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  1. import re
  2. s = "a,s I walk, I hum."
  3.  
  4. # Capturing group / backreference
  5. print(re.sub(r"([aeiou]),", r"\1", s))
  6.  
  7. # Positive lookbehind
  8. print(re.sub(r"(?<=[aeiou]),", "", s))
  9.  
Success #stdin #stdout 0.01s 23336KB
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as I walk, I hum.
as I walk, I hum.
https://ideone.com/Pmt4XM
language:
Python (cpython 2.7.16)
created:
7 years ago
visibility:
secret

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