ast wrote:
Hello
I saw in a code from a previous message in this forum
a curious function argument.
def test(x=[0]):
print(x[0]) ## Poor man's object
x[0] += 1
test()
0
test()
1
test()
2
I understand that the author wants to implement a global
variable x . It would
On 7 November 2014 15:46, Paul Moore p.f.mo...@gmail.com wrote:
To that end, I'd like to get an idea of what sort of access to Windows
a typical Unix developer would have.
Thanks to all who contributed to this thread.
Based on the feedback, I think it's going to be useful to provide two
John Ladasky wrote:
I have taught Python to several students over the past few years. As I
have worked with my students, I find myself bothered by the programming
idiom that we use to determine whether a module is being executed or
merely imported:
if __name__ == '__main__':
The use
Chris Kaynor wrote:
I was thinking along the lines of replacing:
if __name__ == __main__:
block of code
with
@main
def myFunction()
block of code
Both blocks of code will be called at the same time.
You can't guarantee that, because you cannot tell ahead of time when the if
Ian Kelly wrote:
On Fri, Nov 14, 2014 at 12:36 AM, Cameron Simpson c...@zip.com.au wrote:
On 13Nov2014 15:48, satishmlm...@gmail.com satishmlm...@gmail.com
wrote:
import sys
for stream in (sys.stdin, sys.stdout, sys.stderr):
print(stream.fileno())
io.UnsupportedOperation:
Steven D'Aprano steve+comp.lang.pyt...@pearwood.info:
if __name__ == '__main__' or condition():
print still executing
main()
print done loading
(I haven't ever done *all* of these things in a *single* file, but I
have done all these things at one time or another.)
There's no way
Terry Reedy wrote:
On 11/13/2014 6:11 PM, Rick Johnson wrote:
# The parse functions have no idea what to do with
# Unicode, so replace all Unicode characters with x.
# This is safe so long as the only characters germane
# to parsing the structure of Python are 7-bit
On 15/11/2014 07:42, Richard Riehle wrote:
Mayank,
Thanks. I have only been using Python for about four years, so there
are features I have only recently discovered. Decorators are one of
them. So far, I encounter other Python users who are also unfamiliar
with them. When I discovered
Mark Lawrence breamore...@yahoo.co.uk:
On 15/11/2014 07:42, Richard Riehle wrote:
When I discovered them, I instantly saw how they could be valuable.
Would you please be kind enough to get a PhD in interspersing your
replies or bottom posting rather than top posting, thank you.
I'd take
What are the basics of implement web hooks with python?
I need some detail tutorial in this topic.
Thanks
--
https://mail.python.org/mailman/listinfo/python-list
pythonista wrote:
I am developing a python application as a contractor.
I would like to know if someone can provide me with some insight into the
problems that then infrastructure team has been having.
The scope of the project was to install python 2.7.8 and 4 modules/site
packages on a
On 2014-11-15, Marko Rauhamaa ma...@pacujo.net wrote:
Tim Chase python.l...@tim.thechases.com:
And decorators are used pretty regularly in just about every code-base
that I've touched (I've been programming in Python since early 2004,
so I've maintained pre-2.4 code without decorators and
Richard Riehle wrote:
Decorators are new in Python, so there are not a lot of people using them.
The principle of decorators themselves is as old as Python itself. You could
implement them as far back as Python 1.5, if not older:
[steve@ando ~]$ python1.5
Python 1.5.2 (#1, Aug 27 2012,
On 2014-11-15, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote:
pythonista wrote:
I am developing a python application as a contractor.
I would like to know if someone can provide me with some insight into the
problems that then infrastructure team has been having.
The scope
On 11/14/2014 08:01 PM, pythonista wrote:
Can anyone provide me with insight as to the scope what the problem could
have been?
Well the fact is that RHEL 6 uses Python 2.6 as a core system package.
Many system utilities depend on it, so it cannot be replaced with a
newer version. You must
On 11/15/2014 08:15 AM, Steven D'Aprano wrote:
A fresh linux build of Red Hat Linux 6? RHL 6 was discontinued in 2000.
Yes I know you're making a point about not assuming anything, but the
odds are very good that the OP meant RHEL6.
