[Python-Dev] Easy way to detect filesystem case-sensitivity?

[Brett Cannon]

On Thu, May 7, 2009 at 18:56, John Arbash Meinel <
john.arbash.meinel at gmail.com> wrote:

> Andrew Bennetts wrote:
> > Antoine Pitrou wrote:
> >> Robert Kern <robert.kern <at> gmail.com> writes:
> >>> Since one may have more than one filesystem side-by-side, this can't be
> just
> >> be
> >>> a system-wide boolean somewhere. One would have to query the target
> directory
> >>> for this information. I am not aware of the existence of code that does
> such
> >> a
> >>> query, though.
> >> Or you can just be practical and test for it. Create a file "foobar" and
> see if
> >> you can open "FOOBAR" in read mode...
> >
> > Agreed.  That is how Bazaar's test suite detects this, and it works well.
> >
> > -Andrew.
>
>
> Actually, I believe we do:
>
> open('format', 'wb').close()
> try:
>  os.lstat('FoRmAt')
> except IOError, e:
>  if e.errno == errno.ENOENT:
>   ...
>
> I don't know that it really matters, just wanted to indicate we use
> 'lstat' rather than 'open()' to check. I could be wrong about the test
> suite, but I know that is what we do for 'live' files. (We always create
> a format file, so we know it is there to 'stat' it via a different name.)


Thanks for the help to everyone. I ended up simply taking __file__, making
it all uppercase (or lowercase if it is already uppercase) and then doing
os.path.exists() on the modified name. Seems to work.

-Brett
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