Stefan> I use it as a library, because it encodes knowledge about
Stefan> locating executables on different platforms, especially Windows.
Stefan> Unixoids have which and the search is relatively
Stefan> straightforward. Windows searches paths in PATH and in the
Stefan> registry, and uses PATHEXT, so, for me, the main benefit of
Stefan> which.py is that it provides a which replacement on Windows that
Stefan> takes these quirks into account.
I'll second that. In SpamBayes we not so long ago added the ability to run
OCR software over images to try and identify image-based spam. Needless to
say, we had to write fairly different bits of code on Unix v. Windows to
locate the gocr or ocrad executables. Having something like a
platform-independent which available in Python would have made this aspect
of the code easier to write.
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