# Example custom fixer, derived from fix_raw_input by Andre Roberge from lib2to3 import fixer_base from lib2to3.fixer_util import Name class FixEcho(fixer_base.BaseFix): BM_compatible = True PATTERN = """ power< name='echo' trailer< '(' [any] ')' > any* > """ def transform(self, node, results): name = results['name'] name.replace(Name('print', prefix=name.prefix))