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  1. import re
  2.  
  3. print re.sub("(?<=[^a-zA-Z])pi(?=[^a-zA-Z])", "(math.pi)", "2pi3 + supirse")
Success #stdin #stdout 0.08s 10864KB
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Standard input is empty
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2(math.pi)3 + supirse
https://ideone.com/rSd8H
language:
Python (cpython 2.7.16)
created:
11 years ago
visibility:
public

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