Re: Exception Handling (C - extending python)
Am 23.10.2011 14:41, schrieb Stefan Behnel: That's just fine. If you are interested in the inner mechanics of the CPython runtime, reading the source is a very good way to start getting involved with the project. However, many extension module authors don't care about these inner mechanics and just use Cython instead. That keeps them from having to learn the C-API of CPython, and from tying their code too deeply into the CPython runtime itself. Could you elaborate a bit? What are the pros and cons of writing an extension module using the Cython API compared to using the CPyothon API? In particular, how portable is it? Can I compile a module in one and use it in the other? Don't I just tie myself to a different API, but tie myself nonetheless? Thank you! Uli -- http://mail.python.org/mailman/listinfo/python-list
Re: spawnl issues with Win 7 access rights
On 25 Okt., 02:21, Miki Tebeka miki.teb...@gmail.com wrote: Please use the subprocess module, it's the one who's actively maintained.http://docs.python.org/library/subprocess.html#replacing-the-os-spawn... Thnx again for all the answers. As stated before, I'm limited in my options. One of them just might be to switch to Python 2.5, rewrite the code that crashes using the subprocess module, and then somehow patch the library I use (which I'm not suposed to do, but... oh well :-)). I can just hope subrocess was already mature adn offering the relevant functionality in 2.5. Cheers, Nenad -- http://mail.python.org/mailman/listinfo/python-list
[wanted] python-ldap for Python 2.3 / Win32
Hi, I have spent a couple of hours asking google, browsing Pypi, SF, and of course the official www.python-ldap.org site searching for a python-ldap installer for Python 2.3 on Windows 32 bits. Unsuccessfully :( As I need to add this to an ooold Plone site, it is not easy to upgrade to a newer Python version. So, please don't tell me to upgrade ;) Many thanks by advance to the people who will help me. You can send this package via mail to gillesDOTlenfantATgmailDOTcom. -- Gilles Lenfant -- http://mail.python.org/mailman/listinfo/python-list
UnicodeError instead of UnicodeWarning
HI! For tracking the cause of a UnicodeWarning I'd like to make the Python interpreter to raise an UnicodeError exception with full stack trace. Is there a short trick to achieve this? Many thanks in advance. Ciao, Michael. -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeError instead of UnicodeWarning
2011/10/25 Michael Ströder mich...@stroeder.com: HI! For tracking the cause of a UnicodeWarning I'd like to make the Python interpreter to raise an UnicodeError exception with full stack trace. Is there a short trick to achieve this? from exceptions import UnicodeWarning from warnings import filterwarnings filterwarnings(action=error, category=UnicodeWarning) This will cause UnicodeWarnings to be raised as exceptions when they occur. Cheers, Chris -- http://rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Re: What is wrong with my code?
apometron apometron.listas.ci...@gmail.com writes: Now it is another thing, entirely. Rename1.py and Rename2.py works, but why Rename3.py dont works? Well, Rename3.py works for me, even in Windows 7. Maybe you should test it again? -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeError instead of UnicodeWarning
Michael Ströder wrote: For tracking the cause of a UnicodeWarning I'd like to make the Python interpreter to raise an UnicodeError exception with full stack trace. Is there a short trick to achieve this? You can control warning behaviour with the -W commandline option: $ cat unicodewarning_demo.py # -*- coding: utf-8 -*- def g(): ä == uä def f(n=3): if n: f(n-1) else: g() if __name__ == __main__: f() $ python unicodewarning_demo.py unicodewarning_demo.py:4: UnicodeWarning: Unicode equal comparison failed to convert both arguments to Unicode - interpreting them as being unequal ä == uä $ python -W error::UnicodeWarning unicodewarning_demo.py Traceback (most recent call last): File unicodewarning_demo.py, line 13, in module f() File unicodewarning_demo.py, line 8, in f f(n-1) File unicodewarning_demo.py, line 8, in f f(n-1) File unicodewarning_demo.py, line 8, in f f(n-1) File unicodewarning_demo.py, line 10, in f g() File unicodewarning_demo.py, line 4, in g ä == uä UnicodeWarning: Unicode equal comparison failed to convert both arguments to Unicode - interpreting them as being unequal $ -- http://mail.python.org/mailman/listinfo/python-list
Re: Exception Handling (C - extending python)
Ulrich Eckhardt, 25.10.2011 08:49: Am 23.10.2011 14:41, schrieb Stefan Behnel: That's just fine. If you are interested in the inner mechanics of the CPython runtime, reading the source is a very good way to start getting involved with the project. However, many extension module authors don't care about these inner mechanics and just use Cython instead. That keeps them from having to learn the C-API of CPython, and from tying their code too deeply into the CPython runtime itself. Could you elaborate a bit? What are the pros and cons of writing an extension module using the Cython API compared to using the CPyothon API? No cons. ;) Cython is not an API, it's a programming language. It's Python, but with extended support for talking to C/C++ code (and also Fortran). That means that you don't have to use the C-API yourself, because Cython will do it for you. In particular, how portable is it? Can I compile a module in one and use it in the other? They both use the CPython C-API internally. It's just that you are not using it explicitly in your code, so you (can) keep your own code free of CPython-isms. It's substantially more portable than the usual hand-written code, because it generates C code for you that compiles and works in CPython 2.4 up to the latest 3.3 in-development version, and also with all major C/C++ compilers, etc. It also generates faster glue code than you would write, e.g. for data type conversion and argument unpacking in function calls. So it speeds up thin wrappers automatically for you. That doesn't mean that you can't get the same level of speed and portability in hand-written code. It just means that you don't have to do it yourself. Saves a lot of time, both during development and later during the maintenance cycle. Basically, it allows you to focus on the functionality you want to implement, rather than the implementation details of CPython, and also keeps the maintenance overhead at that level for you. Don't I just tie myself to a different API, but tie myself nonetheless? There's a port to plain Python+ctypes underways, for example, which you could eventually use in PyPy. Try to do that at the C-API level. Stefan -- http://mail.python.org/mailman/listinfo/python-list
Re: What is wrong with my code?
I did it very much times, Anssi. Beyond of run it on Python 2.7 latest build, what do you suggest? Do install Python 3.2 along the Python 2.7 installation could give me any problems? cheers, Apometron http://about.me/apometron On 10/25/2011 6:11 AM, Anssi Saari wrote: apometronapometron.listas.ci...@gmail.com writes: Now it is another thing, entirely. Rename1.py and Rename2.py works, but why Rename3.py dont works? Well, Rename3.py works for me, even in Windows 7. Maybe you should test it again? -- http://mail.python.org/mailman/listinfo/python-list
Re: [wanted] python-ldap for Python 2.3 / Win32
Gilles Lenfant wrote: I have spent a couple of hours asking google, browsing Pypi, SF, and of course the official www.python-ldap.org site searching for a python-ldap installer for Python 2.3 on Windows 32 bits. Unsuccessfully :( In theory even recent python-ldap 2.4.3 should still work with Python 2.3. Please post your inquiry on the mailing-list python-l...@python.org (subscribe before post). Maybe you can convince the maintainer of the Win32 packages there. Ciao, Michael. -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] What is wrong with my code?
(Once again, please don't top-post. It makes your responses out of order) On 10/25/2011 04:24 AM, apometron wrote: I did it very much times, Anssi. Beyond of run it on Python 2.7 latest build, what do you suggest? Do install Python 3.2 along the Python 2.7 installation could give me any problems? Why don't you say publicly that you aren't using cmd ? If your file manager is not running the equivalent of python yourprogram.py filename.txt then everyone here is chasing a wild goose. Switch to the command line, issue a sequence of commands that cause the failure, and paste them in a message here. Then if it works, but doesn't from your file manager, you/we/they can address the differences from the working command line. -- DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] What is wrong with my code?
