Com server build using Python on 64-bit Windows 7 machine

Question

Original post is here: http://mail.python.org/pipermail/python-win32/2010-December/011011.html

I am using:

OS: 64 bit Windows 7 Professional

Python: python-2.7.1.amd64

Python win32 extensions: pywin32-214.win-amd64-py2.7

Py2exe: py2exe-0.6.9.win64-py2.7.amd64

I am trying to build icon overlay for Windows. It has worked fine on 32 bit Windows but not working on 64 bit Windows 7.

Here are the Python modules I have created for testing:

test_icon_overlay.py: ( http://mail.python.org/pipermail/python-win32/attachments/20101229/bb8c78a4/attachment-0002.obj ) com server created in Python for icon overlay which adds check mark overlay icon(C:\icons\test.ico) on "C:\icons" folder
setup_VI.py: ( http://mail.python.org/pipermail/python-win32/attachments/20101229/bb8c78a4/attachment-0003.obj ) setup file which creates test_icon_overlay.dll for distribution.
icons.zip: ( http://mail.python.org/pipermail/python-win32/attachments/20101229/bb8c78a4/attachment-0001.zip ) for testing you should extract icons.zip inside C:\

Icon overlay appears on C:\icons folder when I execute python test_icon_overlay.py on Windows command prompt and restarts explorer.exe. But its not working with the dll file created using setup_VI.py

I have created dll file using python setup_VI.py py2exe and then tried to register it using regsvr32 test_icon_overlay.dll. Registration fails with windows error message Error 0x80040201 while registering shell extension.

Then I turned on logger in Python27/Lib/site-packages/py2exe/boot_com_servers.py and here is the traceback which I am getting in comerror.txt on regsvr32 test_icon_overlay.dll

PATH is ['C:\\root\\avalon\\module\\sync\\python\\src\\dist\\library.zip']
Traceback (most recent call last):
  File "boot_com_servers.py", line 37, in <module>
pywintypes.error: (126, 'GetModuleFileName', 'The specified module could not
be found.')
Traceback (most recent call last):
  File "<string>", line 1, in <module>
NameError: name 'DllRegisterServer' is not defined

Looks like there might be a problem with win32api.GetModuleFileName(sys.frozendllhandle) or with the dll build on 64-bit Windows 7.

Also, I saw that installation of pywin32-214.win-amd64-py2.7 on 64-bit Windows 7 finish with the error message: Snapshot

close failed in file object destructor:
sys.excepthook is missing
lost sys.stderr

Is there anything which I am doing wrong? Any help on this is highly appreciated.

When you say it works on 32-bit Windows, is that the 32-bit Windows 7 or an older version like Windows XP? If you haven't tried a 32-bit version of the same OS where 64-bit doesn't work then the problem may not be the 64-bitness at all. For example, if it works in XP but not Win7 then it could be UAC related. — user108404
– user108404, Commented Jan 3, 2011 at 8:48
I have tested dll generated on 32-bit Windows XP on 32-bit Windows XP, Vista and Win7 and icon overlay works fine on each OS. But 64-bit dll generated on 64-bit Windows XP/Win7 did not worked at all on 64-bit XP/Win7 machine. Registration of dll failed on 64-bit machine. — VJasdf
– VJasdf, Commented Jan 3, 2011 at 12:33
Probably a stupid question, but when executing regsvr32 the cmd window is being run with admin privileges, right? — Mark
– Mark, Commented Jan 3, 2011 at 14:45
I have tried on Win7 using Administrator account and command prompt was invoked with Admin privileges. — VJasdf
– VJasdf, Commented Jan 4, 2011 at 4:53
There is a slightly simpler setup here with same problem: stackoverflow.com/questions/4619701/… — Heikki Toivonen
– Heikki Toivonen, Commented Jan 6, 2011 at 22:17

cgohlke · Accepted Answer · 2011-01-06 23:28:47Z

5

There's a bug in py2exe on 64 bit Python. The sys.frozendllhandle, initialized by py2exe, is invalid such that win32api.GetModuleFileName(sys.frozendllhandle) fails.

You might want to try the patched py2exe installers at http://www.lfd.uci.edu/~gohlke/pythonlibs/#py2exe

answered Jan 6, 2011 at 23:28

cgohlke

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2 Comments

Heikki Toivonen Over a year ago

Where can I see the actual patch to py2exe?

cgohlke Over a year ago

I submitted the patch to sourceforge.net/tracker/…

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