And meaning RHEL6, there are some good reasons why the
Hi
I needed a function f(x) which looks like sinus(2pi.x) but faster.
I wrote this one:
--
from math import floor
def sinusLite(x):
x = x - floor(x)
return -16*(x-0.25)**2 + 1 if x 0.5 else 16*(x-0.75)**2 - 1
--
then i used module timeit
On 11/14/2014 08:01 PM, pythonista wrote:
The scope of the project was to install python 2.7.8 and 4 modules/site
packages on a fresh linux build.
I neglected to put the URL for software collections in my reply to you.
Here it is.
https://www.softwarecollections.org/en/scls/rhscl/python27/
On 11/15/2014 10:13 AM, Michael Torrie wrote:
If it's a package that won't conflict, such as Python 2.4, you can
Ahem, that should have been 3.4
--
https://mail.python.org/mailman/listinfo/python-list
ast wrote:
Hi
I needed a function f(x) which looks like sinus(2pi.x) but faster.
I wrote this one:
--
from math import floor
def sinusLite(x):
x = x - floor(x)
return -16*(x-0.25)**2 + 1 if x 0.5 else 16*(x-0.75)**2 - 1
--
ast nom...@invalid.com Wrote in message:
Hi
I needed a function f(x) which looks like sinus(2pi.x) but faster.
I wrote this one:
--
from math import floor
def sinusLite(x):
x = x - floor(x)
return -16*(x-0.25)**2 + 1 if x 0.5 else 16*(x-0.75)**2 - 1
On Sat, 15 Nov 2014 18:07:30 +0100, ast wrote:
I needed a function f(x) which looks like sinus(2pi.x) but faster.
I wrote this one:
--
from math import floor
def sinusLite(x):
x = x - floor(x)
return -16*(x-0.25)**2 + 1 if x 0.5 else 16*(x-0.75)**2 - 1
On Sat, Nov 15, 2014 at 10:07 AM, ast nom...@invalid.com wrote:
Hi
I needed a function f(x) which looks like sinus(2pi.x) but faster.
I wrote this one:
--
from math import floor
def sinusLite(x):
x = x - floor(x)
return -16*(x-0.25)**2 + 1 if x 0.5 else
On 11/15/2014 7:28 AM, Steven D'Aprano wrote:
Terry Reedy wrote:
On 11/13/2014 6:11 PM, Rick Johnson wrote:
# The parse functions have no idea what to do with
# Unicode, so replace all Unicode characters with x.
# This is safe so long as the only characters germane
#
On 11/15/2014 8:24 AM, Marko Rauhamaa wrote:
I'd take top-posting if I were enlightened about how decorators could be
valuable.
Here is part of the original rationale.
@deco(arg)
def f: suite
is (for this discussion) equivalent to
def f: suite
f = deco(arg)(f)
The latter requires writing
Now, I'm getting these errors:
ImportError: cannot import name ...
and
AttributeError: 'module' object has no attribute ...
(what is 'module'?)
Is there a way to resolve this without having to restructure my code
every couple of days?
I thought using imports of the form:
from module
Charles T. Smith cts.private.ya...@gmail.com writes:
Now, I'm getting these errors:
Please reduce the problem to a minimal, complete example demonstrating
the behaviour URL:http://sscce.org/ so that you can show us exactly
what's happening.
AttributeError: 'module' object has no attribute
Grant Edwards wrote:
On 2014-11-15, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info
wrote:
pythonista wrote:
I am developing a python application as a contractor.
I would like to know if someone can provide me with some insight into
the problems that then infrastructure team has
On Sat, 15 Nov 2014 22:52:33 +, Charles T. Smith wrote:
Now, I'm getting these errors:
ImportError: cannot import name ...
and
AttributeError: 'module' object has no attribute ...
