.
If I knew that Var1 has changed I could say
Var1 = _locals['Var1'] but what to do in general?
locals()[Var1] = _locals[Var1] will set the same Var1 local.
So you might write a loop on _locals.
But beware if someone has deleted one of the variables it may not do
what you'd like. You cannot necessarily add back a local with the above
syntax.
The docs for locals() warns The contents of this dictionary should
not be modified; changes may not affect the values of local and free
variables used by the interpreter.
That's because local variables in a function are implemented (at least
in CPython) using 'slots' for efficiency reasons.
def example():
a = 1
print(a is {}, locals() is {}.format(a, locals()))
print(Changing a to 2 directly)
a = 2
print(a is {}, locals() is {}.format(a, locals()))
print(Changing a to 3 via locals())
locals()[a] = 3
print(a is {}, locals() is {}.format(a, locals()))
locals()[b] = 0
print(locals() is {}.format(locals()))
print(b is {}.format(b))
example()
a is 1, locals() is {'a': 1}
Changing a to 2 directly
a is 2, locals() is {'a': 2}
Changing a to 3 via locals()
a is 2, locals() is {'a': 2}
locals() is {'b': 0, 'a': 2}
Traceback (most recent call last):
File pyshell#39, line 1, in module
example()
File pyshell#38, line 12, in example
print(b is {}.format(b))
NameError: global name 'b' is not defined
Note how attempting to change variable a in locals() is ignored, and
how adding variable b to locals() doesn't actually make it a local
variable (it raises a NameError).
--
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Re: string.replace doesn't removes :
On Sunday, February 10, 2013 4:36:53 AM UTC-6, Johannes Bauer wrote: On 09.02.2013 12:04, Joshua Robinson wrote: Hi *Monte-Pythons*, x = this is a simple : text: that has colon s = x.replace(string.punctuation, ); OR s = x.replace(string.punctuation, ); print x # 'this is a simple : text: that has colon' # The colon is still in the text Is this a bug or am I doing something wrong ? The latter. str.replace() only replaces complete substrings, not single character occurences of the given pattern. That is foo.replace(foo, bar) == bar foofoo.replace(foo, bar) == barbar foofoo.replace(fo, bar) == barobaro foofoo.replace(abcdef, bar) == foofoo Regards, Johannes -- Wo hattest Du das Beben nochmal GENAU vorhergesagt? Zumindest nicht öffentlich! Ah, der neueste und bis heute genialste Streich unsere großen Kosmologen: Die Geheim-Vorhersage. - Karl Kaos über Rüdiger Thomas in dsa hidbv3$om2$1...@speranza.aioe.org Hello Joshua: Hopefully you have worked out the issue. Johannes is right on the money using 'replace' as shown below. x = this is a simple : text: that has colon s = x.replace(:, ) print(s) 'this is a simple text that has colon' Sincerely, VDuncan -- http://mail.python.org/mailman/listinfo/python-list
Re: Web Testing Frameworks
In mailman.1689.1360655922.2939.python-l...@python.org Greg Lindstrom gslindst...@gmail.com writes: I'm not wanting to start anything here, but I am wanting to automate testing of my Django-based websites. A quick search on Google turns up a Have you looked at using the built-in django test client? -- John Gordon A is for Amy, who fell down the stairs gor...@panix.com B is for Basil, assaulted by bears -- Edward Gorey, The Gashlycrumb Tinies -- http://mail.python.org/mailman/listinfo/python-list
Re: Logwatch python
- Original Message - In article 1de56e5b-4f9b-477d-a1d4-71e7222a2...@googlegroups.com, Cleuson Alves cleuso...@gmail.com wrote: Hello, I am trying to run this code, but I get an answer incorrect arguments numbers. someone could put an example of arguments for me to use in the / var / log? Since the first cave man tried to sort his rock collection into descending order of mastodon kills, people have been inventing really awesome debugging tools. One of the earliest, and still near the top of most people's toolkits is the print statement. You've got: if options.logfile is None or options.findstring is None or options.logpos is None: print(Incorrect arguments numbers.\n) Start by printing out the values of options.logfile, options.findstring, and options.logpos. Then at least you will know which of those three is causing the problem. You're being too sarcastic, this guy 's just invented options that are not optional, show some respect :) To the OP : you forgot to specify one or more of the 3 mandatory options --logfile --logpos --find Check your command line. JM -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeEncodeError when not running script from IDE
Are you sure you are writing the same data? That would mean that pydev changes the default encoding -- which is evil. A portable approach would be to use codecs.open() or io.open() instead of the built-in: import io with io.open(filepath, a) as f: ... io.open() uses UTF-8 by default, but you can specify other encodings with io.open(filepath, mode, encoding=whatever). Interesting. Pydev must be doing something behind the scenes because when i changed open() to io.open() i get error inside of eclipse now: f.write(card+\n) File C:\python27\lib\encodings\cp1252.py, line 19, in encode return codecs.charmap_encode(input,self.errors,encoding_table)[0] UnicodeEncodeError: 'charmap' codec can't encode character u'\u53c8' in position 32: character maps to undefined io.open(filepath, a, encoding=UTF-8) as f: Then it works in eclipse. But I seem to be having an encoding problem all over the place that works in eclipse but dosnt work outside of eclipse pydev. Here is the flow of my data, im terrible at using unicode/encode/decode so could use some help here: kanji_anki_gui.py: def on_addButton_clicked(self): #code # self.kanji.text() comes from a kanji letter written into a pyqt4 QLineEdit kanji = unicode(self.kanji.text()) card = kanji_anki.scrapeKanji(kanji,tags) #more code kanji_anki.py: def scrapeKanji(kanji, tags=, onlymeaning=False): baseurl = unicode(http://www.romajidesu.com/kanji/;) url = unicode(baseurl+kanji) #test to write out url to disk, works outside of eclipse now savefile([url]) #getting webpage works fine in eclipse, prints Oh no... in terminal try: page = urllib2.urlopen(url) except: print OH no website dont work return None #Code that does some scraping and returns a string containing kanji letters return card def savefile(cardlist,filepath=D:/iknow_kanji.txt): with io.open(filepath, a) as f: for card in cardlist: f.write(card+\n) return True -- http://mail.python.org/mailman/listinfo/python-list
buffers and memoryviews
I didn't know a whole lot (read: nothing) about buffers and memoryviews before digging into the C side of Python. Once I found them, ran into some of the 2.7 ugliness of having /both/ buffers and memoryviews available and found the tremendous usefulness in them, I decided to write a blog post. In this post, I hope to give the reader a brief overview of what each is, detail some of the ugliness in 2.7 and provide useful information for those wanting to incorporate them into their work. http://demianbrecht.github.com/posts/2013/02/10/buffer-and-memoryview/ Demian Brecht http://demianbrecht.github.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Generate 16+MAX_WBITS decompressable data
On 2/12/2013 7:47 AM, Fayaz Yusuf Khan wrote:
I'm trying write unit-tests for some of my old code and have run into this
piece of code.
dcomp = zlib.decompressobj(16+zlib.MAX_WBITS)
Since zlib.MAX_WBITS is the largest value that should be passed (15),
adding 16 makes no sense. Since it is also the default, there is also no
point in providing it explicitly. Its absolute value should be between
8 and 15 for the most recent versions of the zlib library.
chunk = ''.join(f.chunks())
received_data = dcomp.decompress(chunk)
Since decompressobj is intended for data that will not all fit in memory
at once, and since chunk does, just use zlib.decompress(chunk)
How do I generate the chunk here? From what I've been trying I'm getting
this exception:
import zlib
zlib.compress('hello')
'x\x9c\xcbH\xcd\xc9\xc9\x07\x00\x06,\x02\x15'
zlib.decompress(_, 16+zlib.MAX_WBITS)
Traceback (most recent call last):
File stdin, line 1, in module
zlib.error: Error -3 while decompressing data: incorrect header check
You asked for an internal buffer of 2**31 = 2 gigabytes.
zlib.decompress without the second argument works, but I can't really go
ahead into my project file and remove it.
--
Terry Jan Reedy
--
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Re: Python3 exec locals - this must be a FAQ
On 02/12/2013 09:29 AM, Helmut Jarausch wrote:
On Tue, 12 Feb 2013 08:27:41 -0500, Dave Angel wrote:
On 02/12/2013 06:46 AM, Helmut Jarausch wrote:
Hi,
I've tried but didn't find an answer on the net.
The exec function in Python modifies a copy of locals() only.
How can I transfer changes in that local copy to the locals of my
function ** without ** knowing the names of these variables.
E.g. I have a lot of local names.
Doing
_locals= locals()
This doesn't copy everything. But perhaps you know that and you're just
testing us.
No, I didn't know. And I'm bit surprised since this is recommend
several times, e.g. in Python Essential Reference, 4th ed by
David Beazley.
