[Tim]
> I'd like to see a plausible use case for
>
> '' in str
>
> returning True, then.
[Gordon McMillan]
> Any code that currently does
> str.find(x) >= 0
You're saying that you actually do that in cases where x may be an empty
string, and that it's useful to get a True result in at least one such case?
If you are saying that, it needs more details; but if you're not saying
that, it's not a relevant use case.
> I tend to use:
>
> pos = str.find(x)
> if pos > -1:
>
> because I'm normally interested in where.
Sure -- that's what .find() is for, after all. But you're also saying that
your algorithms expect to search for empty strings? Like in:
index = option_letter_string.find(letter)
if index >= 0:
list_of_option_functions[index]()
else:
raise UnknownOptionLetter(letter)
you make sure that list_of_option_functions[0] is suitable for processing
both the first option in option_letter_string and an empty "option letter"?
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