It would be useful to know what you're actually trying to import and what
the complete error
On Sun, Nov 16, 2014 at 12:08 PM, Steven D'Aprano
steve+comp.lang.pyt...@pearwood.info wrote:
Assuming it was RHEL 6, then installing Python 2.7 from source as a separate
application from the system Python should be trivially easy, half an hour's
work. Download the source, untar, run
On 11/15/2014 06:08 PM, Steven D'Aprano wrote:
Assuming it was RHEL 6, then installing Python 2.7 from source as a separate
application from the system Python should be trivially easy, half an hour's
work. Download the source, untar, run ./configure, make, make altinstall
and you should be
On Sun, Nov 16, 2014 at 12:57 PM, Michael Torrie torr...@gmail.com wrote:
In my last system administration job, we forbade installing from source,
at least in the manner you are describing. It's a maintenance
nightmare. Especially when it comes time to upgrade the system and get
things up
Hi, ALL,
C:\Documents and Settings\Igor.FORDANWORK\Desktop\winpdbpython
Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit
(Intel)] on win32
Type help, copyright, credits or license for more information.
from a.b import c
print c.classA
class 'a.b.c.classA'
On Sun, Nov 16, 2014 at 3:12 PM, Igor Korot ikoro...@gmail.com wrote:
In the https://docs.python.org/2/library/inspect.html, it says it is
located in Lib/inspect.py.
What am I missing? Or its only for 3.x?
You need to import it. If you're curious, you can find out exactly
where it's imported
Igor Korot ikoro...@gmail.com Wrote in message:
Hi, ALL,
C:\Documents and Settings\Igor.FORDANWORK\Desktop\winpdbpython
Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit
(Intel)] on win32
Type help, copyright, credits or license for more information.
from a.b import c
print
Python's attempt to solve the external dependencies problem
has yet to produce the results that many people, including
myself, would like.
Actually, Python is not alone in this deficiency, no, Python
is just *ANOTHER* language in a *STRING* of languages over
the years who has *YET AGAIN*
On Sun, Nov 16, 2014 at 4:01 PM, Rick Johnson
rantingrickjohn...@gmail.com wrote:
Creating an implicit name resolution system (aka: import)
to abstract away an explicit name resolution system
(file-paths) has resulted in more problems that it can solve:
1. Name clashes!
2. Smaller
On Fri, Nov 14, 2014 at 10:42 AM, Empty Account empty...@gmail.com wrote:
Hi,
I am thinking about writing a load test tool in Python, so I am interested
in how I can create the most concurrent threads/processes with the fewest OS
resources. I would imagine that I/O would need to be
On Thu, Nov 13, 2014 at 3:48 PM, satishmlm...@gmail.com wrote:
import sys
for stream in (sys.stdin, sys.stdout, sys.stderr):
print(stream.fileno())
io.UnsupportedOperation: fileno
Is there a workaround?
--
https://mail.python.org/mailman/listinfo/python-list
Works for me,
On Sun, Nov 16, 2014 at 4:25 PM, Dan Stromberg drsali...@gmail.com wrote:
Works for me, although it's a little different in Jython:
$ pythons --command 'import sys; print(sys.stdin.fileno())'
/usr/local/jython-2.7b3/bin/jython good org.python.core.io.StreamIO@170ed6ab
Huh, that is curious.
Hello,
I am CPython 3.4+ user on Linux.
I am writing a little library for myself to improve the traceback module --
print_exc() and friends. I want to include the module name, class name (if
possible), and function name.
Some background: traceback.print_exc() iterates through traceback
On Sun, Nov 16, 2014 at 4:25 PM, kevina...@gmail.com wrote:
When super().__init__() is called, a 'magic' local appears in frame.f_locals
called '__class__'. Helpfully, it has the correct class for the context,
which will differ from type(self). (I discovered this magic local by poking
Apologies for previous code example. Yes, the 'def class' should read: 'class'.
Writing a sample to better demonstrate the issue made me realize that super()
is doing something special. It is injecting the magic '__class__' local.
I should rephrase my question: How do I get the declaring
Charles T. Smith cts.private.ya...@gmail.com writes:
Now, I'm getting these errors:
ImportError: cannot import name ...
and
AttributeError: 'module' object has no attribute ...
(what is 'module'?)
Is there a way to resolve this without having to restructure my code
every couple of
I made the switch to python 3 about two months ago, and I have to say I
love everything about it, *especially* the change to using only bytes and
str (no more unicode! or... everything is unicode!) As someone who works
with embedded devices, it is great to know what data I am working with.
