Python about file I/O

Michael Janssen Janssen at
Sun Sep 22 07:02:41 EDT 2002

Ken wrote:

> Hi, I have 2 questions on IO, not necessary related to one another:
> 1.) How do you list the filenames within a given directory so user can
> choose which file to open?
> 2.) How do you ensure the program doesn't crash if I specify a
> filename to open but the file doesn't exist? (I.E. how to check if
> file exist before opening the file?)
> Thanks

existence-check is:


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