On 10/25/2011 7:34 AM, Dave Angel wrote: (Once again, please don't top-post. It makes your responses out of order) On 10/25/2011 04:24 AM, apometron wrote: I did it very much times, Anssi. Beyond of run it on Python 2.7 latest build, what do you suggest? Do install Python 3.2 along the Python 2.7 installation could give me any problems? Why don't you say publicly that you aren't using cmd ? If your file manager is not running the equivalent of python yourprogram.py filename.txt then everyone here is chasing a wild goose. Switch to the command line, issue a sequence of commands that cause the failure, and paste them in a message here. Then if it works, but doesn't from your file manager, you/we/they can address the differences from the working command line. I found out what it is. It is the File Commander giving wrong informations to the script. In Take Command command line it works sweet. I will show all this to the File Commander author and ask him some way to solve this. It turns out do the thing in command line every time is not best way. I need do it by the file manager. But the file manager was puting stones in the way. Take Command has a script language also, but I would like do the things in Python, if possible. And this difficulty with File Commander makes use Python a thing less easy to do. Question solved. It was not Take Command the problem and I was sure it was not. Enter in command line to do things is a pain. =( I mean, e-ve-ry ti-me. But then, good news, all the three scripts works smoothly in the command line. Do you believe drag and drop in the Windows Explorer can be my salvation? Cool thing to try. []s Apometron http://about.me/apometron -- http://mail.python.org/mailman/listinfo/python-list
Strange classmethod mock behavior
I'm trying to mock a classmethod in a superclass but when restoring it a strange behavior happens in subclasses (tested on Python 2.5) Anyone knows why this happens? (see test case below for details) Is there any way to restore that original method to have the original behavior? import unittest class Test(unittest.TestCase): def testClassmethod(self): class Super(): @classmethod def GetCls(cls): return cls class Sub(Super): pass self.assertEqual(Sub.GetCls(), Sub) original = Super.GetCls #Mock Super.GetCls, and do tests... Super.GetCls = original #Restore the original classmethod self.assertEqual(Sub.GetCls(), Sub) #The call to the classmethod subclass returns the cls as Super and not Sub as expected! if __name__ == '__main__': unittest.main() -- http://mail.python.org/mailman/listinfo/python-list
Re: Strange classmethod mock behavior
Fabio Zadrozny wrote: I'm trying to mock a classmethod in a superclass but when restoring it a strange behavior happens in subclasses (tested on Python 2.5) Anyone knows why this happens? (see test case below for details) Is there any way to restore that original method to have the original behavior? import unittest class Test(unittest.TestCase): def testClassmethod(self): class Super(): @classmethod def GetCls(cls): return cls class Sub(Super): pass self.assertEqual(Sub.GetCls(), Sub) original = Super.GetCls #Mock Super.GetCls, and do tests... Super.GetCls = original #Restore the original classmethod self.assertEqual(Sub.GetCls(), Sub) #The call to the classmethod subclass returns the cls as Super and not Sub as expected! if __name__ == '__main__': unittest.main() [Not related to your problem] When working with descriptors it's a good idea to use newstyle classes, i. e. have Super inherit from object. The Super.GetCls attribute access is roughly equivalent to Super.__dict___[GetCls].__get__(classmethod_instance, None, Super) and returns an object that knows about its class. So when you think you are restoring the original method you are actually setting the GetCls attribute to something else. You can avoid the problem by accessing the attribute explicitly: class Super(object): ... @classmethod ... def m(cls): return cls ... bad = Super.m good = Super.__dict__[m] class Sub(Super): pass ... Sub.m() class '__main__.Sub' Super.m = bad Sub.m() class '__main__.Super' Super.m = good Sub.m() class '__main__.Sub' -- http://mail.python.org/mailman/listinfo/python-list
Re: spawnl issues with Win 7 access rights
On 25/10/2011 08:01, Propad wrote: Thnx again for all the answers. As stated before, I'm limited in my options. One of them just might be to switch to Python 2.5, rewrite the code that crashes using the subprocess module, and then somehow patch the library I use (which I'm not suposed to do, but... oh well :-)). I can just hope subrocess was already mature adn offering the relevant functionality in 2.5. I must admit I'm more than slightly surprised by this. My test case is to use os.spawnl to run c:/windows/notepad.exe. From the docs, I would expect to use os.spawnl (os.P_WAIT, c:/windows/notepad.exe). (I only want to open notepad.exe; there's no need for additional args). These are my test cases: (1) os.spawnl ( os.P_WAIT, c:/windows/notepad.exe ) (2) os.spawnl ( os.P_WAIT, c:/windows/notepad.exe, c:/windows/notepad.exe ) (3) os.spawnl ( os.P_WAIT, c:/windows/notepad.exe, c:/windows/notepad.exe, c:/temp.txt ) And the results: == Python | Platform | Case | Result -- 2.2.2 | WinXP| 1| Works (empty notepad) 2.2.2 | WinXP| 2| Works (empty notepad) 2.2.2 | WinXP| 3| Works (notepad temp.txt) -- 2.2.2 | Win7 | 1| OSError 2.2.2 | Win7 | 2| Works (empty notepad) 2.2.2 | Win7 | 3| Works (notepad temp.txt) -- 2.7.2 | WinXP| 1| Crashes 2.7.2 | WinXP| 2| Works (empty notepad) 2.7.2 | WinXP| 3| Works (notepad temp.txt) -- 2.7.2 | Win7 | 1| Crashes 2.7.2 | Win7 | 2| Works (empty notepad) 2.7.2 | Win7 | 3| Works (notepad temp.txt) == Add to this a look at the mscrt source which ships with VS 2008 and the MSDN docs for spawnl: http://msdn.microsoft.com/en-us/library/wweek9sc%28v=vs.80%29.aspx and we see that the first args parameter must be the same as the path parameter. FWIW, at no extra cost, I went to the trouble of testing it on some flavour of Linux with Python 2.6 and got the same results as per 2.2.2 on WinXP. (Basically: everything works). Which leaves us with http://bugs.python.org/issue8036 in which recent versions of Python crash when the (arbitrary) second parameter isn't passed. And with an inexplicable behaviour change between the same version of Python running on WinXP and on Win7. It looks as though the workaround for your problem (or, possibly, your failure to fulfil some artificial parameter requirements) is to add the executable again as the third parameter. issue8036 (which also affects the execl family) has a patch waiting for review, which hopefully we can get round to fixing. As far as I can tell, the execl/spawnl family of functions isn't currently represented in the testsuite. TJG -- http://mail.python.org/mailman/listinfo/python-list
webapp development in pure python
Hi, Anyone knows a framework for webapp development? I'm not talking about javascript/html compilers and ajax frameworks. I need something that does not require javascript knowledge, just pure Python. (So qooxdoo is not really an option, because it cannot be programmed in Python. You cannot even put out a window on the center of the screen without using javascript code, and you really have to be a javascript expert to write useful applications with qooxdoo.) What I need is a programmable GUI with windows, event handlers and extensible widgets, for creating applications that use http/https and a web browser for rendering. Is there something like this already available? Thanks, Laszlo -- http://mail.python.org/mailman/listinfo/python-list
Re: webapp development in pure python
Have you considered Django ? http://www.djangoproject.com/ https://www.djangoproject.com/ Regards, Anurag On Tue, Oct 25, 2011 at 7:20 PM, Laszlo Nagy gand...@shopzeus.com wrote: Hi, Anyone knows a framework for webapp development? I'm not talking about javascript/html compilers and ajax frameworks. I need something that does not require javascript knowledge, just pure Python. (So qooxdoo is not really an option, because it cannot be programmed in Python. You cannot even put out a window on the center of the screen without using javascript code, and you really have to be a javascript expert to write useful applications with qooxdoo.) What I need is a programmable GUI with windows, event handlers and extensible widgets, for creating applications that use http/https and a web browser for rendering. Is there something like this already available? Thanks, Laszlo -- http://mail.python.org/**mailman/listinfo/python-listhttp://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: webapp development in pure python
On 25 October 2011 14:50, Laszlo Nagy gand...@shopzeus.com wrote: Hi, Anyone knows a framework for webapp development? I'm not talking about javascript/html compilers and ajax frameworks. I need something that does not require javascript knowledge, just pure Python. (So qooxdoo is not really an option, because it cannot be programmed in Python. You cannot even put out a window on the center of the screen without using javascript code, and you really have to be a javascript expert to write useful applications with qooxdoo.) What I need is a programmable GUI with windows, event handlers and extensible widgets, for creating applications that use http/https and a web browser for rendering. So you're looking for something like Google Web Toolkit but using Python instead of Java... Do you know about pyjamas (http://pyjs.org/)? I've never used it, but I think it endeavours to be what you are looking for. HTH -- Arnaud -- http://mail.python.org/mailman/listinfo/python-list
Re: webapp development in pure python
On 10/25/11 15:13, Arnaud Delobelle wrote: On 25 October 2011 14:50, Laszlo Nagygand...@shopzeus.com wrote: Hi, Anyone knows a framework for webapp development? I'm not talking about javascript/html compilers and ajax frameworks. I need something that does not require javascript knowledge, just pure Python. (So qooxdoo is not really an option, because it cannot be programmed in Python. You cannot even put out a window on the center of the screen without using javascript code, and you really have to be a javascript expert to write useful applications with qooxdoo.) What I need is a programmable GUI with windows, event handlers and extensible widgets, for creating applications that use http/https and a web browser for rendering. So you're looking for something like Google Web Toolkit but using Python instead of Java... Do you know about pyjamas (http://pyjs.org/)? I've never used it, but I think it endeavours to be what you are looking for. HTH Second that, I use it for a couple of my projects for exactly that. -- mph -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating very similar functions with different parameters
On Mon, Oct 24, 2011 at 3:29 PM, Andrew Berg bahamutzero8...@gmail.com wrote:
I want to create a decorator with two different (but very similar)
versions of the wrapper function, but without copying giant chunks of
similar code. The main difference is that one version takes extra
parameters.
