Files in unix and windows

[Jeff Epler]

Which extra (back)slashes do you mean?  Do you mean that os.path.abspath
strips the trailing separator characters from its argument?

>>> os.path.abspath("../../../../etc/")
'/etc'
>>> os.path.normpath("./")
'.'

This behavior doesn't seem to be specifically documented.

If preserving the trailing '/' when present is important, you can easily
get this behavior using os.path.abspath:
    def myabspath(p):
        hadsep = p and p[-1] in (os.sep, os.altsep)
        p = os.path.abspath(p)
        if hadsep: p = p + os.sep
        return p

>>> myabspath('../../../../../etc/')
'/etc/'
>>> myabspath('../../../../../etc')
'/etc'

Jeff
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