Python interactive command-line interface to Python with coloring of '5'

python-cli.py

import blessings, re, readline, rlcompleter

readline.parse_and_bind("tab: complete")    # For tab completion
_term = blessings.Terminal()                # For coloring text output

while True:
    expr = raw_input(">>> ")
    try:
        _ = eval(expr)
        print(re.sub('5', _term.bold_red_on_green('5'), str(_), 
                     flags=re.UNICODE))
    except:
        exec(expr)