Please help me finding a way to implement os.path.issubpath(a, b)

[Fredrik Lundh]

Diez B. Roggisch wrote:

> Any reason why
> 
> os.path.normpath(a).startswith(os.normpath(b)) doesn't do the trick?

Except for the trivial type, you mean?  That depends on whether "c:\foo" 
should be seen as a subpath to "c:\foobar" or not.  I'd probably go for 
(also untested):

def issubpath(a, b):
     def fixpath(p):
         return os.path.normpath(p) + os.sep
     return fixpath(a).startswith(fixpath(b))

</F>