[Guido] > Someone suggested that COM should not use Tcl/Tk, and then the Tcl/Tk > DLLs can live in the Python tree. I'm not so sure -- I can at least > *imagine* that someone would use Tcl/Tk to give their COM object a bit > of a GUI. Moreover, this argument doesn't work for pyexpat -- COM > apps are definitely going to expect to be able to use pyexpat! Me. Would you have any sympathy for someone who wanted to make a GUI an integral part of a web server? Or would you tell them to get a brain and write a GUI that talks to the web server? Same issue. (Though not, I guess, for pyexpat). > It's annoying. > > I have noticed, however, that you can use os.putenv() (or assignment > to os.environ[...]) to change the PATH environment variable. The > FixTk.py script in Python 1.5.2 used this -- it looked in a few places > for signs of a Tcl/Tk installation, and then adjusted PATH to include > the proper directory before trying to import _tkinter. Maybe there's > a solution here? The Python DLL could be the only thing in the system > directory, and from the registry it could know where the Python > directory was. It could then prepend this directory to PATH. This is > not so evil as mucking with PATH at install time, I think, since it is > only done when Python16.dll is actually loaded. The drawback of relying on PATH is that then some other jerk (eg you, last year <wink>) will stick something of the same name in the system directory and break your installation. > Would this always work? (Windows 95, 98, NT, 2000?) Wouldn't it run > out of environment space? Wouldn't it break other COM apps? Is the > PATH truly separate per process? Are there any exceptions to this: - dynamically load a .pyd - .pyd implicitly loads the .dll ? If that's always the case, then you can temporarily cd to the right directory before the dynamic load, and the implicit load should work. As for the others: probably not; can't see how; yes. - Gordon
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