Python IDLE tab completion

#suprsvn: We can let the Python IDLE support 'tab completion'.

1. Put the codes into a file named '.pythonstartup'.

import pdb
# python startup file
import readline
import rlcompleter
import atexit
import os
# tab completion
readline.parse_and_bind('tab: complete')
# history file
histfile = os.path.join(os.environ['HOME'], '.pythonhistory')
try:
    readline.read_history_file(histfile)
except IOError:
    pass
atexit.register(readline.write_history_file, histfile)
del os, histfile, readline, rlcompleter

2. Put the file into your HOME directory.

Linux : ~/.pythonstartup
Windows : C:\Users\USERNAME\.pythonstartup

3. Set the Environment Variables.

In Windows : Just do it like this.

In Linux : Put the line into the file named '.profile'.

export PYTHONSTARTUP=~/.pythonstartup     

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