Where is wxPython?

[jay.krell at cornell.edu]

Windows generally looks in the .exe's directory first anyway, other than
LoadLibraryEx(with altered search path), which favors the directory the .dll
is in. COM uses that.

An empty foo.exe.local does make things more isolated. Loads by full path
resolve to the .exe's directory when foo.exe.local exists. I think.

Already loaded .dlls are also often favored.
eg:
c:\one\foo.exe
c:\one\lib.dll
c:\two\bar.dll
c:\two\lib.dll

foo.exe and bar.dll both depend on lib.dll. bar.dll is loaded "with altered
search path". Bar.dll picks of c:\one\lib.dll instead of the possibly
intended c:\two\lib.dll.

 - Jay

-----Original Message-----
From: Olivier Dagenais <olivierS.dagenaisP at canadaA.comM>
Newsgroups: comp.lang.python
To: python-list at python.org <python-list at python.org>
Date: Wednesday, October 25, 2000 5:16 PM
Subject: Re: Where is wxPython?


>> > Basically, Python itself loads DLLs (PYDs) from explicit directories
>> > in sys.path. If these DLLs load other DLLs, I believe that the search
>> > path includes the directory in which the loading DLL is located,
>> > rather than the directory in which the original EXE is located. The
>> > Windows documentation seems to imply otherwise - all I can say is that
>> > it seems to work.
>> I'm sure I tried that before and it didn't work...  But it *is* working
>> for me now with both 1.5.2 and 2.0.  Perhaps it is a win2k thing, which
>> version of windows are you running?
>
>Newer versions of Windows support "component isolation" or whatever it is
>called.  To avoid "DLL Hell", applications can install all their components
>in the application directory and Windows will try there first.  (you might
>need a .local file, too)  I think this only works for COM libraries under
>Win98SE on Tuesdays when the month starts in "M" and ends in "arch".  (ie:
>I don't think you can count on it for everybody)
>
>
>--
>----------------------------------------------------------------------
>Olivier A. Dagenais - Software Architect and Developer
>"Someone called 'Type your name here' is impersonating me on the
>internet and is posting exactly the same things I am posting!"