try:
	import readline
except ImportError:
	print "Module readline not available."
else:
	import rlcompleter
	readline.parse_and_bind("tab: complete")

	import os
	histfile = os.path.join(os.environ["HOME"], ".python_history")
	try:
		readline.read_history_file(histfile)
	except IOError:
		pass
	import atexit
	atexit.register(readline.write_history_file, histfile)
	del os, histfile