def test_dec(func, extra=False):
if extra:
def wrapper(ex_param1, ex_param2, *args, **kwargs):
print('bla bla')
print('more bla')
print(ex_param1)
print(ex_param2)
func(ex_param1, ex_param2, *args, **kwargs)
else:
def wrapper(*args, **kwargs):
print('bla bla')
print('more bla')
func(*args, **kwargs)
return wrapper
If the function I'm wrapping takes ex_param1 and ex_param2 as
parameters, then the decorator should print them and then execute the
function, otherwise just execute the function. I'd rather not write
separate wrappers that are mostly the same.
Others have given more involved suggestions, but in this case you
could just make the wrapper a closure and check the flag there:
def test_dec(func, extra=False):
def wrapper(*args, **kwargs):
print('bla bla')
print('more bla')
if extra:
ex_param1, ex_param2 = args[:2]
print(ex_param1)
print(ex_param2)
func(*args, **kwargs)
return wrapper
Cheers,
Ian
--
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Re: Creating very similar functions with different parameters
Thanks for the debug modes in functional programing! Everything functional is true in CS at least in the theroy! -- http://mail.python.org/mailman/listinfo/python-list
Data acquisition
Dear friends, I have a trouble with understanding the following. I have a very short script (shown below) which works fine if I run step by step (or line by line) in Python shell (type the first line/command - press Enter, etc.). I can get all numbers (actually, there are no numbers but a long string, but this is not a problem) I need from a device: '0.3345098119,0.01069121274,0.02111624694,0.03833379529,0.02462816409,0.0774275008,0.06554297421,0.07366750919,0.08122602002,0.004018369318,0.03508462415,0.04829900696,0.06383554085, ...' However, when I start very the same list of commands as a script, it gives me the following, which is certainly wrong: [0.0, 0.0, 0.0, 0.0, 0.0,...] Any ideas? Why there is a difference when I run the script or do it command by command? === from visa import * mw = instrument(GPIB0::20::INSTR, timeout = None) mw.write(*RST) mw.write(CALC1:DATA? FDATA) a=mw.read() print a === (That is really all!) PS In this case I use Python Enthought for Windows, but I am not an expert in Windows (I work usually in Linux but now I need to run this data acquisition under Windows). -- http://mail.python.org/mailman/listinfo/python-list
Re: Data acquisition
spintronic wrote:
Dear friends,
I have a trouble with understanding the following. I have a very short
script (shown below) which works fine if I run step by step (or line
by line) in Python shell (type the first line/command - press Enter,
etc.). I can get all numbers (actually, there are no numbers but a
long string, but this is not a problem) I need from a device:
'0.3345098119,0.01069121274,0.02111624694,0.03833379529,0.02462816409,0.0774275008,0.06554297421,0.07366750919,0.08122602002,0.004018369318,0.03508462415,0.04829900696,0.06383554085,
...'
However, when I start very the same list of commands as a script, it
gives me the following, which is certainly wrong:
[0.0, 0.0, 0.0, 0.0, 0.0,...]
Any ideas? Why there is a difference when I run the script or do it
command by command?
===
from visa import *
mw = instrument(GPIB0::20::INSTR, timeout = None)
mw.write(*RST)
mw.write(CALC1:DATA? FDATA)
a=mw.read()
print a
===
(That is really all!)
PS In this case I use Python Enthought for Windows, but I am not an
expert in Windows (I work usually in Linux but now I need to run this
data acquisition under Windows).
Just in case you have a local installation of visa and it silently fails
on some import,
try to add at the begining of your script:
import sys
sys.path.append('')
When using the python shell cmd line, '' is added to sys.path by the
shell, that is one difference that can make relative imports fail in
your script.
If it's still not working, well, it means the problem is somewhere else.
JM
--
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Re: webapp development in pure python
Anyone knows a framework for webapp development? I'm not talking about javascript/html compilers and ajax frameworks. I need something that does not require javascript knowledge, just pure Python. (So qooxdoo is not really an option, because it cannot be programmed in Python. You cannot even put out a window on the center of the screen without using javascript code, and you really have to be a javascript expert to write useful applications with qooxdoo.) What I need is a programmable GUI with windows, event handlers and extensible widgets, for creating applications that use http/https and a web browser for rendering. So you're looking for something like Google Web Toolkit but using Python instead of Java... Do you know about pyjamas (http://pyjs.org/)? I've never used it, but I think it endeavours to be what you are looking for. As I told, I'm not talking about javascript/html compilers and ajax frameworks. Pyjamas is both a javascript compiler and an ajax framework. My Python module would connect to a database server and query some data, then display it in a grid. This cannot be compiled into javascript because of the database server connection. With pyjamas, I would have to create the server side part separately, the user interface separately, and hand-code the communication between the widets and the server side. I would like to use this theoretical web based framework just like pygtk or wxPython: create windows, place widgets on them, implement event handlers etc. and access the widgets and other server side resources (for example, a database connection) from the same source code. Transparently. So the web part would really just be the rendering part of the user inferface. This may not be possible at all.. My other idea was to use a freenx server and wxPython. Is it a better solution? Have anyone used this combination from an android tablet, for example? Would it work? Thanks, Laszlo -- http://mail.python.org/mailman/listinfo/python-list
Re: Data acquisition
spintronic sidorenko.and...@gmail.com wrote: Dear friends, I have a trouble with understanding the following. I have a very short script (shown below) which works fine if I run step by step (or line by line) in Python shell (type the first line/command - press Enter, etc.). I can get all numbers (actually, there are no numbers but a long string, but this is not a problem) I need from a device: '0.3345098119,0.01069121274,0.02111624694,0.03833379529,0.02462816409,0.0774275008,0.06554297421,0.07366750919,0.08122602002,0.004018369318,0.03508462415,0.04829900696,0.06383554085, ...' However, when I start very the same list of commands as a script, it gives me the following, which is certainly wrong: [0.0, 0.0, 0.0, 0.0, 0.0,...] Any ideas? Why there is a difference when I run the script or do it command by command? === from visa import * mw = instrument(GPIB0::20::INSTR, timeout = None) mw.write(*RST) mw.write(CALC1:DATA? FDATA) a=mw.read() print a === (That is really all!) PS In this case I use Python Enthought for Windows, but I am not an expert in Windows (I work usually in Linux but now I need to run this data acquisition under Windows). -- http://mail.python.org/mailman/listinfo/python-list Shot in the dark: could it be that you have to add delays to give the instrument time to adjust? When you do it from the python shell, line by line, there is a long delay between one line and the next. Nick -- http://mail.python.org/mailman/listinfo/python-list
Re: Data acquisition
In 362e368f-829e-4477-bcfc-c0650d231...@j7g2000yqi.googlegroups.com spintronic sidorenko.and...@gmail.com writes: Any ideas? Why there is a difference when I run the script or do it command by command? Are you running the same python program in both cases? Are you in the same directory in both cases? Does PYTHONPATH and/or sys.path have the same value in both cases? Show us an exact transscript of both executions. -- 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: Data acquisition
On Oct 25, 6:29 pm, Nick Dokos nicholas.do...@hp.com wrote: Shot in the dark: could it be that you have to add delays to give the instrument time to adjust? When you do it from the python shell, line by line, there is a long delay between one line and the next. Nick Hi, Nick! Thanks! You are right but it was the first thing I thought about. So I have tried to delay using sleep(t) from the time module (I also sent *OPC? or *WAI commands to a device for synchronization). However, it does not help ... Best, AS -- http://mail.python.org/mailman/listinfo/python-list
Re: Data acquisition
On Oct 25, 6:43 pm, John Gordon gor...@panix.com wrote: Thanks, John! Are you running the same python program in both cases? Yes, the same. Are you in the same directory in both cases? Does PYTHONPATH and/or sys.path have the same value in both cases? It looks that yes but how can it matter? All I need it is to import the visa module and it works well. Show us an exact transscript of both executions. There is nothing but numbers. Or do you mean something else? I do not receive any errors, only different results ... Best, AS -- http://mail.python.org/mailman/listinfo/python-list
Re: Data acquisition
On Oct 25, 6:15 pm, Jean-Michel Pichavant jeanmic...@sequans.com
wrote:
spintronic wrote:
Dear friends,
I have a trouble with understanding the following. I have a very short
script (shown below) which works fine if I run step by step (or line
by line) in Python shell (type the first line/command - press Enter,
etc.). I can get all numbers (actually, there are no numbers but a
long string, but this is not a problem) I need from a device:
'0.3345098119,0.01069121274,0.02111624694,0.03833379529,0.02462816409,0.0774275008,0.06554297421,0.07366750919,0.08122602002,0.004018369318,0.03508462415,0.04829900696,0.06383554085,
...'
