1 #!/usr/bin/env python

     2 

     3 # Fix Python script(s) to reference the interpreter via /usr/bin/env python.

     4 # Warning: this overwrites the file without making a backup.

     5 

     6 import sys

     7 import re

     8 

     9 

    10 def main():

    11     for filename in sys.argv[1:]:

    12         try:

    13             f = open(filename, 'r')

    14         except IOError, msg:

    15             print filename, ': can\'t open :', msg

    16             continue

    17         line = f.readline()

    18         if not re.match('^#! */usr/local/bin/python', line):

    19             print filename, ': not a /usr/local/bin/python script'

    20             f.close()

    21             continue

    22         rest = f.read()

    23         f.close()

    24         line = re.sub('/usr/local/bin/python',

    25                       '/usr/bin/env python', line)

    26         print filename, ':', repr(line)

    27         f = open(filename, "w")

    28         f.write(line)

    29         f.write(rest)

    30         f.close()

    31 

    32 if __name__ == '__main__':

    33     main()