That assignment is useful, because it presumably saves the time that
calling locals() will take constructing the dict. But copying anything
by assignment just makes a new reference to the same thing. If that
thing is mutable, as a dict is, then changes made to the (dict) object
are visible to both.
expr=compile(input('statements assigning to some local variables '),
'user input','exec')
exec(expr,globals(),_locals)
How can I copy the new values within _locals to my current locals.
If I knew that Var1 has changed I could say Var1 = _locals['Var1']
but what to do in general?
locals()[Var1] = _locals[Var1] will set the same Var1 local.
Thanks for this hint which surprises me again since I thought
locals() by itself is a copy only.
(Thanks MRAB for your correction.)
As MRAB points out, I was in error on this point. I only tested it in
global scope. Inside a function it doesn't seem to work. See docs below.
So you might write a loop on _locals.
But beware if someone has deleted one of the variables it may not do
what you'd like. You cannot necessarily add back a local with the above
syntax.
Does this mean that adding something completely new won't work?
Many thanks,
Helmut.
That depends. All I can say for sure is it won't work for CPython to
create new local variables inside a function that way. It seems to work
for globals (which are also locals when code of global scope is using
it), but I wouldn't count on it.
http://docs.python.org/2/library/functions.html#locals
Note the sentence:
The contents of this dictionary should not be modified; changes may
not affect the values of local and free variables used by the interpreter
Notice that adding or removing items from a dictionary is modifying it,
while changing values that the keys are associated with is not. But
apparently the documentation meant it more strictly than it was worded.
If you really have dozens of variables that you want to pass to exec,
then restore their original values after it returns, I suggest you make
your own (empty) class, and use that as a namespace to accomplish it.
The reason I was tripped up on this definition is that I've concluded
long ago that messing with locals() is a losing game, so I'd forgotten
some of the subtlety.
If we knew what the real problem was, we might have a suggestion. For
example, if the intent is for the exec to work with a copy of the
variables, without affecting the originals, then why not use the copy
module, and pass the *copy* to the exec logic.
--
DaveA
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Re: buffers and memoryviews
On 2013-02-12 15:25, Demian Brecht wrote: I didn't know a whole lot (read: nothing) about buffers and memoryviews before digging into the C side of Python. Once I found them, ran into some of the 2.7 ugliness of having /both/ buffers and memoryviews available and found the tremendous usefulness in them, I decided to write a blog post. In this post, I hope to give the reader a brief overview of what each is, detail some of the ugliness in 2.7 and provide useful information for those wanting to incorporate them into their work. http://demianbrecht.github.com/posts/2013/02/10/buffer-and-memoryview/ 3.4? I didn't know that it was out yet! :-) -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeEncodeError when not running script from IDE
Magnus Pettersson wrote: io.open() uses UTF-8 by default, but you can specify other encodings with io.open(filepath, mode, encoding=whatever). Interesting. Pydev must be doing something behind the scenes because when i changed open() to io.open() i get error inside of eclipse now: f.write(card+\n) File C:\python27\lib\encodings\cp1252.py, line 19, in encode return codecs.charmap_encode(input,self.errors,encoding_table)[0] UnicodeEncodeError: 'charmap' codec can't encode character u'\u53c8' in position 32: character maps to undefined io.open(filepath, a, encoding=UTF-8) as f: Then it works in eclipse. But I seem to be having an encoding problem all over the place that works in eclipse but dosnt work outside of eclipse pydev. No, I was wrong about the default; it is actually locale.getpreferredencoding(). Sorry for the confusion. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python3 exec locals - this must be a FAQ
On 2/12/2013 8:27 AM, Dave Angel wrote:
On 02/12/2013 06:46 AM, Helmut Jarausch wrote:
I've tried but didn't find an answer on the net.
You should start with the fine manual, which is on the net as well as
included with at least the Windows distribution. It has a nice index
that includes an entry for locals (built-in function).
The exec function in Python modifies a copy of locals() only.
How can I transfer changes in that local copy to the locals of my
function
** without ** knowing the names of these variables.
You cannot. Just accept that.
E.g. I have a lot of local names.
Doing
_locals= locals()
This merely gives you a handle of the dict returned by locals() for when
you want to do more than just pass it to (for example) exec). This is
unusual because it is not very useful.
This doesn't copy everything.
I have no idea what you mean. The locals() dict contains all local and
nonlocal names, excluding global names, which are in the globals() dict.
expr=compile(input('statements assigning to some local variables '),
'user input','exec')
exec(expr,globals(),_locals)
How can I copy the new values within _locals to my current locals.
If I knew that Var1 has changed I could say
Var1 = _locals['Var1'] but what to do in general?
If you want to put a value back into the function local namespace, this
is the only thing you can do. In CPython, at least, all function local
names must be explicit and known when the function statement is executed
and the function object is created. Read the Library manual entry for
locals(), including the highlighted note.
locals()[Var1] = _locals[Var1] will set the same Var1 local.
Huh??? The dict returned by this locals call is the same dict returned
by the previous locals call and bound to _locas. So the above does
nothing. It is the same thing as _locals[Var1] = _locals[Var1].
--
Terry Jan Reedy
--
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Re: UnicodeEncodeError when not running script from IDE
On 02/12/2013 10:29 AM, Magnus Pettersson wrote: Are you sure you are writing the same data? That would mean that pydev changes the default encoding -- which is evil. A portable approach would be to use codecs.open() or io.open() instead of the built-in: import io with io.open(filepath, a) as f: ... io.open() uses UTF-8 by default, but you can specify other encodings with I think you are using Python 2.x, not Python 3. So you'd better be explicit what encodings you want for each file. io.open(filepath, mode, encoding=whatever). Interesting. Pydev must be doing something behind the scenes because when i changed open() to io.open() i get error inside of eclipse now: What encoding is this file? Since you're appending to it, you really need to match the pre-existing encoding, or the next program to deal with it is in big trouble. So using the io.open() without the encoding= keyword is probably a mistake. f.write(card+\n) File C:\python27\lib\encodings\cp1252.py, line 19, in encode return codecs.charmap_encode(input,self.errors,encoding_table)[0] UnicodeEncodeError: 'charmap' codec can't encode character u'\u53c8' in position 32: character maps to undefined -- DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: A newbie question
On 12/02/2013 10:06 AM, Alberto Salvati wrote: Hi, All. I'm a (old) delphi developer. I want to learn Python. I've python 2.7 and django. For learning purpose I want to use firebird. But, package (egg) to use firebird needs easy_install for setup. When i run: python ez_setup.py install python says me error: Downloading http://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-p y2.7.egg Searching for install Reading http://pypi.python.org/simple/install/ Couldn't find index page for 'install' (maybe misspelled?) Scanning index of all packages (this may take a while) Reading http://pypi.python.org/simple/ No local packages or download links found for install Best match: None Traceback (most recent call last): File ez_setup.py, line 278, in module main(sys.argv[1:]) File ez_setup.py, line 213, in main return main(list(argv)+[egg]) # we're done here File C:\Python27\Scripts\setuptools-0.6c11-py2.7.egg\setuptools\command\easy_ install.py, line 1712, in main File C:\Python27\Scripts\setuptools-0.6c11-py2.7.egg\setuptools\command\easy_ install.py, line 1700, in with_ei_usage File C:\Python27\Scripts\setuptools-0.6c11-py2.7.egg\setuptools\command\easy_ install.py, line 1716, in lambda File C:\Python27\lib\distutils\core.py, line 152, in setup dist.run_commands() File C:\Python27\lib\distutils\dist.py, line 953, in run_commands self.run_command(cmd) File C:\Python27\lib\distutils\dist.py, line 972, in run_command cmd_obj.run() File C:\Python27\Scripts\setuptools-0.6c11-py2.7.egg\setuptools\command\easy_ install.py, line 211, in run File C:\Python27\Scripts\setuptools-0.6c11-py2.7.egg\setuptools\command\easy_ install.py, line 434, in easy_install File C:\Python27\Scripts\setuptools-0.6c11-py2.7.egg\setuptools\package_index .py, line 475, in fetch_distribution AttributeError: 'NoneType' object has no attribute 'clone' In download site I get info about installer works only on win32, but I'm uisng 64 bit version, so I need to do setup manually. Searching error, I see a lot of message baout errors AFTER easy_install was done. Also, I see that some link used in python file does'nt exist or is broken. TIA for any suggestion. A. Try Easy_install, but first, make sure that C:\Python27\Scripts is in your path. Colin W. PS Assuming you are using Windows, you might wish to try PyScripter. I was developed using Delphi. -- http://mail.python.org/mailman/listinfo/python-list
Re: A newbie question
Hi, Colin. Thanks for your answer. But C:\Python27\Scripts is in my path and my trouble is about INSTALL easy_isntall. Bye A. -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeEncodeError when not running script from IDE
On 2/12/2013 7:34 AM, Magnus Pettersson wrote: Ahh so its the actual printing that makes it error out outside of eclipse because its a different terminal that its printing to. Its the default DOS terminal in windows that runs then i run the script with python.exe and i guess its the same when i run with pythonw.exe just that the terminal window is not opened up, only the pyqt gui in this case. Writing txt = expression involving coding print(txt) rather than print(expression involving coding) makes it easier to tell whether a UnicodeError comes from evaluating the expression or from the print operation. Using 3.3 instead of 2.7 will make using unicode somewhat easier. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: Python3 exec locals - this must be a FAQ
On 02/12/2013 10:50 AM, Terry Reedy wrote:
On 2/12/2013 8:27 AM, Dave Angel wrote:
On 02/12/2013 06:46 AM, Helmut Jarausch wrote:
snip
Doing
_locals= locals()
This merely gives you a handle of the dict returned by locals() for when
you want to do more than just pass it to (for example) exec). This is
unusual because it is not very useful.