However, when I start very the same list of commands as a script, it
gives me the following, which is certainly wrong:
[0.0, 0.0, 0.0, 0.0, 0.0,...]
Any ideas? Why there is a difference when I run the script or do it
command by command?
===
from visa import *
mw = instrument(GPIB0::20::INSTR, timeout = None)
mw.write(*RST)
mw.write(CALC1:DATA? FDATA)
a=mw.read()
print a
===
(That is really all!)
PS In this case I use Python Enthought for Windows, but I am not an
expert in Windows (I work usually in Linux but now I need to run this
data acquisition under Windows).
Just in case you have a local installation of visa and it silently fails
on some import,
try to add at the begining of your script:
import sys
sys.path.append('')
When using the python shell cmd line, '' is added to sys.path by the
shell, that is one difference that can make relative imports fail in
your script.
If it's still not working, well, it means the problem is somewhere else.
JM
Hi!
Thanks! I have just tried. Unfortunately, it does not work ...
Best,
AS
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Re: Data acquisition
In 86e6bfb8-17e1-4544-97ba-7299db8a8...@p16g2000yqj.googlegroups.com spintronic sidorenko.and...@gmail.com writes: Are you in the same directory in both cases? Does PYTHONPATH and/or sys.path have the same value in both cases? It looks that yes but how can it matter? All I need it is to import the visa module and it works well. If you run the two cases from different directories, and the current directory is in PYTHONPATH or sys.path, and one of the directories contains a python file named visa.py and the other doesn't, that culd account for the difference in output. Do you have access to the visa.py source code? Can you add a simple print statement near the top of the module so that we know the same visa.py module is being imported in both cases? Show us an exact transscript of both executions. There is nothing but numbers. Or do you mean something else? I do not receive any errors, only different results ... I was more interested in the exact commands you used to run both cases, rather than the output. -- 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: How to isolate a constant?
On 10/22/2011 8:46 PM, MRAB wrote: On 23/10/2011 01:26, Gnarlodious wrote: Say this: class tester(): _someList = [0, 1] def __call__(self): someList = self._someList someList += X return someList test = tester() But guess what, every call adds to the variable that I am trying to copy each time: test() [0, 1, 'X'] test() [0, 1, 'X', 'X'] ... Python will copy something only when you tell it to copy. A simple way of copying a list is to slice it: someList = self._someList[:] And another simple way: ... someList = list(self._someList) ... Alan -- http://mail.python.org/mailman/listinfo/python-list
Re: How to isolate a constant?
On Tue, Oct 25, 2011 at 1:50 PM, Alan Meyer amey...@yahoo.com wrote: Python will copy something only when you tell it to copy. A simple way of copying a list is to slice it: someList = self._someList[:] And another simple way: ... someList = list(self._someList) ... I generally prefer the latter. It's clearer, and it guarantees that the result will be a list, which is usually what you want in these situations, rather than whatever unexpected type was passed in. Cheers, Ian -- http://mail.python.org/mailman/listinfo/python-list
Python developers interested in local communities, GroupServer
My non-profit uses the GPL Python-based http://GroupServer.org platform to host local neighborhood online communities in the U.S., the UK, and New Zealand. We are users of GroupServer and not the owner of the project. We are plotting a future new features hackathon (in person in Minneapolis and perhaps simultaneously elsewhere) and are looking for python programmers with a particular interest in connecting people in local places. If you are interested in learning more, please contact us at t...@e-democracy.org or http://e-democracy.org/contact Or join the GroupServer development group - http://groupserver.org/groups/development - where we will definitely making an announcement. We will also announce it here on the Local Labs online group: http://e-democracy.org/labs Thanks, Steven Clift E-Democracy.org P.S. GroupServer is probably the best open source hybrid e-mail list/web forum out there. Not the best e-mail list. And not the best web forum. But the best fully integrated approach. Example use with some customizations: http://e-democracy.org -- http://mail.python.org/mailman/listinfo/python-list
Re: [wanted] python-ldap for Python 2.3 / Win32
I did try to build it using my current setup but it failed with some linking errors. Oh well. Google gods were nicer to me. Here is a couple alternative links. Maybe they will work for you. http://web.archive.org/web/20081101060042/http://www.agescibs.org/mauro/ http://old.zope.org/Members/volkerw/LdapWin32/ Waldemar -- http://mail.python.org/mailman/listinfo/python-list
Re: Data acquisition
Am 25.10.2011 19:22, schrieb spintronic: On Oct 25, 6:29 pm, Nick Dokosnicholas.do...@hp.com wrote: Shot in the dark: could it be that you have to add delays to give the instrument time to adjust? When you do it from the python shell, line by line, there is a long delay between one line and the next. Thanks! You are right but it was the first thing I thought about. So I have tried to delay using sleep(t) from the time module (I also sent *OPC? or *WAI commands to a device for synchronization). However, it does not help ... RST is resetting all data and CALC is somehow calculating and returning data. Without a trigger between RST and CALC, I would not expect any data... Maybe the equipment is triggering continuously e.g. every second. When you were using the shell, you had a good chance to see a trigger between RST and CALC. With a script, it's not so likely. OPC won't help, as it would wait for completion of a measurement, but if you don't trigger, it won't wait. What kind of instrument are you using? Check for the trigger command. It may be something like INIT:IMM Regards, Dietmar -- http://mail.python.org/mailman/listinfo/python-list
Re: [wanted] python-ldap for Python 2.3 / Win32
So many thanks for your valuable help Waldemar, this is exactly what I needed. I have no Windows machine to compile with the source bundle all this, and must install this directly in a production server. I'll keep these precious links and files in a trunk. Many thanks again -- Gilles Lenfant -- http://mail.python.org/mailman/listinfo/python-list
Re: Data acquisition
spintronic sidorenko.and...@gmail.com wrote in message news:362e368f-829e-4477-bcfc-c0650d231...@j7g2000yqi.googlegroups.com... Dear friends, I have a trouble with understanding the following. I have a very short script (shown below) which works fine if I run step by step (or line by line) in Python shell (type the first line/command - press Enter, etc.). I can get all numbers (actually, there are no numbers but a long string, but this is not a problem) I need from a device: '0.3345098119,0.01069121274,0.02111624694,0.03833379529,0.02462816409,0.0774275008,0.06554297421,0.07366750919,0.08122602002,0.004018369318,0.03508462415,0.04829900696,0.06383554085, ...' However, when I start very the same list of commands as a script, it gives me the following, which is certainly wrong: [0.0, 0.0, 0.0, 0.0, 0.0,...] Any ideas? Why there is a difference when I run the script or do it command by command? === from visa import * mw = instrument(GPIB0::20::INSTR, timeout = None) mw.write(*RST) mw.write(CALC1:DATA? FDATA) a=mw.read() print a === (That is really all!) PS In this case I use Python Enthought for Windows, but I am not an expert in Windows (I work usually in Linux but now I need to run this data acquisition under Windows). I'm almost certain that there is a turnaround timing issue that is causing the problem. These are common problems in data aquisition systems. The simplest solution is to loop and wait for end of line from the sending end and if necessary put in a time delay. After receiving the data, check the received data for correct format, correct first and last characters, and if possible, check sum. I've worked through this problem with rs-485 data collection systems where there is no hand shaking and would not be surprised to expect the same even with rs-232. Paul Simon -- http://mail.python.org/mailman/listinfo/python-list
How to pretty-print ctypes composite data types?
