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#!/usr/bin/env python
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import re
import sys
def main():
for path in sys.argv[1:] or sys.stdin.read().splitlines():
with open(path, 'r') as path_fd:
for line, text in enumerate(path_fd.readlines()):
match = re.search(r'\.(iterkeys)', text)
if match:
print('%s:%d:%d: use `dict.keys` or `for key in dict:` instead of `dict.iterkeys`' % (
path, line + 1, match.start(1) + 1))
if __name__ == '__main__':
main()
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