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#!/usr/bin/env python
#
# find and import a version of 'py'
#
import sys
import os
from os.path import dirname as opd, exists, join, basename, abspath
def searchpy(current):
while 1:
last = current
initpy = join(current, '__init__.py')
if not exists(initpy):
pydir = join(current, 'py')
# recognize py-package and ensure it is importable
if exists(pydir) and exists(join(pydir, '__init__.py')):
#for p in sys.path:
# if p == current:
# return True
if current != sys.path[0]: # if we are already first, then ok
print >>sys.stderr, "inserting into sys.path:", current
sys.path.insert(0, current)
return True
current = opd(current)
if last == current:
return False
if not searchpy(abspath(os.curdir)):
if not searchpy(opd(abspath(sys.argv[0]))):
if not searchpy(opd(__file__)):
pass # let's hope it is just on sys.path
import py
if __name__ == '__main__':
print "py lib is at", py.__file__
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