date:20090320

[issue5513] What's New should say VERY CLEARLY that the type file is gone

2009-03-20 Thread David W. Lambert


David W. Lambert lamber...@corning.com added the comment:

My file class extends text files with seek or read through condition or 
pattern, providing an awk like pattern{action} task separation.

If I allow a pre-existing stream into my constructor (subprocess.Popen 
my favorite) I still suffer the same garbage collection problem.

class file(io.TextIOWrapper):
'add condition matching to a stream'
def __init__(self,stream_or_name):
a = stream_or_name
buffer = (a.buffer if isinstance(a, io.TextIOWrapper)
   else io.BufferedReader(io.FileIO(a, 'r')))
super().__init__(buffer)

Use this on a stream whose reference count goes to zero causes
ValueError: I/O operation on closed file.  Increasing stream's reference 
count by saving it with the object corrects it.

I appreciate your considerations.
Dave.

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[issue5507] ctypes configuration fails on mips-linux (and probably Irix)

2009-03-20 Thread Roumen Petrov


Roumen Petrov bugtr...@roumenpetrov.info added the comment:

please find already open issue and close this one.

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[issue4625] IDLE won't open anymore, .idlerc unaccessible

2009-03-20 Thread Timothy Zhang


Timothy Zhang z...@live.cn added the comment:

I meet the same problem and have it fixed. I use Python 2.5.2 on Windows XP.

This is my solution:
1. Choose Tool-Folder Option in your explorer menu, then click View
tab, uncheck use simple file sharing(recommended).
2. Right click on C:\Documents and Settings\YourName\.idlerc folder,
then click property, you got the folder property dialog
3. Click Safety tab, you may found there's only System user in the
list. Click Add and add type your username, then click OK. 
4. Select your name in the list, enable all the permissions in the box
below.

Now this problem should be fixed. Hope this works.

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[issue5524] execfile() removed from Python3

2009-03-20 Thread STINNER Victor


STINNER Victor victor.stin...@haypocalc.com added the comment:

martin There is a much simpler solution to the problem: 
martin use exec(open(fn,rb).read())

Ok... but there is the newline issue: (self quote) exec() doesn't support 
newline different than \n, see issue #4628.

And open_python() can be used for other usages than execfile() ;-)

Note: tokenize.open_python() is maybe not the best module and/or function 
name.

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[issue5526] Local variables unavailable for operation of list comprehension when using eval()

2009-03-20 Thread Benjamin Peterson


Benjamin Peterson benja...@python.org added the comment:

This is a fundamental limitation of how comprehensions are implemented
in Python 3 and is unlikely to change anytime soon.

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resolution:  - wont fix
status: open - closed

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[issue1322] platform.dist() has unpredictable result under Linux

2009-03-20 Thread Marc-Andre Lemburg

Marc-Andre Lemburg m...@egenix.com added the comment:

On 2009-03-18 18:13, Matthias Klose wrote:
Matthias Klose d...@debian.org added the comment:

MAL, please can we add zooko's patch in some form? The current
implementation assumes an implementation, which doesn't exist on all
platforms, and just dividing linux distributions in unsupported and
supported seems to be odd.

I've already mentioned what needs to be done to make Zooko's patch
suitable for platform.py (see further up on this ticket discussion).

The patch still doesn't meet those requirement, so cannot be applied.

Furthermore, I would prefer that piping to lsb_release only be used
as fallback solution. This should not be the default mechanism.

Regarding the problems on Ubuntu: That's mainly due to the way Ubuntu
decided to use the LSB standard. Most other Linux platforms work
just fine with the existing platform.py parser.

In order to support Ubuntu as well, we'll have to parse the
DISTRIB_* variables in /etc/lsb-release.

You cite some URL's in platform.py:

- http://linuxmafia.com/faq/Admin/release-files.html

Linux System Base-compliant systems should have a file called
/etc/lsb_release, which may be in addition to a distribution-
specific file.

The standard doesn't say anything like this.

- http://linux.die.net/man/1/lsb_release
This is one implementation, not more. The current platform.py
implementation seems to require this particular implementation.

The only relevant URL is missing in this file:
http://refspecs.freestandards.org/LSB_3.2.0/LSB-Core-generic/LSB-Core-generic/lsbrelease.html

Thanks, I'll add that. Note that the link doesn't mention anything
about the file format of the /etc/lsb_release file or how it should
be parsed. That's why I added the other URLs.

BTW: Here's what man lsb_release says on OpenSUSE:

If the installation is LSB compliant, the /etc/lsb-release file
should contain the
LSB_VERSION field. The value of the field should be a colon separated
list of supported
module versions indicating the LSB specification modules to which the
installation is com‐
pliant. If the installation is not compliant, the above field should not
be present.

Optional fields are DISTRIB_ID, DISTRIB_RELEASE, DISTRIB_CODENAME,
DISTRIB_DESCRIPTION and
can be used to override information which is parsed from the
/etc/distrib-release file.

If the /etc/lsb-release.d directory exists, it is searched for
filenames which are taken
as additional module-version strings to add to LSB_VERSION.

The /etc/distrib-release file contains a description line which is
parsed to get informa‐
tion (especially on currently non-LSB compliant systems).

It is interesting to note that Ubuntu's /etc/lsb_release file does not
contain the LSB_VERSION field. That would suggest, that Ubuntu is not
LSB compliant.

