#!/usr/bin/env python

# 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, 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()