This doesn't copy everything.
The OP presumably wanted to restore the original values of the original
variables. The above assignment won't help a bit with that.
I have no idea what you mean. The locals() dict contains all local and
nonlocal names, excluding global names, which are in the globals() dict.
expr=compile(input('statements assigning to some local variables '),
'user input','exec')
exec(expr,globals(),_locals)
How can I copy the new values within _locals to my current locals.
If I knew that Var1 has changed I could say
Var1 = _locals['Var1'] but what to do in general?
If you want to put a value back into the function local namespace, this
is the only thing you can do. In CPython, at least, all function local
names must be explicit and known when the function statement is executed
and the function object is created. Read the Library manual entry for
locals(), including the highlighted note.
locals()[Var1] = _locals[Var1] will set the same Var1 local.
Huh??? The dict returned by this locals call is the same dict returned
by the previous locals call and bound to _locas. So the above does
nothing. It is the same thing as _locals[Var1] = _locals[Var1].
My claim was based on the assumption that the earlier assignment had
been fixed by some kind of copy. If not, there's nothing to restore.
I also retracted my use of that trick anyway, since being corrected by
MRAB. I only tested it in top-level code, not inside a function.
--
DaveA
--
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Re: buffers and memoryviews
I guess I /should/ have written it with current releases.. My 3 is current dev source :P Demian Brecht http://demianbrecht.github.com On 2013-02-12 7:42 AM, MRAB pyt...@mrabarnett.plus.com wrote: On 2013-02-12 15:25, Demian Brecht wrote: I didn't know a whole lot (read: nothing) about buffers and memoryviews before digging into the C side of Python. Once I found them, ran into some of the 2.7 ugliness of having /both/ buffers and memoryviews available and found the tremendous usefulness in them, I decided to write a blog post. In this post, I hope to give the reader a brief overview of what each is, detail some of the ugliness in 2.7 and provide useful information for those wanting to incorporate them into their work. http://demianbrecht.github.com/posts/2013/02/10/buffer-and-memoryview/ 3.4? I didn't know that it was out yet! :-) -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Installing Apache 2 and mod_wsgi on CentOS?
Hello Before I go ahead, I'd like to make sure I'm doing it the right away: 1. yum install httpd mod_wsgi 2. Edit /etc/sysconfig/httpd to uncomment this line to get Apache to run as worker MPM: #HTTPD=/usr/sbin/httpd.worker 3. Edit mod_wsgi 4. Build a test WSGI Python script 5. Start Apache, and launch a browser Thank you. -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeEncodeError when not running script from IDE
What encoding is this file? Since you're appending to it, you really need to match the pre-existing encoding, or the next program to deal with it is in big trouble. So using the io.open() without the encoding= keyword is probably a mistake. The .txt file is in UTF-8 I have got it to work now in the terminal, but i dont understand what im doing and why i didnt need to do all the unicode strings and encode mumbo jumbo in eclipse #Here kanji = u私 baseurl = uhttp://www.romajidesu.com/kanji/; url = baseurl+kanji savefile([url]) #this test works now. uses: io.open(filepath, a,encoding=UTF-8) as f: # This made the fetching of the website work. Why did i have to write url.encode(UTF-8) when url already is unicode? I feel i dont have a good understanding of this. page = urllib2.urlopen(url.encode(UTF-8)) -- http://mail.python.org/mailman/listinfo/python-list
Re: Implicit conversion to boolean in if and while statements
On Monday, February 11, 2013 11:55:19 PM UTC-6, Chris Angelico wrote:
On Tue, Feb 12, 2013 at 12:06 PM, 8 Dihedral wrote:
A permanently mutated list is a tuple of constant objects.
I nominate this line as bemusing head-scratcher of the week.
Actually the statement is fact IF you can grok it through the eyes of clarity.
A permanently mutated list...
A list that has been mutated permanently, that is, it cannot be changed back
into a list. psst: i have a sneaking suspicion that he his referring to tuples,
let's see.
...is a tuple...
Ha! Well in Python the immutable sequence type /is/ a tuple after all.
...of constant objects...
The tuple contains objects, and it's objects will maintain a constant ordering
(relatively in tuple structure) until until the tuple's death.
Your confusion may stem from interpreting constant as the CS term
CONSTANT[1]; whereby the objects in the tuple are programming CONSTANTS, that
is, unable to change. But in reality, although a tuple (bka:StaticList) cannot
expand to add more objects, or shrink to eject existing objects, the objects
themselves CAN change their own internal state WITHOUT disrupting the immutable
harmony of the tuple.
Observe:
py class Foo(object):
pass
py foo = Foo()
py t = (1,'1', foo)
py t
(1, '1', __main__.Foo object at 0x0267BF50)
py t[-1].bar = abc
py t
(1, '1', __main__.Foo object at 0x0267BF50)
Or by expanding a list
py t = (1,2,3)
py t = t+([],)
py t
(1, 2, 3, [])
py t[-1].append('circus')
py t
(1, 2, 3, ['circus'])
[1] Which is an unfortunate side-effect of polysemy and compounded
exponentially by naive (and sometimes a purely malevolent intent when)
transformation of words into esoteric problem domains.
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Re: Awsome Python - chained exceptions
: On 12 February 2013 02:15, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: As an antidote to the ill-informed negativity of Ranting Rick's illusionary PyWarts, I thought I'd present a few of Python's more awesome features [...] You could call them PyW00ts. -[]z. -- http://mail.python.org/mailman/listinfo/python-list
Re: Awsome Python - chained exceptions
On 02/12/2013 10:01 AM, Zero Piraeus wrote: On 12 February 2013 02:15, Steven D'Aprano wrote: As an antidote to the ill-informed negativity of Ranting Rick's illusionary PyWarts, I thought I'd present a few of Python's more awesome features [...] You could call them PyW00ts. +1 QOTW -- http://mail.python.org/mailman/listinfo/python-list
A better way to accomplish loop
I have an issue with some code I have been passed: for (x, y) in [(a_dict1, a_tuple[0]), (a_dict2, a_tuple[1])]: I only noticed it as PyCharm failed to assign the str type to y, whereas it knew the tuples 0 and 1 item were type str. In the loop it flags the passing of y into a method that expects type str. I can ignore it, but looking at the loop, I cant help but think there is a better way? Any guidance would be appreciated! jlc -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeEncodeError when not running script from IDE
Just to note, PyDev does something behind the scenes (it sets the encoding for the console). You may specify which encoding you want at your launch configuration (in the 'common' tab you can set the encoding you want for the shell). Cheers, Fabio On Tue, Feb 12, 2013 at 3:12 PM, Magnus Pettersson magpetters...@gmail.comwrote: What encoding is this file? Since you're appending to it, you really need to match the pre-existing encoding, or the next program to deal with it is in big trouble. So using the io.open() without the encoding= keyword is probably a mistake. The .txt file is in UTF-8 I have got it to work now in the terminal, but i dont understand what im doing and why i didnt need to do all the unicode strings and encode mumbo jumbo in eclipse #Here kanji = u私 baseurl = uhttp://www.romajidesu.com/kanji/; url = baseurl+kanji savefile([url]) #this test works now. uses: io.open(filepath, a,encoding=UTF-8) as f: # This made the fetching of the website work. Why did i have to write url.encode(UTF-8) when url already is unicode? I feel i dont have a good understanding of this. page = urllib2.urlopen(url.encode(UTF-8)) -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: A better way to accomplish loop
On 02/12/2013 02:59 PM, Joseph L. Casale wrote: I have an issue with some code I have been passed: I had to read it about four times before I knew what you were saying. Maybe I still have it wrong. for (x, y) in [(a_dict1, a_tuple[0]), (a_dict2, a_tuple[1])]: I only noticed it as PyCharm failed to assign the str type to y, whereas it knew the tuples 0 and 1 item were type str. I think you're saying that the lint-feature of PyCharm is trying to guess the object types, and telling you there's a conflict here. I don't think you're saying that it executes incorrectly. In the loop it flags the passing of y into a method that expects type str. I can ignore it, but looking at the loop, I cant help but think there is a better way? By better, you could have meant 1) clearer for the reader 2) runs faster or takes less memory 3) fools PyCharm into guessing better in its checking. If it's #3, then I'm no real help, as I've never seen a paper on the philosophy of the PyCharm guesser. Still there are ways to express it differently, and maybe one of them will happen to please PyCharm. Name the variables to represent what they're holding. Those names might also imply type, though I wouldn't normally go out of my way to accomplish it. But if the two parts of the two tuple are strings, perhaps the tuple as a whole might be called names, or titles, or authors. However, generally a tuple is NOT expected to have the same type for all its elements. for x,y in zip((a_dict1, a_dict2), a_tuple): dicts = [a_dict1, a_dict2] for x,y in zip(dicts, a_tuple): -- DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: Generate 16+MAX_WBITS decompressable data
Terry Reedy tjre...@udel.edu wrote:
On 2/12/2013 7:47 AM, Fayaz Yusuf Khan wrote:
dcomp = zlib.decompressobj(16+zlib.MAX_WBITS)
Since zlib.MAX_WBITS is the largest value that should be passed (15),
adding 16 makes no sense. Since it is also the default, there is also no
point in providing it explicitly. Its absolute value should be between
8 and 15 for the most recent versions of the zlib library.
