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# 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)
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 = ''
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