Reinhold Birkenfeld wrote:
> Fredrik Lundh wrote:
>> Walter Dörwald wrote:
>>
>>> We have sys.displayhook and sys.excepthook. Why not add a sys.inputhook?
>>> sys.inputhook gets passed each line entered and may return True if it has
>>> processed the line inself and False if normal handling of the input should
>>> be
>>> done. This allows special treatment of "quit", "exit", "help" /.../
>> so how would such a hook deal with the
>>
>> >>> def exit():
>> ... pass
>> >>> exit
>>
>> case ?
>
> In the inputhook one would have to check for "exit" being defined at
> interpreter level.
Which is fairly trivial given a slight change to my proposed default input hook:
def default_inputhook(statement):
if statement in vars(sys.modules["__main__"]):
return False
try:
aliased = sys.alias[statement]
except KeyError:
return False
else:
aliased()
return True
That is, a real variable will always shadow an alias - you need to get rid of
the real variable before the alias will start working again (or else change
the name of the alias).
Or you can give the alias a different name via:
sys.alias["exit_"] = sys.alias["exit"]
Cheers,
Nick.
--
Nick Coghlan | [EMAIL PROTECTED] | Brisbane, Australia
---------------------------------------------------------------
http://www.boredomandlaziness.org
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