I'm using ctypes with a library that requires a handful of structure definitions. The actual definitions and usage aren't a problem. When it comes time to print out the values in a structure or array, there doesn't seem to be simple/general way to do that. Am I missing something? I presume one can recursively iterate through the fields in a structure and elements in an array, recursing on any composite types and printing the values when one finds a type, but I'm surprised that's not something that's already in the ctypes library somewhere -- the authors certainly seem to have thought of everything else. -- Grant Edwards grant.b.edwardsYow! I own seven-eighths of at all the artists in downtown gmail.comBurbank! -- http://mail.python.org/mailman/listinfo/python-list
Re: Strange classmethod mock behavior
On Tue, Oct 25, 2011 at 10:08 AM, Peter Otten __pete...@web.de wrote: Fabio Zadrozny wrote: I'm trying to mock a classmethod in a superclass but when restoring it a strange behavior happens in subclasses (tested on Python 2.5) Anyone knows why this happens? (see test case below for details) Is there any way to restore that original method to have the original behavior? import unittest class Test(unittest.TestCase): def testClassmethod(self): class Super(): @classmethod def GetCls(cls): return cls class Sub(Super): pass self.assertEqual(Sub.GetCls(), Sub) original = Super.GetCls #Mock Super.GetCls, and do tests... Super.GetCls = original #Restore the original classmethod self.assertEqual(Sub.GetCls(), Sub) #The call to the classmethod subclass returns the cls as Super and not Sub as expected! if __name__ == '__main__': unittest.main() [Not related to your problem] When working with descriptors it's a good idea to use newstyle classes, i. e. have Super inherit from object. The Super.GetCls attribute access is roughly equivalent to Super.__dict___[GetCls].__get__(classmethod_instance, None, Super) and returns an object that knows about its class. So when you think you are restoring the original method you are actually setting the GetCls attribute to something else. You can avoid the problem by accessing the attribute explicitly: class Super(object): ... @classmethod ... def m(cls): return cls ... bad = Super.m good = Super.__dict__[m] class Sub(Super): pass ... Sub.m() class '__main__.Sub' Super.m = bad Sub.m() class '__main__.Super' Super.m = good Sub.m() class '__main__.Sub' Hi Peter, thanks for the explanation. Printing it helped me understand it even better... print(Super.__dict__['GetCls']) print(Super.GetCls) classmethod object at 0x022AF210 bound method type.GetCls of class '__main__.Super' Cheers, Fabio -- http://mail.python.org/mailman/listinfo/python-list
Re: How to isolate a constant?
On Tue, Oct 25, 2011 at 6:08 PM, Dennis Lee Bieber wlfr...@ix.netcom.com wrote: Where's the line form to split those who'd prefer the first vs the second result in this sample G: unExpected = What about a string firstToLast = unExpected[:] Strings are immutable. That doesn't suffice to copy them, even assuming you would want to do so in the first place. unExpected is firstToLast True If you find yourself needing to make a copy, that usually means that you plan on modifying either the original or the copy, which in turn means that you need a type that supports modification operations, which usually means a list. If you pass in a string and then copy it with [:] and then try to modify it, you'll get an exception. If you don't try to modify it, then you probably didn't need to copy it in the first place. Cheers, Ian -- http://mail.python.org/mailman/listinfo/python-list
Re: spawnl issues with Win 7 access rights
On 10/25/2011 8:19 AM, Tim Golden wrote: On 25/10/2011 08:01, Propad wrote: Thnx again for all the answers. As stated before, I'm limited in my options. One of them just might be to switch to Python 2.5, rewrite the code that crashes using the subprocess module, and then somehow patch the library I use (which I'm not suposed to do, but... oh well :-)). I can just hope subrocess was already mature adn offering the relevant functionality in 2.5. I must admit I'm more than slightly surprised by this. My test case is to use os.spawnl to run c:/windows/notepad.exe. From the docs, I would expect to use os.spawnl (os.P_WAIT, c:/windows/notepad.exe). (I only want to open notepad.exe; there's no need for additional args). These are my test cases: (1) os.spawnl ( os.P_WAIT, c:/windows/notepad.exe ) (2) os.spawnl ( os.P_WAIT, c:/windows/notepad.exe, c:/windows/notepad.exe ) (3) os.spawnl ( os.P_WAIT, c:/windows/notepad.exe, c:/windows/notepad.exe, c:/temp.txt ) And the results: == Python | Platform | Case | Result -- 2.2.2 | WinXP | 1 | Works (empty notepad) 2.2.2 | WinXP | 2 | Works (empty notepad) 2.2.2 | WinXP | 3 | Works (notepad temp.txt) -- 2.2.2 | Win7 | 1 | OSError 2.2.2 | Win7 | 2 | Works (empty notepad) 2.2.2 | Win7 | 3 | Works (notepad temp.txt) -- 2.7.2 | WinXP | 1 | Crashes 2.7.2 | WinXP | 2 | Works (empty notepad) 2.7.2 | WinXP | 3 | Works (notepad temp.txt) -- 2.7.2 | Win7 | 1 | Crashes 2.7.2 | Win7 | 2 | Works (empty notepad) 2.7.2 | Win7 | 3 | Works (notepad temp.txt) == Add to this a look at the mscrt source which ships with VS 2008 and the MSDN docs for spawnl: http://msdn.microsoft.com/en-us/library/wweek9sc%28v=vs.80%29.aspx and we see that the first args parameter must be the same as the path parameter. FWIW, at no extra cost, I went to the trouble of testing it on some flavour of Linux with Python 2.6 and got the same results as per 2.2.2 on WinXP. (Basically: everything works). Which leaves us with http://bugs.python.org/issue8036 in which recent versions of Python crash when the (arbitrary) second parameter isn't passed. And with an inexplicable behaviour change between the same version of Python running on WinXP and on Win7. OP reports 2.6 with XP works. Did that use VS 2005? Maybe C runtime changed (regressed). Also, could there be a 32 v. 64 bit issue? -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: How to isolate a constant?
Dennis Lee Bieber wrote:
Where's the line form to split those who'd prefer the first vs the
second result in this sample G:
unExpected = What about a string
firstToLast = unExpected[:]
repr(firstToLast)
'What about a string'
explicitList = list(unExpected)
repr(explicitList)
['W', 'h', 'a', 't', ' ', 'a', 'b', 'o', 'u', 't', ' ', 'a', ' ', 's',
't', 'r', 'i', 'n', 'g']
Well, as things stand, there's a way to get whichever result you need. The
`list` constructor builds a single list from a single iterable. The list
literal enclosed by `[`, `]` makes a list containing a bunch of items.
Strings being iterable introduces a wrinkle, but `list('abcde')` doesn't
create `['abcde']` just as `list(1)` doesn't create `[1]`.
Mel.
