Tools/scripts/fixps.py

   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 as 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()