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      1 # This is about all it requires to write a wish shell in Python!
      2 
      3 import _tkinter
      4 import os
      5 
      6 tk = _tkinter.create(os.environ['DISPLAY'], 'wish', 'Tk', 1)
      7 tk.call('update')
      8 
      9 cmd = ''
     10 
     11 while 1:
     12     if cmd: prompt = ''
     13     else: prompt = '% '
     14     try:
     15         line = raw_input(prompt)
     16     except EOFError:
     17         break
     18     cmd = cmd + (line + '\n')
     19     if tk.getboolean(tk.call('info', 'complete', cmd)):
     20         tk.record(line)
     21         try:
     22             result = tk.call('eval', cmd)
     23         except _tkinter.TclError, msg:
     24             print 'TclError:', msg
     25         else:
     26             if result: print result
     27         cmd = ''
     28