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RE: webapp development in pure python
Quixote may be what you want, but it's been years since I've used it and I don't know if it is still alive and kicking. It was from MEMS if I remember correctly. Using django and Flex is one way to avoid html and javascript and it works great for datagrids. Fred. -- http://mail.python.org/mailman/listinfo/python-list
Re: webapp development in pure python
Laszlo Nagy gand...@shopzeus.com wrote: My Python module would connect to a database server and query some data, then display it in a grid. This cannot be compiled into javascript because of the database server connection. So what you want is for everything to happen server-side, with html output sent to the client? Perhaps you could build on top of ToscaWidgets. They encapsulate HTML JS, so you'll still need to work with them for custom widgets. With pyjamas, I would have to create the server side part separately, the user interface separately, and hand-code the communication between the widets and the server side. That's pretty much true of all non-trivial web development, though. There's a lot to be said for sucking it up and embracing traditional methods rather than flying against common wisdom and cobbling together something that works against web technologies rather than with them. -- http://mail.python.org/mailman/listinfo/python-list
[issue13251] Update string description in datamodel.rst
Roundup Robot devn...@psf.upfronthosting.co.za added the comment: New changeset 11d18ebb2dd1 by Ezio Melotti in branch 'default': #13251: update string description in datamodel.rst. http://hg.python.org/cpython/rev/11d18ebb2dd1 -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13251 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13251] Update string description in datamodel.rst
Changes by Ezio Melotti ezio.melo...@gmail.com: -- resolution: - fixed stage: patch review - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13251 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13248] deprecated in 3.2, should be removed in 3.3
Ezio Melotti ezio.melo...@gmail.com added the comment: Maybe a 2to3 fixer to convert the names should be added? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13248 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13238] Add shell command helpers to shutil module
Nick Coghlan ncogh...@gmail.com added the comment:
Considering this further, I've realised that the idea of implicit quoting for
this style of helper function is misguided on another level - the parameters to
be interpolated may not even be strings yet, so attempting to quote them would
fail:
subprocess.call(exit {}.format(1), shell=True)
1
shlex.quote(1)
Traceback (most recent call last):
File stdin, line 1, in module
File /home/ncoghlan/devel/py3k/Lib/shlex.py, line 285, in quote
if _find_unsafe(s) is None:
TypeError: expected string or buffer
I'll note that none of these problems will be unique to the new convenience API
- they're all a general reflection of the impedance mismatch between typical
shell interfaces and filenames that can contain spaces.
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[issue13234] os.listdir breaks with literal paths
Manuel de la Pena man...@canonical.com added the comment: Indeed, in our code we had to write a number of wrappers around the os calls to be able to work with long path on Windows. At the moment working with long paths on windows and python is broken in a number of places and is a PITA to work with. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13234 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13261] time.clock () has very low resolution on Linux
New submission from Elijah Merkin e...@transas.com: time.clock () has very poor time resolution on Linux (tested on Ubuntu 11.04). The result of call to clock () changes once per several seconds. On the other side, on Windows it provides very good resolution. Here is a doctest that fails on Linux: from time import sleep prev = clock () res = True for i in xrange(10): ... sleep(0.15) ... next = clock () ... res = res and (next - prev) 0.1 ... prev = next print res True Currently on Linux I am using a workaround that is attached to the issue. -- components: None files: monotime_unix.py messages: 146347 nosy: ellioh priority: normal severity: normal status: open title: time.clock () has very low resolution on Linux type: behavior versions: Python 2.6, Python 2.7 Added file: http://bugs.python.org/file23515/monotime_unix.py ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13261 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13261] time.clock () has very low resolution on Linux
STINNER Victor victor.stin...@haypocalc.com added the comment: This issue is a duplicate of the issue #10278. -- nosy: +haypo resolution: - duplicate status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13261 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10278] add time.wallclock() method
STINNER Victor victor.stin...@haypocalc.com added the comment: The issue #13261 has been marked as a duplicate of this issue. Copy of msg146347: - time.clock () has very poor time resolution on Linux (tested on Ubuntu 11.04). The result of call to clock () changes once per several seconds. On the other side, on Windows it provides very good resolution. Here is a doctest that fails on Linux: from time import sleep prev = clock () res = True for i in xrange(10): ... sleep(0.15) ... next = clock () ... res = res and (next - prev) 0.1 ... prev = next print res True Currently on Linux I am using a workaround that is attached to the issue. - The issue has also a script: http://bugs.python.org/file23515/monotime_unix.py -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10278 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13234] os.listdir breaks with literal paths
Antoine Pitrou pit...@free.fr added the comment: Thanks for the patch. Is there a reason you don't use shutil.rmtree in tearDown()? I don't know if it's our business to convert forward slashes passed by the user. Also, general support for extended paths is another can of worms ;) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13234 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10278] add time.wallclock() method
Antoine Pitrou pit...@free.fr added the comment: CLOCK_MONOTONIC, CLOCK_PROCESS_CPUTIME_ID and CLOCK_THREAD_CPUTIME_ID are optional according to POSIX, which only mandates CLOCK_REALTIME. You should mention it in the docs. You might also want to export clock_getres(): http://pubs.opengroup.org/onlinepubs/9699919799/functions/clock_getres.html -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10278 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13218] test_ssl failures on Debian/Ubuntu
Antoine Pitrou pit...@free.fr added the comment: It looks like it's been this way for a long time too. But tests have always passed here using OpenSSL 1.0.0. It's probably too difficult, and not really Python's responsibility, to determine whether SSL_OP_NO_SSLv2 is set. See http://docs.python.org/dev/library/ssl.html#ssl.SSLContext.options Rather, I think the test is simply bogus and should be disabled or removed. I think it would be good to keep a simplified/minimal (and, of course, working :-)) version of these tests. Patches welcome, anyway. I can't really test with Debian's OpenSSL. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13218 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13234] os.listdir breaks with literal paths
Manuel de la Pena man...@canonical.com added the comment: In case of my patch (I don't know about santa4nt case) I did not use shutil.remove because it was not used in the other tests and I wanted to be consistent and not add a new import. Certainly if there is not an issue with that we should use it. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13234 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13262] IDLE opens partially hidden
New submission from Aivar Annamaa aivar.anna...@gmail.com: When IDLE opens in Windows 7, its bottom edge will be hidden behind taskbar. It should position itself so that it's fully visible. -- components: IDLE messages: 146354 nosy: Aivar.Annamaa priority: normal severity: normal status: open title: IDLE opens partially hidden type: behavior versions: Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13262 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10278] add time.wallclock() method
Roundup Robot devn...@psf.upfronthosting.co.za added the comment: New changeset 35e4b7c4bafa by Victor Stinner in branch 'default': Close #10278: Add clock_getres(), clock_gettime() and CLOCK_xxx constants to http://hg.python.org/cpython/rev/35e4b7c4bafa -- nosy: +python-dev resolution: - fixed stage: - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10278 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10278] add time.wallclock() method
STINNER Victor victor.stin...@haypocalc.com added the comment: I closed maybe this issue too quickly. My commit doesn't solve the initial issue: Python doesn't provide a portable wallclock function. wallclock.patch should be updated to use: - time.clock() on Windows (use QueryPerformanceCounter) - or time.clock_gettime(CLOCK_MONOTONIC_RAW) if available - or time.clock_gettime(CLOCK_MONOTONIC) if available - or time.time() (which is usually gettimeofday()) Pseudo-code: wallclock = None if hasattr(time, 'clock_gettime') and hasattr(time, 'CLOCK_MONOTONIC_RAW'): # I understood that CLOCK_MONOTONIC_RAW is more reliable # than CLOCK_MONOTONIC, because CLOCK_MONOTONIC may be adjusted # by NTP. I don't know if it's correct. def wallclock(): return time.clock_gettime(CLOCK_MONOTONIC_RAW) elif hasattr(time, 'clock_gettime') and hasattr(time, 'CLOCK_MONOTONIC'): def wallclock(): return time.clock_gettime(CLOCK_MONOTONIC) elif os.name == 'nt': # define a new function to be able to set its docstring def wallclock(): return time.clock() else: def wallclock(): return time.time() if wallclock is not None: wallclock.__doc__ = 'monotonic time' else: del wallclock wallclock() doc should also explain that time.time() may be adjusted by NTP or manually by the administrator. -- By the way, it would be nice to expose the precision of time.clock(): it's 1/divisor or 1/CLOCKS_PER_SEC on Windows, 1/CLOCKS_PER_SEC on UNIX. -- resolution: fixed - status: closed - open ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10278 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13218] test_ssl failures on Debian/Ubuntu