Garrett Berg googb...@gmail.com writes:
I made the switch to python 3 about two months ago, and I have to say
I love everything about it, *especially* the change to using only
bytes and str (no more unicode! or... everything is unicode!) As
someone who works with embedded devices, it is great
Changes by Ned Deily n...@acm.org:
--
assignee: ned.deily
components: Build
nosy: ned.deily
priority: normal
severity: normal
status: open
title: PEP 477 (ensurepip backport to 2.7.9): make install and make
altinstall integration
versions: Python 2.7
Roundup Robot added the comment:
New changeset 3537994fa43b by Serhiy Storchaka in branch '2.7':
Issue #22193: Fixed integer overflow error in sys.getsizeof().
https://hg.python.org/cpython/rev/3537994fa43b
New changeset df5c6b05238e by Serhiy Storchaka in branch '3.4':
Issue #22193: Fixed
Roundup Robot added the comment:
New changeset f4e75efdc7f1 by Serhiy Storchaka in branch 'default':
Issue #22823: Use set literals instead of creating a set from a tuple.
https://hg.python.org/cpython/rev/f4e75efdc7f1
--
___
Python tracker
Serhiy Storchaka added the comment:
Can you also make a separate mock patch and assign it to Michael Foord for
review?
Here is a patch. It also replaces constructing sets from generators with set
comprehensions.
--
assignee: serhiy.storchaka - michael.foord
nosy: +michael.foord
Serhiy Storchaka added the comment:
Also fixed an error in _PySys_GetSizeOf declaration (thanks yomgui1). Thanks
all for reviews and found bugs.
--
stage: patch review - resolved
status: open - closed
___
Python tracker rep...@bugs.python.org
roskakori added the comment:
I just released a package on PyPI that adds various EBCDIC codecs for Python
2.6+ and Python 3.1+, see https://pypi.python.org/pypi/ebcdic.
I agree with Marc-Andre, maintaining this is easier as separate package.
--
___
STINNER Victor added the comment:
There are more and more codecs on PyPI. I would be nice to have a list
somewhere.
@roskakori: Could you please create a page at https://wiki.python.org/ ?
Example:
https://wiki.python.org/moin/Codecs
--
___
Python
Dave Tian added the comment:
Hi David,
Thanks for your quick response. I have tried Python 3.4.2 using
urllib.request.urlopen() - still not working. Below is the backtrace. I am not
sure if this is a bug of PySSL_SSLread, which returns nothing yet without
timeout. If you want me to dig into
Changes by Stefan Behnel sco...@users.sourceforge.net:
Removed file: http://bugs.python.org/file31421/faster_PyEval_SliceIndex.patch
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue18813
___
Antoine Pitrou added the comment:
+1 on the principle.
reference count printing is duplicated (lifecycle prints it at
shutdown, pythonrun at the interactive prompt)
You could make it an API in object.c.
* pythonrun references PyInspect_Flag directly without an extern
declaration
*
R. David Murray added the comment:
I won't be the one, as I'm not conversant with the ssl C code. What would be
helpful right now would be a recipe for reproducing the problem.
--
nosy: +alex, pitrou
___
Python tracker rep...@bugs.python.org
Roundup Robot added the comment:
New changeset cf5b910ac4c8 by Raymond Hettinger in branch 'default':
Issue #22824: Simplify reprlib output format for empty arrays
https://hg.python.org/cpython/rev/cf5b910ac4c8
--
___
Python tracker
R. David Murray added the comment:
Well, it can be the network, even though it isn't typically (and some devices
don't support it...I'm pretty sure I remember doing it on a Cisco, though I
wouldn't swear to it without testing :). Same is true for broadcast, though
that would be *really*
Serhiy Storchaka added the comment:
Are there any benchmarks?
--
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue18813
___
___
Python-bugs-list
Travis Thieman added the comment:
Why is it insufficient to run a synchronous 'filter' over the list returned by
'Pool.map'? These functional constructs are inherently composable, and we
should favor composing simple implementations of each rather than implementing
special cases of them
Ben Yelsey added the comment:
Hi, could you please list more exact steps to reproduce, e.g. directory/file
layout and import statements?
