#!/usr/bin/env python

"""
illustrates Python's dynamic import behavior
"""

import sys


def main(args):
	args = [unicode(arg, "UTF-8") for arg in args]

	PACKAGE = "package"
	MODULE = "module"
	ATTR = "foo"

	if args[1] == "A":
		m = __import__(PACKAGE)
	elif args[1] == "B":
		m = __import__(PACKAGE, fromlist=[MODULE])
	elif args[1] == "C":
		m = __import__("%s.%s" % (PACKAGE, MODULE))
	elif args[1] == "D":
		m = __import__("%s.%s" % (PACKAGE, MODULE), fromlist=[MODULE])
	else:
		raise ValueError

	print "%s -- %s --" % (m.__name__,
		m.__name__.endswith(MODULE) or MODULE in dir(m)),

	try:
		print getattr(m, ATTR)
	except AttributeError, exc:
		print "AttributeError: %s" % exc

	return True


if __name__ == "__main__":
	status = not main(sys.argv)
	sys.exit(status)