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[issue5033] setup.py crashes if sqlite version contains 'beta'

2009-03-20 Thread Gerhard Häring


Changes by Gerhard Häring g...@ghaering.de:


--
assignee:  - ghaering
nosy: +ghaering
priority:  - low

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[issue1322] platform.dist() has unpredictable result under Linux

2009-03-20 Thread Zooko O'Whielacronx

Zooko O'Whielacronx zo...@zooko.com added the comment:

I just read back through this ticket, but I didn't understand exactly
what MAL wanted to have different from what this Python function
currently does:

http://allmydata.org/trac/tahoe/browser/src/allmydata/__init__.py?rev=20081125155118-92b7f-f74fc964ebd9d3c59afde68b6688c56ce20cca39#L31

MAL, could you please restate the changes you want?

By the way I think there is some confusion about what is standardized by
LSB. As far as I know this one page is the complete spec:
http://refspecs.freestandards.org/LSB_3.2.0/LSB-Core-generic/LSB-Core-generic/lsbrelease.html
and it doesn't specify the existence of any file that we can parse. So
the quote you mention: Linux System Base-compliant systems should have
a file called /etc/lsb_release, which may be in addition to a
distribution-specific file. is just wrong. More's the pity -- most
implementations use a file named /etc/lsb-release, and we can parse
that, and if we do it is much faster than executing the lsb_release
executable in a subprocess. The slowness of invoking subprocess is why
I was forced to back off from my original patch of merely using only
what the LSB offers.

A second problem with relying on LSB is, as I've mentioned, that some
Linux distributions don't come (by default) with the de-facto-standard
lsb_release executable although they do come with an /etc/lsb-release
file.

That's why my current strategy is:

1. Parse the de-facto-nearly-standard /etc/lsb-release file.

2. Ad-hoc techniques encoded into the Python Standard Library's
platform.dist().

3. Execute the de-jure-standard lsb_release in a subprocess.

4. Arch Linux

[issue5518] cPickle produces inconsistent output

2009-03-20 Thread rb


rb rb-os...@justgohome.co.uk added the comment:

Martin,

Sorry, I don't follow. I realise that the refcounts will be different;
but pickling an object should surely be independent of the refcount as
there is no need to include the refcount in the output?

What other way (using pickle or not) can I convert a generic immutable
Python object to a string to use as a key in external storage?

Currently the documentation points out that the output may be different
between pickle and cPickle which implies that the output will be
consistent for a single module.

If pickle is not required to produce consistent output for the same
input (and refcount isn't really part of the input in this case; it is 
a side issue) than can this be documented?

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[issue1726687] Bug found in datetime for Epoch time = -1

2009-03-20 Thread Amaury Forgeot d'Arc


Amaury Forgeot d'Arc amaur...@gmail.com added the comment:

Is the break intended in the test function? it seems that this will
skip the whole test. Isn't continue better?

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[issue1726687] Bug found in datetime for Epoch time = -1

2009-03-20 Thread STINNER Victor


STINNER Victor victor.stin...@haypocalc.com added the comment:

@Amaury: You wrote:

  But negative time_t are still not allowed by the Microsoft CRT, 
the tests fail.

So I choosed to skip mktime(-1) test if mktime(-2) fails.

I don't have Windows to test my patch nor current behaviour.

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[issue4258] Use 30-bit digits instead of 15-bit digits for Python integers.

2009-03-20 Thread Mark Dickinson


Mark Dickinson dicki...@gmail.com added the comment:

Backported to trunk in r70479.

Mario, thanks for the long multiplication tweaks you submitted:  could you 
possibly regenerate your Feb 19th patch against the trunk (or py3k, 
whichever you prefer) and attach it to issue 3944?

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status: open - closed

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[issue5518] cPickle produces inconsistent output

2009-03-20 Thread Benjamin Peterson


Benjamin Peterson benja...@python.org added the comment:

pickle is designed to provide persistent storage, not create keys for
objects. Changes to the format are fine as long as they are compatible.

--
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status: pending - closed

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[issue5527] multiprocessing won't work with Tkinter (under Linux)

2009-03-20 Thread Aki


New submission from Aki akin...@users.sourceforge.net:

Hello,

The attached test case, which uses multiprocessing module to run Tkinter
GUI process, runs flawlessly under Solaris but hung under Linux (CentOS5).

The test case is a trimmed version of much larger program but it still
exhibits the same problem.
I got a suggestion to use a function rather than a method of a class.
But it didn't make any difference.

I may have overlooked something but as far as I review my code, I
couldn't find anything that explains why the test case won't work (In
fact, it works under Solaris).

--
components: Library (Lib)
files: tk_test.py
messages: 83867
nosy: akineko
severity: normal
status: open
title: multiprocessing won't work with Tkinter (under Linux)
type: crash
versions: Python 2.6
Added file: http://bugs.python.org/file13383/tk_test.py

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[issue5463] Remove deprecated features from struct module

2009-03-20 Thread Andreas Schawo


Andreas Schawo andreas.sch...@gmail.com added the comment:

Ok, heres the patch again.

Passed regression tests.

Should the version number increase to 0.3? Maybe to reflect there are no
more deprecated features. It should then take place after FLOAT_COERCE
cleanup.

I'm currently trying to figure out whats about _PY_STRUCT_RANGE_CHECKING
and why it is hardcoded constant in _struct.c.

--
Added file: http://bugs.python.org/file13384/struct_overflow_patch.diff

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