The above code uses a feature of the zlib library which isn't really
widely known.
From http://www.zlib.net/manual.html#Advanced (inflateInit2):
windowBits can also be greater than 15 for optional gzip decoding. Add
32 to windowBits to enable zlib and gzip decoding with automatic
header detection, or add 16 to decode only the gzip format (the zlib
format will return a Z_DATA_ERROR).
How do I generate the chunk here? From what I've been trying I'm getting
this exception:
import zlib
zlib.compress('hello')
'x\x9c\xcbH\xcd\xc9\xc9\x07\x00\x06,\x02\x15'
zlib.decompress(_, 16+zlib.MAX_WBITS)
Traceback (most recent call last):
File stdin, line 1, in module
zlib.error: Error -3 while decompressing data: incorrect header check
Try using a compressobj with 24 = wbits 32. It should work, but I
didn't try.
Marc
--
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Re: LangWart: Method congestion from mutate multiplicty
On Monday, February 11, 2013 11:28:57 PM UTC-6, zipher wrote: [...] Yeah, this is where one has to consider the idea of a unified data model (a sort of OOPv2). Right now, it's all confused because people are using their own internal, subconscious ideas of data. Indeed! The current paradigms lack concrete structures which will prevent these ever-long bickering over minutiae. Our current paradigms are actually self-defeating because they allow too much interpretation of what is correct, and what is incorrect. It's like the early pioneer days, cowboys everywhere. We need Wyatt Earp! There are natural ways of working with data that ***actually map onto the world we all share*** and there are other ways which are purely abstract and not-pragmatic however pure. (Apart from this, there is the ultra-concrete data model, like C, which only maps onto the machine architecture). This is where pretty much every computer language is today. What I'm suggesting I think is somewhat novel. The first version of OOP was too concrete in the sense that it was actually trying to make real-world objects in the machine (class Chevy(Car):). This is ridiculous. There needs to be a refactor of the OOP paradigm. In practice OOP never was used to represent real-world objects. It came to model virtual world objects, a very different world with different relationships. It became the evolution of the data type itself. The unified object model needs to do for OOP what arithmetic did for number: defined a very basic and general set of operations on the concept of quantificiation. But here were trying to do that not for quantification but for structures. Most people in the this group would probably consider this to be a fantastical idea. But aren't ALL great ideas fantastical? From as long as man has existed he has wanted to fly like a bird -- whether his wish was based on logistical expeditiously or simply a primitive egotistical rebelliousness to overcome the limits of his own physiology. It's no surprise that the initial attempts were naive at best and resulted in total embarrassment. When he attempted to borrow some flight attributes of his feathered friends by taring-and-feathering himself, he did /look/ like a bird, however, when he executed the perfect 10 swan-dive from his second story cave dwelling, only to bounce his face off the granite welcome mat, he was reminded by his audience of the one bird-like feature he already had... his brain! You see, early man wanted to fly, and knew /somehow/ it was possible, however, his folly was to attempt flight by borrowing attributes of the bird /directly/. In reality, even if could borrow /every/ flight specific attribute of the bird: light weight frame from hollow bones, large lung capacity, aerodynamic body shape and wing structure, features, etc. He would then be /himself/ a bird, and NOT a /human/ flying. Besides, a human changing into a bird is impossible... or is it?[3] [Warning: Slight tangent curve ahead!] I think a lot of the failure of achieving flight hinged around the superfluous complexity of articulated wings-- of which is something that we have trouble replicating even today with our advancements in mechanical, hydraulic, and computing technology. But articulating wings are another fine example of how intelligent design will always beat the pants off evolution. The simple technology of combining fixed wings with brute force propulsion can overcome the complex design of articulating wings and gain maintainability in the process. It seems the bird should have developed a squid-like air propulsion emanating from his anus instead of articulating wings and large breast muscles; But i digress! RR: A billion years worth of dice rolling is no replacement one human imagination! Evolution, you have created your replacement; prepare for your deprecation! [Back to the beaten path!] What early man failed to realize is that he should create a model of the bird, and then hitch a ride on the model! This is an example if utilizing an /indirect/ approach to solving the problem of human flight. However, it is still possible to solve the problem directly. Although this direct approach involves man manipulating atomic structures (using nano-technology) and then transforming cognitive state from one entity into another entity (or in-place if we're really good![1]); AKA: Shapeshifting But some rules require too much time to hack, so while the brute algorthim is chewing away for the next 100 years, we need to follow these steps: 0. Start the brute force algorithm (study nano-tech, computing) 1. in the short term use the indirect approach (aeroplane) 2. until the direct approach becomes attainable (shapeshifting) My suggestion is to create the fractal graph data type to end (and represent) all data types. (Keep all the special, high-speed matrix ideas in SciPi/VPython.) But generally, re-arrange the
Re: UnicodeEncodeError when not running script from IDE
On 02/12/2013 12:12 PM, Magnus Pettersson wrote: snip #Here kanji = u私 baseurl = uhttp://www.romajidesu.com/kanji/; url = baseurl+kanji savefile([url]) #this test works now. uses: io.open(filepath, a,encoding=UTF-8) as f: # This made the fetching of the website work. You don't show the code that actually does the io.open(), nor the url.encode, so I'm not going to guess what you're actually doing. Why did i have to write url.encode(UTF-8) when url already is unicode? I feel i dont have a good understanding of this. page = urllib2.urlopen(url.encode(UTF-8)) utf-8 is NOT unicode; they are entirely different. Unicode is conceptually 32 bits per character, and is an internal representation. There are a million or so characters defined. Nearly always when you're talking to an external device, you need bytes. Since you can't cram 32 bits into 8, you have to encode it. Examples of devices would be any file, or the console. Notice that sometimes you can use unicode directly for certain functions. For example, the Windows file name is composed of Unicode characters, so Windows has function calls that accept Unicode directly. But back to 8 bits: One encoding is called ASCII, which is simply the bottommost 7 bits. But of course it gets an error if there are any characters above 127. Other encodings try to pick an 8 bit subset of the million possible characters. Again, if you happen to have a character that's not in that subset, you'll get an error. There are also other encodings which are hard to describe, but fortunately pretty rare these days. Then there's utf-8, which uses a variable length bunch of bytes for each character. It's designed to use the ASCII encoding for characters which are below 128, but uses two or more bytes for all the other characters. So it works out well when most characters happen to be ASCII. Once encoded, a stream of bytes can only be successfully interpreted if you use the same decoding when processing them. -- DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeEncodeError when not running script from IDE
On 2013-02-12 14:24, Magnus Pettersson wrote: I have tried now to take away printing to terminal and just keeping the writing to a .txt file to disk (which is what the scripts purpose is): with open(filepath,a) as f: for card in cardlist: f.write(card+\n) The file it writes to exists and im just appending to it, but when i run the script trough eclipse, all is fine. When i run in terminal i get this error instead: File K:\dev\python\webscraping\kanji_anki.py, line 69, in savefile f.write(card+\n) UnicodeEncodeError: 'ascii' codec can't encode character u'\u898b' in position 3 2: ordinal not in range(128) When you open the file, tell it what encoding to use. For example: with open(filepath, a, encoding=utf-8) as f: for card in cardlist: f.write(card + \n) -- http://mail.python.org/mailman/listinfo/python-list
Re: Implicit conversion to boolean in if and while statements
On Wed, Feb 13, 2013 at 4:48 AM, Rick Johnson rantingrickjohn...@gmail.com wrote: Your confusion may stem from interpreting constant as the CS term CONSTANT[1]; whereby the objects in the tuple are programming CONSTANTS, that is, unable to change. Uhh, yeah. Not being Humpty Dumpty, I interpret constants to mean things that won't change. (Or, eliding the second t, as I've found a friend. But I digress.) There's just something about that word constant that really suggests a meaning of constant. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
RE: A better way to accomplish loop
I think you're saying that the lint-feature of PyCharm is trying to guess the object types, and telling you there's a conflict here. I don't think you're saying that it executes incorrectly. Hah, yeah sorry Dave that's it. Still there are ways to express it differently, and maybe one of them will happen to please PyCharm. Wasn't overly concerned with pycharm, but clarity would be more desirable. dicts = [a_dict1, a_dict2] for x,y in zip(dicts, a_tuple): Ironically, that is clearer and satisfied pycharms lint feature. Thanks! jlc -- http://mail.python.org/mailman/listinfo/python-list
Re: Python3 exec locals - this must be a FAQ
