From: sto.mar@...
Date: 2013-07-31T06:11:35+09:00
Subject: Re: How to check an input IS an integer ?

Am 30.07.2013 22:44, schrieb Joel Pearson:
>> Other possibilities can easily be found by searching the archives,
>> e.g. using Integer(), (which involves rescuing exceptions, which I
>> do not like for this use case too much).
>>
>> Regards,
>> Marcus
> 
> Isn't that the whole point of Integer() ?
> A user entering invalid input is an Exception. If the programmer wants 
> to handle it and retry then that is a valid use of Exception handling.

I think opinions diverge on this. Some people would argue that you
must expect a user to enter invalid input, ergo: no exception.
A matter of taste.

However: when you decide on Integer(), make sure to rescue the
correct exception class, rescuing _all_ exceptions can be problematic
(it could e.g. mute exceptions caused by a typo in the code).

Regards,
Marcus


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