>
> Hi I'm writing a python script that creates directories from user
> input.
> Sometimes the user inputs characters that aren't valid
> characters for a
> file or directory name.
> Here are the characters that I consider to be valid characters...
>
> valid =
> ':./,^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ '
>
> if I have a string called fname I want to go through each character in
> the filename and if it is not a valid character, then I want
> to replace
> it with a space.
>
> This is what I have:
>
> def fixfilename(fname):
> valid =
> ':.\,^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ '
> for i in range(len(fname)):
> if valid.find(fname[i]) < 0:
> fname[i] = ' '
> return fname
>
> Anyone think of a simpler solution?
>
I got;
>>> import re
>>> badfilename='£"%^"£^"£$^ihgeroighroeig3645^£$^"knovin98u4#346#1461461'
>>> valid=':./,^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ '
>>> goodfilename=re.sub('[^'+valid+']',' ',badfilename)
>>> goodfilename
' ^ ^ ^ihgeroighroeig3645^ ^ knovin98u4 346 1461461'
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