A permissive filename sanitizer.
pip install sanitize-filename==1.2.0
A simple, dependency-free, blacklist-based filename sanitizer, for when you want to keep the original filename.
Note that a blacklist based sanitizer will never be as safe as a whitelist based one. In most cases, your best option is to create a safe filename yourself. Your second safest option is to use a whitelist approach (allowing only certain characters). This sanitizer is useful when you want to keep the original filename, including non ascii characters, whenever possible.
pip install sanitize_filename
from sanitize_filename import sanitize
filename = input("Enter a file name:")
filename = sanitize(filename)
Examples:
> sanitize("A/B/C.txt")
'ABC.txt'
> sanitize("this𓀦filenameḜisあactually...valid.txt")
'this𓀦filenameḜisあactually...valid.txt'
> sanitize("def.")
'def'
> sanitize("NUL")
'__NUL'
> sanitize("..")
'__'
1.2.0
1.1.0
1.0.1
1.0.0-dev3
1.0.0-dev1