Re: [python-win32] Problem with msvcr90.dll
On Tue, Feb 01, 2011, Tefnet Developers wrote: $ make pytest.exe i586-mingw32msvc-gcc -I./include -I./include/python -Wall -pedantic -std=c99-c -o pytest.o pytest.c i586-mingw32msvc-gcc -L./lib -o pytest.exe pytest.o -lmingw32 -lpython26 rm pytest.o The output looks like this: C:\pytest Traceback (most recent call last): File string, line 3, in module File C:\Python26\lib\site-packages\win32\lib\pywintypes.py, line 124, in module __import_pywin32_system_module__(pywintypes, globals()) File C:\Python26\lib\site-packages\win32\lib\pywintypes.py, line 64, in __import_pywin32_system_module__ import _win32sysloader ImportError: DLL load failed: The specified module could not be found What happens if you use VC++ 2008 Express? (Yes, that should not change anything, but I've seen people report all kinds of weird problems with mingw.) -- Aahz (a...@pythoncraft.com) * http://www.pythoncraft.com/ Programming language design is not a rational science. Most reasoning about it is at best rationalization of gut feelings, and at worst plain wrong. --GvR, python-ideas, 2009-03-01 ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Problem with msvcr90.dll
On 2/02/2011 3:11 AM, Tefnet Developers wrote:
Dnia 2011-02-01, wto o godzinie 10:44 +1100, Mark Hammond pisze:
This stuff is painful and poorly documented. Is it possible the code
which triggers the failing import is on a different thread than the one
which loaded Python? If so, I suspect the magic done by Python in
dl_nt.c may not be kicking in, which is supposed to ensure all python
modules are loaded using the activation context defined by pythonxx.dll.
The smallest piece of program that shows the problem:
$ cat pytest.c
#includePython.h
int main(void) {
Py_Initialize();
PyRun_SimpleString(
import traceback \n
try:\n
import pywintypes\n
except:\n
traceback.print_exc()\n
);
}
$ make pytest.exe
i586-mingw32msvc-gcc -I./include -I./include/python -Wall -pedantic
-std=c99-c -o pytest.o pytest.c
i586-mingw32msvc-gcc -L./lib -o pytest.exe pytest.o -lmingw32 -lpython26
rm pytest.o
What happens if you give that executable a manifest referencing the CRT?
Note that things changed since pywin32 build 214 - now (almost) none
of the pywin32 pyd files have a manifest at all, meaning they can be
loaded correctly by Python itself in all cases - but the thing that
loads Python *must* have a manifest - ie, python.exe needs (and has)
one, as does the DLL which loads Python COM objects. It gets even more
complicated if Python is loaded via LoadLibrary - you can check the
source to pythoncomloader in the pywin32 repo for more details (the
short version is that the same hacks that Python itself does WRT
activation contexts needs to be done...)
Aahz's suggestion is a good one - you should use the VC compiler as your
baseline, then try and get mingw going one you have initial success
with VC.
HTH,
Mark
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Re: [python-win32] Problem with msvcr90.dll
Mark Hammond wrote: What happens if you give that executable a manifest referencing the CRT? Note that things changed since pywin32 build 214 - now (almost) none of the pywin32 pyd files have a manifest at all, meaning they can be loaded correctly by Python itself in all cases - but the thing that loads Python *must* have a manifest - ie, python.exe needs (and has) one, as does the DLL which loads Python COM objects. It gets even more complicated if Python is loaded via LoadLibrary - you can check the source to pythoncomloader in the pywin32 repo for more details (the short version is that the same hacks that Python itself does WRT activation contexts needs to be done...) Let us HOPE that Python quickly migrates to Visual Studio 2010, in which the team has wisely decided to abandon the side-by-side stuff altogether and go back to a simpler way of life, where having the files in \Windows\System32 is enough for everyone. -- Tim Roberts, t...@probo.com Providenza Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
