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  1. import re
  2. s = "A man, a plan, a canal: Panama"
  3. s = re.sub(r'[^a-z0-9]', '', s.lower())
  4. print(s)
  5.  
Success #stdin #stdout 0.03s 9648KB
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amanaplanacanalpanama
https://ideone.com/dE5uSG
language:
Python 3 (python  3.9.5)
created:
4 days ago
visibility:
public

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