Barry A. Warsaw ba...@python.org added the comment: On Oct 25, 2011, at 09:56 AM, Antoine Pitrou wrote: Antoine Pitrou pit...@free.fr added the comment: It looks like it's been this way for a long time too. But tests have always passed here using OpenSSL 1.0.0. Right, sorry, what I meant was this particular behavior (switching to SSLv3 client hello when SSLv2 is disabled) appears to have been in upstream openssl since about 2005. What's changed recently is that instead of patching openssl to disable SSLv2 (and thereby not triggering the client hello switch), Debian has started to use the no-ssl Configure option, which is what probably started allowing this test to unexpectedly succeed. It's probably too difficult, and not really Python's responsibility, to determine whether SSL_OP_NO_SSLv2 is set. See http://docs.python.org/dev/library/ssl.html#ssl.SSLContext.options Interesting, thanks for the pointer. Rather, I think the test is simply bogus and should be disabled or removed. I think it would be good to keep a simplified/minimal (and, of course, working :-)) version of these tests. Patches welcome, anyway. I can't really test with Debian's OpenSSL. I'll work up a patch. -Barry -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13218 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13226] Expose RTLD_* constants in the posix module
Roundup Robot devn...@psf.upfronthosting.co.za added the comment: New changeset c75427c0da06 by Victor Stinner in branch 'default': Issue #13226: Add RTLD_xxx constants to the os module. These constants can by http://hg.python.org/cpython/rev/c75427c0da06 -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13226 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13226] Expose RTLD_* constants in the posix module
Changes by STINNER Victor victor.stin...@haypocalc.com: -- resolution: - fixed status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13226 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12619] Automatically regenerate platform-specific modules
Roundup Robot devn...@psf.upfronthosting.co.za added the comment: New changeset 6159311f0f44 by Victor Stinner in branch 'default': Issue #12619: Expose socket.SO_BINDTODEVICE constant http://hg.python.org/cpython/rev/6159311f0f44 -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12619 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13256] Document and test new socket options
STINNER Victor victor.stin...@haypocalc.com added the comment: For #12619, I added socket.SO_BINDTODEVICE constant. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13256 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9750] sqlite3 iterdump fails on column with reserved name
Lucas Sinclair blastoc...@mac.com added the comment: I just encountered this issue today. So, it's been several months, will the patch be merged into the master branch ? Or will this never be fixed ? -- nosy: +xapple ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9750 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13263] Group some os functions in submodules
New submission from Ezio Melotti ezio.melo...@gmail.com: In Python 3.3 the os module gained a few new functions and constants: Python 3.2.2+ (3.2:58a75eeb5c8e, Sep 29 2011, 02:11:05) import os; len(dir(os)) 232 Python 3.3.0a0 (default:a50f080c22ca+, Oct 25 2011, 09:56:01) import os; len(dir(os)) 332 http://docs.python.org/dev/py3k/whatsnew/3.3.html#os lists some of these additions, and they are already grouped (e.g. the sched_* functions, the at functions, ...). Before the os API gets even more bloated, maybe we should group some of these functions in new submodules, like os.sched.*. -- components: Extension Modules messages: 146363 nosy: benjamin.peterson, ezio.melotti, georg.brandl, loewis, pitrou, rhettinger priority: normal severity: normal stage: needs patch status: open title: Group some os functions in submodules type: feature request versions: Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13263 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10197] subprocess.getoutput fails on win32
Nick Coghlan ncogh...@gmail.com added the comment: Without knowing this issue existed, I recently started working on adding some convenience APIs for shell invocation to shutil: http://bugs.python.org/issue13238 I think the getstatus and getstatusoutput APIs were copied from the commands module in 3.0 without sufficient thought being given to whether or not they fit with the design principles of the subprocess module. IMO, both should be deprecated: - they're not cross-platform - they invoke the shell implicitly, which subprocess promises never to do -- nosy: +ncoghlan ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10197 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13238] Add shell command helpers to shutil module
Nick Coghlan ncogh...@gmail.com added the comment: I discovered a couple of APIs that were moved from the commands module to the subprocess module in 3.0: http://docs.python.org/dev/library/subprocess#subprocess.getstatusoutput However, they have issues, especially on Windows: http://bugs.python.org/issue10197 So part of this patch would include deprecating those two interfaces in favour of the new shutil ones - the existing APIs break the subprocess promise of never invoking the shell implicitly. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13238 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13263] Group some os functions in submodules
Changes by STINNER Victor victor.stin...@haypocalc.com: -- nosy: +haypo ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13263 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13263] Group some os functions in submodules
Changes by Petri Lehtinen pe...@digip.org: -- nosy: +petri.lehtinen ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13263 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13256] Document and test new socket options
Changes by STINNER Victor victor.stin...@haypocalc.com: -- keywords: +patch Added file: http://bugs.python.org/file23516/socket_options_doc.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13256 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13263] Group some os functions in submodules
Changes by Ross Lagerwall rosslagerw...@gmail.com: -- nosy: +rosslagerwall ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13263 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13264] Monkeypatching using metaclass
New submission from Artem Tomilov scrapl...@gmail.com: from abc import ABCMeta class Meta(ABCMeta): def __instancecheck__(cls, instance): # monkeypatching class method cls.__subclasscheck__ = super(Meta, cls).__subclasscheck__ return super(Meta, cls).__instancecheck__(instance) def __subclasscheck__(cls, sub): return cls in sub.mro() class A(object): __metaclass__ = Meta class B(object): pass # registering class 'B' as a virtual subclass of 'A' A.register(B) issubclass(B, A) False isinstance(B(), A) # = method __subclasscheck__ is now monkeypatched True issubclass(B, A) # = desire to get 'True' because 'B' is a virtual subclass False -- components: None messages: 146366 nosy: Artem.Tomilov priority: normal severity: normal status: open title: Monkeypatching using metaclass type: behavior versions: Python 2.7 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13264 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13238] Add shell command helpers to shutil module
Nick Coghlan ncogh...@gmail.com added the comment: After a bit of thought, I realised I could use the string.Formatter API to implement a custom formatter for the shell command helpers that auto-escapes whitespace while leaving the other shell metacharacters alone (so you can still interpolate paths containing wildcards, etc). People that want to bypass the autoescaping of whitespace can do the interpolation prior to the shell call, those that also want to escape shell metacharacters can use shlex.quote explicitly. Diff can be seen here: https://bitbucket.org/ncoghlan/cpython_sandbox/changeset/f19accc9a91b -- hgrepos: +85 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13238 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13264] Monkeypatching using metaclass
Changes by Ezio Melotti ezio.melo...@gmail.com: -- nosy: +ezio.melotti ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13264 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13220] print function unable while multiprocessing.Process is being run
ben thelen_...@yahoo.com added the comment: Thanks Terry, That does solve the problem, so the bug is really with IDLE (I got a previous Issue (12967) reported which also was connected to the stdout). I changed the component to IDLE as the lib. is working as it should do. -- components: +IDLE -Library (Lib) ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13220 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8036] Interpreter crashes on invalid arg to spawnl on Windows
Vetoshkin Nikita nikita.vetosh...@gmail.com added the comment: against py3k branch? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8036 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8036] Interpreter crashes on invalid arg to spawnl on Windows
Ezio Melotti ezio.melo...@gmail.com added the comment: Now we are using Mercurial, and what was called 'py3k' on SVN is now 'default'. Since we now commit on older branches first and then merge with the most recent ones, the patch should either be against 3.2 or 2.7. You can check the devguide for more informations. -- nosy: +ezio.melotti ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8036 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13258] replace hasattr(obj, '__call__') with callable(obj)
Éric Araujo mer...@netwok.org added the comment: This change is fine for packaging. In the 2.x backport I already use callable (and damn the py3k warning) and the 3.x backport uses the incorrect hasattr(inst, '__call__'); I’ll change that to use a backported d2.compat.callable. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13258 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12618] py_compile cannot create files in current directory
Éric Araujo mer...@netwok.org added the comment: I can reproduce in 3.2 and 3.3. I’ll commit a test and patch when I get the time, or another dev can take this over. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12618 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13260] distutils and cross-compiling the extensions
Éric Araujo mer...@netwok.org added the comment: Hi Alexander, Thanks for your interest in improving Python. I’m forced to reject your request because - Python 2.7 does not get new features (and support for cross-compilation would be one). - distutils does not get new features (we had to freeze it because improvements broke many setup scripts depending on undocumented behavior or working around bugs). - This request has been made many times already: http://mail.python.org/pipermail/python-dev/2011-March/110099.html To get cross-compilation, here’s one would have to do: - Work on distutils2, the replacement for distutils and setuptools (it’s included in Python 3.3 under the “packaging” name). - Define exactly what is supported (cross-compiling from any platform to any platform for example), possibly by reviewing all other bug reports about and hashing things out on the distutils-sig mailing list. - Think about getting buildbots running to make sure we don’t get regressions. -- assignee: tarek - eric.araujo resolution: - rejected stage: - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13260 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9750] sqlite3 iterdump fails on column with reserved name
