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  1. import re
  2. print (re.subn("(a)(n)", lambda m: "{}{}".format(m.group(2), m.group(1)), "banana"))
Success #stdin #stdout 0.01s 23352KB
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Standard input is empty
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('bnanaa', 2)
https://ideone.com/eFp8Jn
language:
Python (cpython 2.7.16)
created:
6 years ago
visibility:
public

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