Dave Angel wrote: Thanks for this hint which surprises me again since I thought locals() by itself is a copy only. (Thanks MRAB for your correction.) As MRAB points out, I was in error on this point. I only tested it in global scope. Inside a function it doesn't seem to work. One of the two classic blunders: - Never get involved in a land war in Asia; - Never go against a Sicilian when death is on the line; - Never test locals() outside of a function and extrapolate the behaviour to inside a function! -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeEncodeError when not running script from IDE
Magnus Pettersson wrote: # This made the fetching of the website work. Why did i have to write # url.encode(UTF-8) when url already is unicode? I feel i dont have a # good understanding of this. page = urllib2.urlopen(url.encode(UTF-8)) Start here: The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!) http://www.joelonsoftware.com/articles/Unicode.html Basically, Unicode is an in-memory data format. Python knows about Unicode characters (to be technical: code points), but files on disk do not. Neither do network protocols, or terminals, or other simple devices. They only understand bytes. So when you have Unicode text, and you want to write it to a file on disk, or print it, or send it over the network to another machine, it has to be *encoded* into bytes, and then *decoded* back into Unicode when you read it from the file again. Sometimes the system will helpfully do that encoding and decoding automatically for you, which is fine when it works but when it doesn't it can be perplexing. There are many, many, many different *encoding schemes*. ASCII is one. UTF-8 is another. And then there are about a bazillion legacy encodings which, if you are lucky, you will never need to care about. Only some encodings can deal with the entire range of Unicode characters, most can only deal with a (typically small) subset of possible characters. E.g. ASCII only knows about 127 characters out of the million-plus that Unicode deals with. Latin-1 can handle close to 256 different characters. If you have a say in the matter, always use UTF-8, since it can handle the full set of Unicode characters in the most efficient manner. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeEncodeError when not running script from IDE
You don't show the code that actually does the io.open(), nor the url.encode, so I'm not going to guess what you're actually doing. Hmm im not sure what you mean but I wrote all code needed in a previous post so maybe you missed that one :) In short I basically just have: import io io.open(myfile,a,encode=UTF-8) as f: f.write(my_ustring_with_kanji) the url.encode() is my unicode string variable named url using the type built in function .encode() which was the thing i wondered why i needed to use, which you explained very well, thank you! Just one more question since all this is still a little fuzzy in my head. When do i need to use .decode() in my code? is it when i read lines from f.ex a UTF-8 file? And why didn't I have to use .encode() on my unicode string when running from within eclipse pydev? someone wrote that it has a default codec setting so maybe that handles it for me there (which is kinda dangerous since my programs wont work running outside of eclipse since i didnt do any encoding or using of unicode strings before in my script and it still worked) --Magnus -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeEncodeError when not running script from IDE
Thanks a lot Steven, you gave me a good AHA experience! :) Now I understand why I had to use encoding when calling the urllib2! So basically Eclipse PyDev does this in the background for me, and its console supports utf-8, so thats why i never had to think about it before (and why some scripts tends to fail with unicode errors when run outside of the Eclipse IDE). cheers Magnus Start here: The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!) http://www.joelonsoftware.com/articles/Unicode.html Basically, Unicode is an in-memory data format. Python knows about Unicode characters (to be technical: code points), but files on disk do not. Neither do network protocols, or terminals, or other simple devices. They only understand bytes. So when you have Unicode text, and you want to write it to a file on disk, or print it, or send it over the network to another machine, it has to be *encoded* into bytes, and then *decoded* back into Unicode when you read it from the file again. Sometimes the system will helpfully do that encoding and decoding automatically for you, which is fine when it works but when it doesn't it can be perplexing. There are many, many, many different *encoding schemes*. ASCII is one. UTF-8 is another. And then there are about a bazillion legacy encodings which, if you are lucky, you will never need to care about. Only some encodings can deal with the entire range of Unicode characters, most can only deal with a (typically small) subset of possible characters. E.g. ASCII only knows about 127 characters out of the million-plus that Unicode deals with. Latin-1 can handle close to 256 different characters. If you have a say in the matter, always use UTF-8, since it can handle the full set of Unicode characters in the most efficient manner. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Python Makefiles... are they possible?
I have written a piece of code that will be part of a larger repository of related programs. Within this repository, it is standard to issue a 'make' command to compile any desired program. Is it possible to create a Makefile to compile a simple Python program? Based on what I have come across so far, this is not (at least not typically) the way things are done with Python. Thanks for any pointers in the right direction! -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Makefiles... are they possible?
On Tue, Feb 12, 2013 at 7:44 PM, Malcolm White white@gmail.com wrote: I have written a piece of code that will be part of a larger repository of related programs. Within this repository, it is standard to issue a 'make' command to compile any desired program. Is it possible to create a Makefile to compile a simple Python program? Based on what I have come across so far, this is not (at least not typically) the way things are done with Python. Thanks for any pointers in the right direction! Python is an interpreted language. The source code is 'compiled' into bytecode when invoked. Make is a process that converts source code to compiled code, so it doesn't apply to python -- http://mail.python.org/mailman/listinfo/python-list -- Joel Goldstick http://joelgoldstick.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Makefiles... are they possible?
On 13 February 2013 00:44, Malcolm White white@gmail.com wrote: I have written a piece of code that will be part of a larger repository of related programs. Within this repository, it is standard to issue a 'make' command to compile any desired program. Is it possible to create a Makefile to compile a simple Python program? Based on what I have come across so far, this is not (at least not typically) the way things are done with Python. You can use a Makefile for anything you want in a Python project. However Python code is not (typically) compiled so it is not common practise to compile it with or without a Makefile. When part of a Python project is compiled because, for example it bundles some C code to be used within Python, the compilation needs to performed in way that will be compatible with Python so the process is normally controlled by Python, through a setup.py file. In this case compilation is done with something like 'python setup.py build' (Of course there's nothing to stop you from adding that command to a Makefile and invoking it with 'make'). I often use Makefiles in Python projects for other purposes, though, such as running tests with 'make test' or building documentation with 'make doc'. Oscar -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Makefiles... are they possible?
In article mailman.1731.1360717275.2939.python-l...@python.org, Oscar Benjamin oscar.j.benja...@gmail.com wrote: On 13 February 2013 00:44, Malcolm White white@gmail.com wrote: I have written a piece of code that will be part of a larger repository of related programs. Within this repository, it is standard to issue a 'make' command to compile any desired program. Is it possible to create a Makefile to compile a simple Python program? Based on what I have come across so far, this is not (at least not typically) the way things are done with Python. You can use a Makefile for anything you want in a Python project. However Python code is not (typically) compiled so it is not common practise to compile it with or without a Makefile. When part of a Python project is compiled because, for example it bundles some C code to be used within Python, the compilation needs to performed in way that will be compatible with Python so the process is normally controlled by Python, through a setup.py file. In this case compilation is done with something like 'python setup.py build' (Of course there's nothing to stop you from adding that command to a Makefile and invoking it with 'make'). I often use Makefiles in Python projects for other purposes, though, such as running tests with 'make test' or building documentation with 'make doc'. One thing we do in our Makefiles is find . -name '*.pyc' | xargs rm. It avoids all sorts of nasty and hard to track down bugs (consider what happens if you move a .py file from one place in your source tree to another and leave the old .pyc behind). -- http://mail.python.org/mailman/listinfo/python-list
Re: Implicit conversion to boolean in if and while statements
Rick Johnson於 2013年2月13日星期三UTC+8上午1時48分07秒寫道：
On Monday, February 11, 2013 11:55:19 PM UTC-6, Chris Angelico wrote:
On Tue, Feb 12, 2013 at 12:06 PM, 8 Dihedral wrote:
A permanently mutated list is a tuple of constant objects.
I nominate this line as bemusing head-scratcher of the week.
Actually the statement is fact IF you can grok it through the eyes of clarity.
A permanently mutated list...
A list that has been mutated permanently, that is, it cannot be changed back
into a list. psst: i have a sneaking suspicion that he his referring to
tuples, let's see.
...is a tuple...
Ha! Well in Python the immutable sequence type /is/ a tuple after all.
...of constant objects...
