cpython/Demo/tkinter/guido/wish.py

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# This is about all it requires to write a wish shell in Python!
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import _tkinter
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import os
import sys
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tk = _tkinter.create(os.environ['DISPLAY'], 'wish', 'Tk', 1)
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tk.call('update')
cmd = ''
while 1:
if cmd: prompt = ''
else: prompt = '% '
try:
sys.stdout.write(prompt)
sys.stdout.flush()
line = sys.stdin.readline()
except EOFError:
break
cmd = cmd + (line + '\n')
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 = ''