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Showing content from http://svn.python.org/projects/python/branches/py3k-urllib/Demo/tkinter/guido/wish.py below:

# This is about all it requires to write a wish shell in Python! import _tkinter import os import sys tk = _tkinter.create(os.environ['DISPLAY'], 'wish', 'Tk', 1, 1) tk.call('update') cmd = '' while True: if cmd: prompt = '' else: prompt = '% ' try: sys.stdout.write(prompt) sys.stdout.flush() line = sys.stdin.readline() if not line: break except EOFError: break cmd += line if tk.getboolean(tk.call('info', 'complete', cmd)): tk.record(line) try: result = tk.call('eval', cmd) except _tkinter.TclError as msg: print('TclError:', msg) else: if result: print(result) cmd = ''

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