Python/Windows issue: "import uuid" results in an error popup #27666

New Issue

Gaia Clary · 2011-06-15T13:30:55+02:00

Gaia Clary commented

2011-06-15 13:30:55 +02:00

%%%Reproduce:

Open Blender on a computer with any Windows Operating system
Open the python console
Enter: import uuid

I get a popup window stating:

R6034 An application has made an attempt to load the C runtime library incorrectly...

This popup occurs only on the very first attempt to load it.
Subsequent "import uuid" statements do not raise the error again.%%%

%%%Reproduce: - Open Blender on a computer with any Windows Operating system - Open the python console - Enter: import uuid I get a popup window stating: R6034 An application has made an attempt to load the C runtime library incorrectly... This popup occurs only on the very first attempt to load it. Subsequent "import uuid" statements do not raise the error again.%%%

Gaia Clary commented

2011-06-15 13:30:55 +02:00

Changed status to: 'Open'

blender-admin commented

2011-06-15 13:30:55 +02:00

blender/blender#38966 was marked as duplicate of this issue

Gaia Clary commented

2011-06-15 14:03:58 +02:00

%%%Additional info: This error only occurs on Windows systems.
Linux and OSX do not suffer from this problem!
%%%

%%%Additional info: This error only occurs on Windows systems. Linux and OSX do not suffer from this problem! %%%

Campbell Barton commented

2011-06-16 06:33:57 +02:00

%%%This is very strange, it seems to be an MSVC dependancy issue.

Info I dug up on this issue:
http://bugs.python.org/issue4022
http://weblogs.asp.net/george_v_reilly/archive/2007/02/10/shell-extension-throwing-r6034-errors.aspx

Oddly enough it works in msvc2008 and msvc2010, on my windows XP system but 2.57b release and MinGW builds give the error.%%%

%%%This is very strange, it seems to be an MSVC dependancy issue. Info I dug up on this issue: http://bugs.python.org/issue4022 http://weblogs.asp.net/george_v_reilly/archive/2007/02/10/shell-extension-throwing-r6034-errors.aspx Oddly enough it works in msvc2008 and msvc2010, on my windows XP system but 2.57b release and MinGW builds give the error.%%%

Nathan Letwory commented

2011-06-17 02:16:17 +02:00

%%%I'm preparing a fix.%%%

Nathan Letwory commented

2011-06-17 02:30:22 +02:00

%%%A fix in r37573.%%%

Campbell Barton commented

2011-06-17 08:18:04 +02:00

%%%closing. (if for some reason the fix isn't working reply and I'll re-open)%%%

Campbell Barton commented

2011-06-17 08:18:04 +02:00

Changed status from 'Open' to: 'Resolved'

Campbell Barton closed this issue

2011-06-17 08:18:04 +02:00

Gaia Clary commented

2011-06-17 22:01:12 +02:00

%%%I just updated to revision 37604. Unfortunately i still get the exact same problem when i open the python console and then:

import uuid

I am on windows 7 and i used scons for building:

python scons/scons.py

%%%

%%%I just updated to revision 37604. Unfortunately i still get the exact same problem when i open the python console and then: import uuid I am on windows 7 and i used scons for building: python scons/scons.py %%%

Nathan Letwory commented

2011-06-19 14:15:11 +02:00

%%%Make sure you don't have any runtime dlls in BF_INSTALLDIR, these will interfere with the fix.%%%

Gaia Clary commented

2011-06-19 17:53:30 +02:00

%%%I am building Blender with Visual c++ 2008 Express edition
and 32 bit python and using the following command:

  python scons/scons.py

Here is the list of libraries i have in the installation directory after
the build completes:

BlendThumb.dll
BlendThumb64.dll
OpenAL32.dll
SDL.dll
avcodec-52.dll
avdevice-52.dll
avformat-52.dll
avutil-50.dll
gnu_gettext.dll
iconv.dll
libpng.dll
libsndfile-1.dll
pthreadVC2.dll
python32.dll
swscale-0.dll
wrap_oal.dll
zlib.dll

The fix does still not work for me after completely rebuilding Blender:

i deleted the entire installation directory
i called: "python scons/scons.py clean"
i called: "python scons/scons.py"

After i open Blender, i go to the python console and:

import uuid

still gives me the error as initially reported.

I also tried to build for 64 bit. But i was not able to create a 64-bit Blender
based on my current setup. I also hesiotate to follow the "hack" described
on the Blender wiki, which is not even "officially supported by blebnder developers"

Maybe someone with a working 32-bit version can verify that the issue is not solved
for 32-bit builds.
%%%

%%%I am building Blender with Visual c++ 2008 Express edition and 32 bit python and using the following command: ``` python scons/scons.py ``` Here is the list of libraries i have in the installation directory after the build completes: BlendThumb.dll BlendThumb64.dll OpenAL32.dll SDL.dll avcodec-52.dll avdevice-52.dll avformat-52.dll avutil-50.dll gnu_gettext.dll iconv.dll libpng.dll libsndfile-1.dll pthreadVC2.dll python32.dll swscale-0.dll wrap_oal.dll zlib.dll The fix does still not work for me after completely rebuilding Blender: - i deleted the entire installation directory - i called: "python scons/scons.py clean" - i called: "python scons/scons.py" After i open Blender, i go to the python console and: import uuid still gives me the error as initially reported. I also tried to build for 64 bit. But i was not able to create a 64-bit Blender based on my current setup. I also hesiotate to follow the "hack" described on the Blender wiki, which is not even "officially supported by blebnder developers" Maybe someone with a working 32-bit version can verify that the issue is not solved for 32-bit builds. %%%

Domino Marama commented

2011-06-21 14:15:12 +02:00

%%%The uuid.py module in Python uses ctypes to get platform specific uuid creation routines (for performance benefits). So I think this is probably related to previous ctypes problems on Windows.

A workaround is to remove all the ctypes stuff from Python's uuid.py to avoid triggering the problem.%%%

%%%The uuid.py module in Python uses ctypes to get platform specific uuid creation routines (for performance benefits). So I think this is probably related to previous ctypes problems on Windows. A workaround is to remove all the ctypes stuff from Python's uuid.py to avoid triggering the problem.%%%

Martijn Berger commented

2014-02-14 22:02:59 +01:00

Added subscriber: @MartijnBerger