core-extra/python-prefix.py

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#!/usr/bin/env python
import sys
import os.path
import site
def main():
if len(sys.argv) != 2:
msg = 'usage: %s <prefix>\n' % os.path.basename(sys.argv[0])
sys.stderr.write(msg)
return 1
python_prefix = sys.argv[1]
prefix = None
for p in sys.path:
if python_prefix in p:
prefix = python_prefix
break
if not prefix:
prefix = site.PREFIXES[-1]
print prefix
return 0
if __name__ == '__main__':
sys.exit(main())