Enable interactive python auto completion on any platform

python_startup.py

# -*- coding: utf-8 -*-
import sys
if sys.platform.startswith('linux'):
    try:
        import readline
    except ImportError:
        print "Module readline not available."
    else:
        import rlcompleter
        readline.parse_and_bind("tab: complete")
elif sys.platform.startswith('darwin'):
    import readline
    import rlcompleter
    readline.parse_and_bind("bind ^I rl_complete")
elif sys.platform.startswith('win32'):
    try:
        import readline
    except ImportError:
        print "Install pyreadline package"
    import rlcompleter
    readline.parse_and_bind("tab: complete")