Python function to make arbitrary strings valid filenames

问题

Is there a built-in function which strips all characters which cannot be in Windows filenames from a string or replaces them somehow?

E.g. function("Some:unicode\symbols") --> "Some-unicode-symbols"

回答1:

import re

arbitrary_string = "File!name?.txt"
cleaned_up_filename = re.sub(r'[/\\:*?"<>|]', '', arbitrary_string)
filepath = os.path.join("/tmp", cleaned_up_filename)

with open(filepath, 'wb') as f:
    # ...

Taken from User gx
Obviously adapt to your situation.

来源：https://stackoverflow.com/questions/5251330/python-function-to-make-arbitrary-strings-valid-filenames