Testing for a file in python?

[Jeff]

olczyk at interaccess.com (Thaddeus L. Olczyk) writes:
> How would you go about testing if a certain file exists in python?
> In most scripting languages you have the -f test:
> 
> if -f filename do
>    whatever_you_were_going_to_do
>    fi
> else do
>    print "Error" file not found
>    fi
> 
> stat doesn't work, it aborts if the file does not exist.

how about 'os.path.isfile()'? it returns a 0 if the file does not exist, and
a 1 if it does. my guess is this will also work under win32, but I have not
personally tested that platform.

import os
if os.path.isfile("filename"):
  # whatever_you_were_going_to_do
  pass
else:
  print "Error" # file not found


more information regarding the 'os.path' module is here:
http://www.python.org/doc/current/lib/module-os.path.html

regards,
J
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