Éric Araujo mer...@netwok.org added the comment: Hi Lucas. Have you read my previous message? The patch needs to be updated. Would you like to do it? -- versions: +Python 3.3 -Python 3.1 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9750 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13234] os.listdir breaks with literal paths
Santoso Wijaya santoso.wij...@gmail.com added the comment: Even if we decide not to convert any forward slash, listdir() adds u\\*.* when the input is unicode, but it adds /*.* when it is not, before passing it off to Windows API. Hence the inconsistency and the problem Manuel saw. IMO, his patch shouldn't have differentiated if the path starts with r\\?\ and just be consistent with adding \\*.*, unicode or not. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13234 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13240] sysconfig gives misleading results for USE_COMPUTED_GOTOS
Éric Araujo mer...@netwok.org added the comment: If we truly want to enable this by default, then the defaulting should be moved to configure. This will give a more accurate portrayal in sysconfig. This sounds good. (I know little about configure/pyconfig.h, but making sysconfig more accurate is a valuable result.) P.S. We could probably get rid of the HAVE macro all together by doing all the work in the 'configure' script. Would that be a breach of backward compatibility for sysconfig? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13240 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13244] WebSocket schemes in urllib.parse
Éric Araujo mer...@netwok.org added the comment: # must always be escaped, both in path and query components. Agreed. This just follows from the Generic URI Syntax RFC, it’s not specific to WebSockets. And further: urlparse should raise an exception upon unescaped # within URLs from ws/wss schemes. I’d say that urlparse should raise an exception when a ws/wss URI contains a fragment part. I’m not sure this will be possible; from a glance at the source and a quick test, urlparse will happily break the Generic URI Syntax RFC and return a path including a # character! -- title: WebSocket schemes in urlparse - WebSocket schemes in urllib.parse ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13244 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12394] packaging: generate scripts from callable (dotted paths)
Éric Araujo mer...@netwok.org added the comment: What about Windows support? Just like with distutils: the file extension is used, not the shebang. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12394 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10197] subprocess.getoutput fails on win32
Éric Araujo mer...@netwok.org added the comment: IMO, both should be deprecated: - they're not cross-platform Isn’t the purpose of this report to fix that? :) - they invoke the shell implicitly, which subprocess promises never to do One could argue that it’s not implicit if it’s documented. Nonetheless, I agree that they don’t fit well with the subprocess promises. So, +1 on deprecating and +1 on new, safer helpers. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10197 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13218] test_ssl failures on Debian/Ubuntu
Barry A. Warsaw ba...@python.org added the comment: I'm not sure I particularly like this patch, and I can't test it on anything other than Debian/Ubuntu right now, but it does fix the test (defined as: making it pass :). AFAICT, there's no way to tell openssl to revert back to trying SSLv2 client hello when the library has been compiled with no-ssl, but still setting OP_NO_SSLv2 or OP_NO_TLSv1 kind of seems like keeping a couple of tests that can't possibly succeed (because neither v2 nor v3, nor tlsv1 will be tried). The other thing is that testing the flags on the client context doesn't seem to work: Python 3.2.2+ (3.2:03ef6108beae, Oct 25 2011, 10:57:32) [GCC 4.6.1] on linux2 Type help, copyright, credits or license for more information. import ssl cc = ssl.SSLContext(ssl.PROTOCOL_SSLv23) cc.options ssl.OP_NO_SSLv2 0 Now, the other way to go is to set OP_NO_SSLv2 on both tests and change the sense of it from False to True, so that we'd always expect the connection to succeed. I'll attach that patch next, and it does seem a bit more sane. Let me know what you think. -- Added file: http://bugs.python.org/file23517/issue13218.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13218 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13218] test_ssl failures on Debian/Ubuntu
Barry A. Warsaw ba...@python.org added the comment: Here's the diff that disables SSLv2 and changes the expected sense of the connection results. Again, I can't test this on other than Debian/Ubuntu atm, so feedback would be useful. -- Added file: http://bugs.python.org/file23518/issue13218-true.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13218 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12394] packaging: generate scripts from callable (dotted paths)
Vinay Sajip vinay_sa...@yahoo.co.uk added the comment: What about Windows support? Just like with distutils: the file extension is used, not the shebang. Please spell out for me how you see this working: I don't see it. Note that scripts have to use the correct Python even if they are invoked using an explicit path pointing into a virtual environment. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12394 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12394] packaging: generate scripts from callable (dotted paths)
Vinay Sajip vinay_sa...@yahoo.co.uk added the comment: To expand on what I said about not seeing how things will work under Windows: are we going to place .exe launchers adjacent to the script, like setuptools does? If the script just has a shebang of #!/usr/bin/env python, how is the launcher supposed to determine the exact Python to use from that, in a venv scenario where multiple Pythons will be installed? Scripts in virtual envs are supposed to run if invoked, even if the env is not on the PATH. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12394 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12641] Remove -mno-cygwin from distutils
Seppo Yli-Olli seppo.ylio...@gmail.com added the comment: Would it be practical to have a trivial compilation test to see if we are capable of using GCC with -mno-cygwin and if so, use it, otherwise drop off? I think GNU autotools uses a similar strategy for detecting compiler capabilities. -- nosy: +Seppo.Yli-Olli ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12641 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13017] pyexpat.c: refleak
Petri Lehtinen pe...@digip.org added the comment: The patch is not correct: modelobj must not be decref'd, because it has been inserted to the args tuple with the reference-stealing 'N' format. args is later decref'd in function's cleanup code after finally:. -- keywords: -after moratorium resolution: - rejected stage: patch review - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13017 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13263] Group some os functions in submodules
Martin v. Löwis mar...@v.loewis.de added the comment: I think there is a value to use the very same function names in the posix module as in the posix API. The posix API (and C in general) is also flat, and uses the prefix convention. People who look at the function lists will know to ignore blocks of functions by prefix if they don't need them. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13263 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13016] selectmodule.c: refleak
Petri Lehtinen pe...@digip.org added the comment: PySequence_Fast_GET_ITEM expects that the object is valid and the index is within bounds, and never returns NULL. There's no need to decref and actually there's even no need to check the return value of PySequence_Fast_GET_ITEM. -- resolution: - rejected stage: patch review - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13016 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13234] os.listdir breaks with literal paths
Martin v. Löwis mar...@v.loewis.de added the comment: This issue is getting messy. I declare that this issue is *only* about the original problem reported in msg146031. When that is fixed, this issue will be closed, and any further issues need to be reported separately. As for the original problem, ISTM that the right fix is to replace namebuf[len++] = '/'; with namebuf[len++] = '\\'; No further change should be necessary. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13234 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13234] os.listdir breaks with literal paths
Santoso Wijaya santoso.wij...@gmail.com added the comment: Addressing patch comments. -- Added file: http://bugs.python.org/file23519/issue13234_py33_v3.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13234 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13263] Group some os functions in submodules
Ezio Melotti ezio.melo...@gmail.com added the comment: Of the new ones, only the sched_* ones share a common prefix, the *xattr and *at functions share a common suffix, and it's difficult to find them e.g. in dir() (also it's difficult to find other common os functions among all the names). The fact that the Posix API and C in general use a flat API doesn't seem to me a valid reason to do the same in Python. Having the same name is a good reason to avoid sched.*, even if I don't think that having sched.* will make finding/recognizing these functions much more difficult. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13263 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13234] os.listdir breaks with literal paths
Santoso Wijaya santoso.wij...@gmail.com added the comment: Fair enough. Simplifying. -- Added file: http://bugs.python.org/file23520/issue13234_py33_v4.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13234 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13263] Group some os functions in submodules
Charles-François Natali neolo...@free.fr added the comment: I think there is a value to use the very same function names in the posix module as in the posix API. It would still be the case, except that they'd live in distinct submodule. The posix API (and C in general) is also flat, and uses the prefix convention. That's because C doesn't have namespaces: it's certainly due to this limitation, and not a design choice (and when you think about it, there is a namespace hierarchy, in the header files: sys/sched.h, attr/xatr.h, etc.). -- nosy: +neologix ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13263 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