The tuple contains objects, and it's objects will maintain a constant
ordering (relatively in tuple structure) until until the tuple's death.
a1=[1,2,3]
tuple1=(a1,4,5,6)
tuple1
([1, 2, 3], 4, 5, 6)
a1=[1,2]
tuple1
([1, 2, 3], 4, 5, 6)
Yes, a tuple of constant objects is still not clear.
Your confusion may stem from interpreting constant as the CS term
CONSTANT[1]; whereby the objects in the tuple are programming CONSTANTS,
that is, unable to change. But in reality, although a tuple (bka:StaticList)
cannot expand to add more objects, or shrink to eject existing objects, the
objects themselves CAN change their own internal state WITHOUT disrupting the
immutable harmony of the tuple.
Observe:
py class Foo(object):
pass
py foo = Foo()
py t = (1,'1', foo)
py t
(1, '1', __main__.Foo object at 0x0267BF50)
py t[-1].bar = abc
py t
(1, '1', __main__.Foo object at 0x0267BF50)
Or by expanding a list
py t = (1,2,3)
py t = t+([],)
py t
(1, 2, 3, [])
py t[-1].append('circus')
py t
(1, 2, 3, ['circus'])
[1] Which is an unfortunate side-effect of polysemy and compounded
exponentially by naive (and sometimes a purely malevolent intent when)
transformation of words into esoteric problem domains.
--
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Re: Awsome Python - chained exceptions
On Tuesday, February 12, 2013 12:15:29 AM UTC-6, Steven D'Aprano wrote:
[snip inflammatory remarks]
I thought I'd present a few of Python's more
awesome features, starting with exception contexts.
Well that's great idea, however, in order to find this very valuable
information the searcher must not only remember an unintuitive search tag, he
must also remember /exactly/ how you misspelled the unintuitive search tag! I
sure hope you have more of these Awsome Python's to share because i fear this
one will surely be forgotten in 2 days.
If you've ever written an exception handler, you've probably written a
*buggy* exception handler:
def getitem(items, index):
# One-based indexing.
try:
return items[index-1]
except IndexError:
print (Item at index %d is missing % index - 1) # Oops!
Unfortunately, when an exception occurs inside an except or finally
block, the second exception masks the first, and the reason for the
original exception is lost:
py getitem(['one', 'two', 'three'], 5) # Python 2.6
Traceback (most recent call last):
File stdin, line 1, in module
File stdin, line 6, in getitem
TypeError: unsupported operand type(s) for -: 'str' and 'int'
But that's exactly what any sane person wants to happen. And i don't know why
your error messages are so vague because i got this message (using IDLE):
py getitem([1,2,3], 5)
Traceback (most recent call last):
File pyshell#3, line 1, in module
getitem([1,2,3], 5)
File pyshell#1, line 5, in getitem
print (Item at index %d is missing % index - 1) # Oops!
TypeError: unsupported operand type(s) for -: 'str' and 'int'
Which (by showing the offensive line) is quite clear to me. I even tried a
simplified version on the command line (to make sure IDLE was not injecting
anything) and got a better exception message, but sadly without the offending
line:
py try:
... l[10]
... except IndexError:
... {0}.format(blah)
...
Traceback (most recent call last):
File stdin, line 4, in module
NameError: name 'blah' is not defined
But in either case, both forms of the message i got are far more helpful than
the exception you posted. Did you trim the exception in an attempt to
sensationalize the problem?
But who cares about the exception message python returned when there are /so/
many abominations in this code sample. I mean, i know this is an example, but
it should not be an example of how not to code+ANYTHING+!*10
Some of the problems include:
1. You are using the print function (so we can assume you are using Python 3.x)
but then you go and use that old ugly % string interpolation syntax crap!
when you should have used the format method of strings.
print(Item at index {0} is missing.format(index-1)) # Oops!
...Oh Steven, if you only knew how we interpreted the Oops!, more like Doh!.
2. Your stdout message is not only confusing, it's a freaking lie!
Item at index %d is missing.
...Steven, i can assure you that if list[index] raises an IndexError, the
item is NOT /missing/. Neither the item OR the index even /exist/ as far as the
sequence is concerned. Contrary to your naive beliefs, Python sequences are not
initialized with every possible integer index (that the current machine can
represent) just sitting around twiddling their thumbs complaining of boredom
whilst waiting for a value to come along they can point to; can you imagine the
memory usage of such a design (flaw)?
3. Your claim that the broken code in the exception block masks the exception
that would have been raised by the code in the try block is false, because if
it's true, then you'd better find the fool who told Python to mask the try
block in the first place!
Got any more bright ideas DeAprano? (Oh gawd that felt good!)
--
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Re: Awsome Python - chained exceptions
On Tuesday, February 12, 2013 12:01:45 PM UTC-6, Zero Piraeus wrote: You could call them PyW00ts. +1 on the name -INFINITY on the execution Actually i am happy that DeAprano used the unintuitive tag now. Bad enough to use an unintuitive tag. Worse to misspell it. But it would been a crime to tarnish such an intuitive tag as PyW00ts with the clumsy teachings provided. -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeEncodeError when not running script from IDE
On 02/12/2013 07:20 PM, Magnus Pettersson wrote: You don't show the code that actually does the io.open(), nor the url.encode, so I'm not going to guess what you're actually doing. Hmm im not sure what you mean but I wrote all code needed in a previous post so maybe you missed that one :) In short I basically just have: import io io.open(myfile,a,encode=UTF-8) as f: f.write(my_ustring_with_kanji) the url.encode() is my unicode string variable named url using the type built in function .encode() which was the thing i wondered why i needed to use, which you explained very well, thank you! Just one more question since all this is still a little fuzzy in my head. When do i need to use .decode() in my code? is it when i read lines from f.ex a UTF-8 file? And why didn't I have to use .encode() on my unicode string when running from within eclipse pydev? someone wrote that it has a default codec setting so maybe that handles it for me there (which is kinda dangerous since my programs wont work running outside of eclipse since i didnt do any encoding or using of unicode strings before in my script and it still worked) decode goes from bytes to unicode, the exact reverse. And you're right, you'd need it on input from a file, and theoretically on input from a keyboard. Conceptually, the easiest (not necessarily the fastest) thing to do is to always convert any input that comes in byte form to unicode, immediately on getting it. Then all processing in the code should be done in unicode form. And you encode any output just before it goes out to a byte-device. Python 3 makes that a natural, as the string type is already unicode, and it's byte strings that are the exception. But all that really changes is the syntax you use. There are defaults all over the place on these conversions. And apparently, your IDE sets those defaults for you, which is a nasty thing, since it means things that run in the IDE will run differently outside of it. You're just lucky the difference was an error. If there weren't an error, you might have merrily been creating files with a mixture of encodings, which is a real disaster. One other place where decoding happens is in your source file. There is an optional encoding line you can place at the top of the file (immediately after the shebang line) to change how unicode literals with non-ASCII characters are interpreted. Remember your source file is a byte file edited with some text editor, and it has been encoded, deliberately or accidentally by that editor. You can avoid the issue by always using escape sequences, but if for example, you copy/paste some unicode string from an email message into your source code, you'd like it to be equivalent. If your email program, your text editor, and your Python compiler are all on the same page, it works amazingly simply. (That encoding line may affect other things; I know in Python 3, it makes non-ASCII attribute names possible, but I'm not sure if it matters in Python 2.x other than for unicode literal strings) -- DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: Awsome Python - chained exceptions
On 02/12/2013 07:47 PM, Rick Johnson wrote: ...Oh Steven, if you only knew how we interpreted the Oops!, more like Doh!. You keep using that word. I do not think it means what you think it means. Got any more bright ideas DeAprano? (Oh gawd that felt good!) Ummm... -- http://mail.python.org/mailman/listinfo/python-list
Re: string.replace doesn't removes :
On Saturday, February 9, 2013 5:04:18 AM UTC-6, Joshua Robinson wrote:
Hi Monte-Pythons,
x = this is a simple : text: that has colon
s = x.replace(string.punctuation, ); OR
s = x.replace(string.punctuation, );
print x # 'this is a simple : text: that has colon'
# The colon is still in the text
Is this a bug or am I doing something wrong ?
Not a bug, you are just expecting Python to read your mind. In actuality what
you are doing is asking the method string.replace() to replace the 32 char
string:
'!#$%\'()*+,-./:;=?@[\\]^_`{|}~'
with the null string:
...what you INTENDED to do was have Python find every occurrence the each char
in the string you passed and replace them with the null string. You are
assuming the replace method handles sequences in the manner you are projecting.
Sorry, but string#replace does not work that way. Whether or not it should is
up for debate[1].
However, you can create a loop and pass the arguments one-by-one into the
method:
py s = a:b :c: d
py for char in string.punctuation:
s = s.replace(char, )
py s
'ab c d'
But this seems really wasteful if all you want is to remove colons. Are you
just removing the colons or truly wanting to remove ALL punctuation from the
string?
