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#!/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
with f:
line = f.readline()
if not re.match('^#! */usr/local/bin/python', line):
print(filename, ': not a /usr/local/bin/python script')
continue
rest = f.read()
line = re.sub('/usr/local/bin/python',
'/usr/bin/env python', line)
print(filename, ':', repr(line))
with open(filename, "w") as f:
f.write(line)
f.write(rest)
if __name__ == '__main__':
main()
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