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https://github.com/python/cpython
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Tip revision: 076ca6c3c8df3030307e548d9be792ce3c1c6eea authored by Martin Panter on 14 July 2016, 01:31:46 UTC
Issue #27369: Don’t test error message detail that changed in Expat 2.2.0
Tip revision: 076ca6c
fixps.py
#!/usr/bin/env python3

# Fix Python script(s) to reference the interpreter via /usr/bin/env python.
# Warning: this overwrites the file without making a backup.

import sys
import re


def main():
    for filename in sys.argv[1:]:
        try:
            f = open(filename, 'r')
        except IOError as msg:
            print(filename, ': can\'t open :', msg)
            continue
        line = f.readline()
        if not re.match('^#! */usr/local/bin/python', line):
            print(filename, ': not a /usr/local/bin/python script')
            f.close()
            continue
        rest = f.read()
        f.close()
        line = re.sub('/usr/local/bin/python',
                      '/usr/bin/env python', line)
        print(filename, ':', repr(line))
        f = open(filename, "w")
        f.write(line)
        f.write(rest)
        f.close()

if __name__ == '__main__':
    main()
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