Trying buildbot on wine; foiled by distutils expecting mscoree to be resident?

[Dan Kegel]

I decided to try running buildbot on Wine today.
The installation procedure is roughly
  wine msiexec /i python-2.6.2.msi /qb
  wine Twisted_NoDocs-8.2.0.win32-py2.6.exe

The last bit complains
Traceback (most recent call last):
  File "C:\Python26\scripts\twisted_postinstall.py", line 11, in <module>
    from twisted.scripts import tkunzip
  File "C:\Python26\lib\site-packages\twisted\scripts\tkunzip.py",
line 26, in <module>
    from twisted.internet import reactor, defer
  File "C:\Python26\lib\site-packages\twisted\internet\reactor.py",
line 37, in <module>
    from twisted.internet import selectreactor
  File "C:\Python26\lib\site-packages\twisted\internet\selectreactor.py",
line 21, in <module>
    from twisted.internet import posixbase
  File "C:\Python26\lib\site-packages\twisted\internet\posixbase.py",
line 25, in <module>
    from twisted.internet import tcp, udp
  File "C:\Python26\lib\site-packages\twisted\internet\tcp.py", line
78, in <module>
    from twisted.internet import defer, base, address
  File "C:\Python26\lib\site-packages\twisted\internet\defer.py", line
17, in <module>
    from twisted.python import log, failure, lockfile
  File "C:\Python26\lib\site-packages\twisted\python\lockfile.py",
line 28, in <module>
    from win32api import OpenProcess
ImportError: No module named win32api
and hangs, possibly because of
http://twistedmatrix.com/trac/ticket/3707
so I tried doing
  wine pywin32-212.win32-py2.6.exe
first.  This fails immediately as described in
http://bugs.winehq.org/show_bug.cgi?id=13844
It seems to terminate because it tries to get
a handle to the loaded copy of mscoree.dll
and fails (because there isn't one).

The installer seems to have been created by python's distutils.

Mark Hammond seems to be well aware of low level
issues that affect the installer, see e.g.
http://bugs.python.org/issue5075
so perhaps he could explain why the installer expects
mscoree.dll to be resident...

Trying buildbot on wine; foiled by distutils expecting mscoree to be resident?

[Louis Lenders]

> so I tried doing
>   wine pywin32-212.win32-py2.6.exe
> first.  This fails immediately as described in
> http://bugs.winehq.org/show_bug.cgi?id=13844
> It seems to terminate because it tries to get
> a handle to the loaded copy of mscoree.dll
> and fails (because there isn't one).
>
> The installer seems to have been created by python's distutils.
>
> Mark Hammond seems to be well aware of low level
> issues that affect the installer, see e.g.
> http://bugs.python.org/issue5075
> so perhaps he could explain why the installer expects
> mscoree.dll to be resident...

This is explained here: http://bugs.winehq.org/show_bug.cgi?id=6880#c7 (I guess
it's the same issue)

Copy and paste:

--- snip ---
I've seen quite some applications that fail in the end like this one:
0009:Call kernel32.GetModuleHandleA(011bf1d4 "mscoree.dll") ret=00c5936f
0009:Ret  kernel32.GetModuleHandleA() retval=00000000 ret=00c5936f
Then ExitProcess.
--- snip ---

This has nothing to do with this bug.
The application uses dynamic msvc 7.1 runtime, which implicitly pulls
mscoree.dll in.

Normally mscrt __crtExitProcess() calls just ExitProcess() but on newer versions
 a call to __crtCorExitProcess() is made to ensure proper shutdown of managed
parts (even if you don't use managed = .NET code).

CorExitProcess() basically does this:

--- snip ---
hModule = GetModuleHandle("mscoree.dll");
if (hModule != NULL)
{
   pfn = (PFN_EXIT_PROCESS) GetProcAddress( hModule, "CorExitProcess");
   if (pfn != NULL) 
     pfn(status);
}
--- snip ---

If mscoree module or the export is not found it causes no harm.
It works as designed.

The reason for this additional (implicit) shutdown code is you have no control
whether a part of operation system or application dll (3rd party/injected) might
pull in managed stuff thats why this code exists.

Regards

Trying buildbot on wine; foiled by distutils expecting mscoree to be resident?

[Dan Kegel]

Thanks for the tip about the mscoree access being unimportant.
It turns out the pywin32 installer works fine with win2K set,
but that doesn't help Twisted_NoDocs-8.2.0.win32-py2.6.exe,
which still fails to find win32api.  However, if I install
ActiveState's python instead of the one from python.org,
twisted installs successfully.

Now on with the buildbot experiment :-)