REFERENCES:
[1]: Should string.replace handle list, tuple and dict arguments in addition to
strings?
py string.replace(('a', 'b', 'c'), 'abcdefgabc')
'defg'
py string.replace(['a', 'b', 'c'], 'abcdefgabc')
'defg'
py string.replace({'a':'A', 'b':'2', 'c':'C'}, 'abcdefgabc')
'A2CdefgA2C'
This would be a more consistent approach to me. Handling only string arguments
is woefully inadequate. Why would you have a programmer write a loop for this
every time?
@pydevGvR
What is the justification for not processing (at the minimum) multiple
arguments? Do you think strings will most often only need one modification?
--
http://mail.python.org/mailman/listinfo/python-list
Re: Generate 16+MAX_WBITS decompressable data
Marc Christiansen wrote: Try using a compressobj with 24 = wbits 32. It should work, but I didn't try. Er, the problem is that compressobj doesn't accept a WBIT argument. -- Fayaz Yusuf Khan Cloud architect, Dexetra SS, India fayaz.yusuf.khan_AT_gmail_DOT_com, fayaz_AT_dexetra_DOT_com +91-9746-830-823 -- http://mail.python.org/mailman/listinfo/python-list
Re: string.replace doesn't removes :
On Tuesday, February 12, 2013 10:44:09 PM UTC-6, Rick Johnson wrote:
REFERENCES:
[1]: Should string.replace handle list, tuple and dict
arguments in addition to strings?
py string.replace(('a', 'b', 'c'), 'abcdefgabc')
'defg'
[...]
And here is a fine example of how a global function architecture can
seriously warp your mind! Let me try that again!
Hypothetical Examples:
py 'abcdefgabc'.replace(('a', 'b', 'c'), )
'defg'
py 'abcdefgabc'.replace(['a', 'b', 'c'], )
'defg'
py 'abcdefgabc'.replace({'a':'A', 'b':'2', 'c':'C'})
'A2CdefgA2C'
Or, an alternative to passing dict where both old and new arguments accept the
sequence:
py d = {'a':'A', 'b':'2', 'c':'C'}
py 'abcdefgabc'.replace(d.keys(), d.values())
'A2CdefgA2C'
Nice thing about dict is you can control both sub-string and replacement-string
on a case-by-case basis. But there is going to be a need to apply a single
replacement string to a sequence of substrings; like the null string example
provided by the OP.
(hopefully there's no mistakes this time)
--
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Re: Python Makefiles... are they possible?
On Tue, 12 Feb 2013 20:06:35 -0500, Roy Smith wrote: One thing we do in our Makefiles is find . -name '*.pyc' | xargs rm. It avoids all sorts of nasty and hard to track down bugs (consider what happens if you move a .py file from one place in your source tree to another and leave the old .pyc behind). How often do you move files around in the source tree? Meanwhile, *every* time you run make, you take a performance hit on every Python module in your project, whether it has moved or not. Seems to me like a fairly heavy-handed response for something quite rare, but I suppose that depends on how often you run make. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Generate 16+MAX_WBITS decompressable data
On 2/13/2013 12:18 AM, Fayaz Yusuf Khan wrote: Marc Christiansen wrote: Try using a compressobj with 24 = wbits 32. It should work, but I didn't try. Er, the problem is that compressobj doesn't accept a WBIT argument. Changed in version 3.3: Added the method, wbits, memlevel, strategy and zdict parameters. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: Awsome Python - chained exceptions
On Wed, Feb 13, 2013 at 1:47 PM, Rick Johnson
rantingrickjohn...@gmail.com wrote:
On Tuesday, February 12, 2013 12:15:29 AM UTC-6, Steven D'Aprano wrote:
If you've ever written an exception handler, you've probably written a
*buggy* exception handler:
def getitem(items, index):
# One-based indexing.
try:
return items[index-1]
except IndexError:
print (Item at index %d is missing % index - 1) # Oops!
Unfortunately, when an exception occurs inside an except or finally
block, the second exception masks the first, and the reason for the
original exception is lost:
py getitem(['one', 'two', 'three'], 5) # Python 2.6
Traceback (most recent call last):
File stdin, line 1, in module
File stdin, line 6, in getitem
TypeError: unsupported operand type(s) for -: 'str' and 'int'
Which (by showing the offensive line) is quite clear to me.
No, the offending (not offensive) line is return items[index-1],
which doesn't feature in your traceback at all. It DOES, however,
feature in the Py3.1 double traceback (it's listed as line 4)..
1. You are using the print function (so we can assume you are using Python
3.x)
He is? Could just as easily be the print statement with a single
argument, with unnecessary parentheses around that argument. Which, if
I recall correctly, is one of the recommended approaches for making
2/3 bi-compatible code.
but then you go and use that old ugly % string interpolation syntax crap!
when you should have used the format method of strings.
print(Item at index {0} is missing.format(index-1)) # Oops!
...Oh Steven, if you only knew how we interpreted the Oops!, more like
Doh!.
No. Definitely not. Percent interpolation isn't going anywhere - core
devs have said so - and there are many occasions when it is at least
as well suited to the task as .format() is. Also, it's a notation
that's well understood *across languages* and in a variety of message
interpolation systems. Anyone who's worked with *any* of them will
understand that %s inserts a string, %d a number (in decimal), etc,
etc. Granted, the exact details after that may change (eg Python has
%r to emit the representation, while Pike uses %O for any object,
with similar notation), but the format specifiers and modifiers that
came from C are fairly stable, readable, and compact.
In what way is a trivial example like this improved by the use of
format()? The ONLY thing I can think of is that, by forcing you to put
parentheses around the argument, it avoids the issue from the original
post, which is one of operator precedence - but that's something
that's fairly easy to spot when you know what you're looking for, and
is definitely not specific to string formatting.
ChrisA
--
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Re: string.replace doesn't removes :
On 13 fév, 06:26, Rick Johnson rantingrickjohn...@gmail.com wrote:
On Tuesday, February 12, 2013 10:44:09 PM UTC-6, Rick Johnson wrote:
REFERENCES:
[1]: Should string.replace handle list, tuple and dict
arguments in addition to strings?
py string.replace(('a', 'b', 'c'), 'abcdefgabc')
'defg'
[...]
And here is a fine example of how a global function architecture can
seriously warp your mind! Let me try that again!
Hypothetical Examples:
py 'abcdefgabc'.replace(('a', 'b', 'c'), )
'defg'
py 'abcdefgabc'.replace(['a', 'b', 'c'], )
'defg'
py 'abcdefgabc'.replace({'a':'A', 'b':'2', 'c':'C'})
'A2CdefgA2C'
Or, an alternative to passing dict where both old and new arguments accept
the sequence:
py d = {'a':'A', 'b':'2', 'c':'C'}
py 'abcdefgabc'.replace(d.keys(), d.values())
'A2CdefgA2C'
Nice thing about dict is you can control both sub-string and
replacement-string on a case-by-case basis. But there is going to be a need
to apply a single replacement string to a sequence of substrings; like the
null string example provided by the OP.
(hopefully there's no mistakes this time)
d = {ord('a'): 'A', ord('b'): '2', ord('c'): 'C'}
'abcdefgabc'.translate(d)
'A2CdefgA2C'
def jmTranslate(s, table):
... table = {ord(k):table[k] for k in table}
... return s.translate(table)
...