--
nosy: +inlinestyle
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue21614
Éric Araujo added the comment:
I would not touch any internal parts of distutils, such as TextFile. It is not
a public class meant for general usage. The code is not ideal but not broken.
--
___
Python tracker rep...@bugs.python.org
Stefan Behnel added the comment:
As mentioned, the fannkuch benchmark benefits quite a bit from the fast path,
by 8%. It was a while ago when I tested, though, so I don't have exact numbers
ATM.
--
___
Python tracker rep...@bugs.python.org
Вячеслав added the comment:
These addresses are used by each interface in the network and they can not be
the address of the interface, of course have the technology ip-unnumbered. But
it's more a special case.
but I was confused behavior:
set(ip_network(u'192.168.1.0/29'))
Travis Thieman added the comment:
The attached patch includes the first element in args in _execute_child to the
OSError exception subclass. This correctly populates the 'filename' field on
the resulting exception. A test is also included that fails without the patch.
--
keywords:
Вячеслав added the comment:
Probably worth noting that network is unnumbered in ip_network and ip_interface
functions. Based on this flag to decide whether there is a possibility to use
the network address and broadcast address in the network
What do you think about this?
--
Terry J. Reedy added the comment:
mock patch LGTM
--
stage: patch review - commit review
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue22823
___
Raymond Hettinger added the comment:
IMO, the _non_defaults set comprehension in mock.py ought to be replaced with a
set of internable string constants.
--
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue22823
koobs added the comment:
I only attached the 2.7 build log because the failures from 3.4 and 3.x are
identical, copying them here for completeness:
From 3.4:
==
ERROR: test_arp_getnode (test.test_uuid.TestUUID)
New submission from Brecht Machiels:
set's add() method would be a little bit more useful if it would return True if
the added value was already present in the set, and False if it wasn't (or the
other way around). Similarly, discard() could report whether the discarded
value was present in
R. David Murray added the comment:
Hmm. The fact that it could be either way around makes it less attractive.
That is, if it isn't intuitively obvious what the truth value would mean, it is
probably a bad idea to have this behavior.
--
nosy: +r.david.murray, rhettinger
New submission from Ned Deily:
As part of PEP 477, the attached patch backports to Python 2.7.9 the configure
and Makefile integration for ensurepip from Python 3 (PEP 453 / Issue19553).
As described in PEP 477, for Python 2 ensurepip is not enabled by default by
configure. If there are no
Raymond Hettinger added the comment:
This has come up once before and it was rejected for several reasons including
the one David mentioned.
In Python, code reads more clearly with the usual:
for elem in iterable:
if elem not in seen:
seen.add(elem)
Terry J. Reedy added the comment:
OK, someone can copy and paste this.
non_defaults = {
'__get__', '__set__', '__delete__', '__reversed__', '__missing__',
'__reduce__', '__reduce_ex'__, '__getinitargs__', '__getnewargs__',
'__getstate__', '__setstate__', '__getformat__',
New submission from Roy Smith:
At https://docs.python.org/2/library/hmac.html, hmac.new() is shown as
hmac.new(key[, msg[, digestmod]])
This implies that digestmod can only be given if msg is given. This is
incorrect. Either can be given without the other.
--
assignee: docs@python
Changes by Berker Peksag berker.pek...@gmail.com:
--
nosy: +berker.peksag
stage: - patch review
versions: +Python 3.4
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue22536
___
Nick Coghlan added the comment:
It turns out *all* the global config variations are in pydebug.h (and they're
basically the only thing in there, aside from the environment variable access
macro). That seems a little weird to me (perhaps historical due to the early
global config variables
Nick Coghlan added the comment:
I think this is ready to go now, unless anyone spots any major flaws I missed.
--
stage: patch review - commit review
Added file: http://bugs.python.org/file37204/split_pythonrun_v3.diff
___
Python tracker
Nick Coghlan added the comment:
Oops, global config variations above should have been global config variable
declarations. I guess my brain decided that was too much typing and jammed the
last two words together :)
--
___
Python tracker
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