a332.py « unparsable_programs « progs - clp - A small Python compiler with optimizer written in Java

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import re
def camel_to_snake(text):
  str1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', text)
  return re.sub('([a-z0-9])([A-Z])', r'\1_\2', str1).lower()