d = {'a': 'A', 'b': '2', 'c': 'C'}
jmTranslate('abcdefgabc', d)
'A2CdefgA2C'
d = {'a': None, 'b': None, 'c': None}
jmTranslate('abcdefgabc', d)
'defg'
d = {'a': '€', 'b': '', 'c': ''}
jmTranslate('abcdefgabc', d)
'€defg€'
jmf
--
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Re: Awsome Python - chained exceptions
On Feb 13, 2013 12:00 AM, Chris Angelico ros...@gmail.com wrote: Which word? we? I'm not entirely sure, given that non-monospaced fonts get in the way. Normally people would put exactly as many carets/tildes as there are letters in the word, but aligning the text in a mono font puts the carets under we, so that clue isn't there. Sorry I assumed that on a technical list like this one folks would be viewing emails as the internet gods intended, in a nice monospace font. I don't see how leading carets would help in a proportional font; it just doesn't work well for quoting emails I think. Maybe that's why email from html clients seem to do a lot of top posting and ditch quoting (and I fear reading) emails all together. Apologies if the quoted stuff is messed up in this email. Darn phones are not good at doing proper emailing. -- http://mail.python.org/mailman/listinfo/python-list
[issue17190] _FAST opcodes do no range checking
Larry Hastings added the comment: I'm not surprised it was discussed to death long ago. And I can get behind wontfix. But let me just say that a) I think an uncrashable Python interpreter is a laudable goal, and steps we can take towards that should not be dismissed out of hand. b) I doubt a range check would kill the performance of the _FAST operands. It'd be one lookup/compare/branch each, and the branch predictor would always guess correctly. But I admit I have not tested it. c) Anyway we needn't do it at runtime. We could just as easily scan over the opcodes in the code object constructor and do the range checking there. If we only did the check when the constructor was called directly from Python, it should have no measurable performance impact, only a maintenance cost. d) I expect all these points were brought up in the original discussion. I'd like to read that--but I can't find it. Any pointers would be appreciated. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17190 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12077] Harmonizing descriptor protocol documentation
Changes by Raymond Hettinger raymond.hettin...@gmail.com: -- assignee: rhettinger - ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12077 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17136] ctypes tests fail with clang on non-OS X
Dirkjan Ochtman added the comment: libffi-3.0.12 has been released with that fix. Perhaps that should be included in future Python releases? -- nosy: +benjamin.peterson, georg.brandl, larry priority: normal - release blocker ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17136 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9400] multiprocessing.pool.AsyncResult.get() messes up exceptions
Changes by Torsten Bronger bron...@physik.rwth-aachen.de: -- nosy: +bronger ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9400 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue917120] imaplib: incorrect quoting in commands
Mauro Cicognini added the comment: The removal of the dead code causes imaplib under py3k to lose the quoting functionality that is described in documentation (except for passwords, that do get always quoted as stated). I submit that we give at least a temporary warning in the docs, and that the _quote() function is exposed to let the programmer do their own quoting when they feel it necessary. -- nosy: +Mauro.Cicognini versions: +Python 3.3 -Python 2.7 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue917120 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17191] pdb list shows unexpected code when stack frame includes a try / finally block
New submission from Abram Clark: The list command in pdb shows an unexpected portion of code after an up command enters a try / finally block in the call stack. To reproduce: pdb pdb_list_bug_reproduce.py c up list Expected behavior: Show 11 lines around line 8, throw_something(), which was the entry point to the lower stack frame. Actual behavior: Shows code centered around line 10, in the finally block, which is likely cleanup code that has nothing to do with the exception thrown. -- files: pdb_list_bug_reproduce.py messages: 181951 nosy: Abram.Clark priority: normal severity: normal status: open title: pdb list shows unexpected code when stack frame includes a try / finally block type: behavior versions: Python 2.7 Added file: http://bugs.python.org/file29047/pdb_list_bug_reproduce.py ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17191 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17170] string method lookup is too slow
Amaury Forgeot d'Arc added the comment: I left some comments on Rietveld. I wonder if PyArg_ParseTupleAndKeywords can be replaced by something that would compute and cache the set of keywords; a bit like _Py_IDENTIFIER. -- nosy: +amaury.forgeotdarc ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17170 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9285] Add a profile decorator to profile and cProfile
Changes by Giampaolo Rodola' g.rod...@gmail.com: -- nosy: +georg.brandl ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9285 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17130] Add runcall() function to profile.py and cProfile.py
Changes by Giampaolo Rodola' g.rod...@gmail.com: -- nosy: +georg.brandl ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17130 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17187] Python segfaults from improperly formed and called function
Ramchandra Apte added the comment: Perhaps types.CodeType should refuse to generate the malformed code object in the first place? Yup. -- nosy: +ramchandra.apte ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17187 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17189] Add zip64 support to shutil
Changes by R. David Murray rdmur...@bitdance.com: -- stage: - patch review versions: +Python 3.4 -Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17189 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17172] Add turtledemo to IDLE menu
Ramchandra Apte added the comment: Attached is a patch. I hope the File menu is the right place for this. I had to move the code in Lib/turtledemo.py after if __name__ ==... into main(). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17172 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17172] Add turtledemo to IDLE menu
Changes by Ramchandra Apte maniandra...@gmail.com: -- keywords: +patch Added file: http://bugs.python.org/file29048/issue.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17172 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17172] Add turtledemo to IDLE menu
Ramchandra Apte added the comment: Should this be added to Lib/idlelib/NEWS.txt ? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17172 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17192] libffi-3.0.12 import
New submission from Matthias Klose: issue for tracking the libffi-3.0.12 import. checked that builds on x86_64-linux-gnu and arm-linux-gnueabihf do work. still needs updating/checking the extra copies of: - libffi_arm_wince - libffi_msvc - libffi_osx -- components: Extension Modules messages: 181956 nosy: doko priority: normal severity: normal status: open title: libffi-3.0.12 import versions: Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17192 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue917120] imaplib: incorrect quoting in commands
R. David Murray added the comment: I don't understand what you mean by removing dead code leading to loss of functionality, unless you mean that the removal of the call to the quoting code in Python3 led to a loss of functionality relative to Python2, in which case I agree. It also led to the behavior being out of sync with the documentation. Reviewing the history of the changes (see issue 1210), it appears to me that the removal of the call to _checkquote was in fact unintentional and is a bug (it existed in the port-to-python3 patch submitted by Victor, but was commented out, which probably means he had it commented out for testing and did not notice he had not restored it). This makes the later removal of _checkquote incorrect as well. This error is primarily a consequence of imaplib having very few tests. This module needs a lot of love in Python3 from someone, and it is not an easy topic to wrap ones head around. It's on my list of things to look at, but there are a bunch of things ahead of it. For the immediate issue, it is working as documented in Python2.7, so there is nothing to do there. For Python3 we haven't had the quoting since the start, so we have the opportunity to consider changing the quoting rules if we wish...and we may have have no choice, since the new behavior has been in released versions for several Python3 versions now and starting to quote like Python2.7 did might break otherwise working code. I don't have an opinion on how to fix this this yet, since while I know more about the IMAP protocol than I did a year ago, I still don't know enough to even write the tests -- components: +email nosy: +barry ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue917120 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17192] libffi-3.0.12 import
Roundup Robot added the comment: New changeset 7727be7613f9 by doko in branch 'default': - Issue #17192: Import libffi-3.0.12. http://hg.python.org/cpython/rev/7727be7613f9 -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17192 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17136] ctypes tests fail with clang on non-OS X
Matthias Klose added the comment: libffi-3.0.12 is now imported, tracked in issue #17192. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17136 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17192] libffi-3.0.12 import
Changes by Matthias Klose d...@debian.org: -- nosy: +ronaldoussoren ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17192 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17192] libffi-3.0.12 import
Ronald Oussoren added the comment: libffi_osx is not a copy of the regular libffi, but a (fairly old) fork. I don't know how far the two branches have diverged. An important feature of liffi_osx is that is compiles cleanly when all intel and ppc related sources are compiled with '-arch ppc -arch i386 -arch x86_64' (that is, the relevant sources contain preprocessor guards to ensure the code in those files is only compiled for the right archictures). This greatly simplifies the build process because it is not necessary to build libffi a couple of times and then merge the resulting binaries. I'm -0 at this point w.r.t. trying to remove libffi_osx, that tree works and I'll work on it anyway (it is also used in PyObjC). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17192 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17193] Use binary prefixes
New submission from Serhiy Storchaka: Starting around 1998, a number of standards and trade organizations approved standards and recommendations for a new set of binary prefixes that would refer unambiguously to powers of 1024. According to these, the SI prefixes would only be used in the decimal sense, even when referring to data storage capacities: kilobyte and megabyte would denote one thousand bytes and one million bytes respectively (consistent with SI), while new terms such as kibibyte, mebibyte and gibibyte, abbreviated KiB, MiB, and GiB, would denote 1024 bytes, 1048576 bytes, and 1073741824 bytes respectively.[1] The proposed patch replaces old terms such as kB or KBytes by new terms such as KiB. [1] http://en.wikipedia.org/wiki/Binary_prefix -- assignee: docs@python components: Documentation files: binary_prefixes.patch keywords: easy, patch messages: 181961 nosy: docs@python, serhiy.storchaka priority: normal severity: normal stage: patch review status: open title: Use binary prefixes type: enhancement Added file: http://bugs.python.org/file29049/binary_prefixes.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17193 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9285] Add a profile decorator to profile and cProfile
Giampaolo Rodola' added the comment: A preliminary patch for cProfile.py is in attachment. Will make changes to profile.py later. -- Added file: http://bugs.python.org/file29050/profile.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9285 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17187] Python segfaults from improperly formed and called function
Benjamin Peterson added the comment: In general, you can generate whatever junky bytecode you want, and the eval loop will happy crash itself. Your on your own when screwing with types.CodeType. -- nosy: +benjamin.peterson ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17187 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17193] Use binary prefixes
Brett Cannon added the comment: Patch looks good except for the consistent lack of space between number and unit, e.g. 5MiB instead of 5 MiB. Is there a reason for this? -- nosy: +brett.cannon ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17193 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17170] string method lookup is too slow
Guido van Rossum added the comment: What's the status of Argument Clinic? Won't that make this obsolete? --Guido van Rossum (sent from Android phone) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17170 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17194] operator.attrgetter is slower than a lambda
Changes by Florent Xicluna florent.xicl...@gmail.com: -- title: operator.attrgetter is slow - operator.attrgetter is slower than a lambda ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17194 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
