A C-like if statement
Antoon Pardon
apardon at forel.vub.ac.be
Fri Feb 24 06:49:31 EST 2006
Op 2006-02-23, Roy Smith schreef <roy at panix.com>:
> Bob Greschke <bob at passcal.nmt.edu> wrote:
>>I miss being able to do something like this in Python
>>
>>1f (I = a.find("3")) != -1:
>> print "It's here: ", I
>>else:
>> print "No 3's here"
>>
>>where I gets assigned the index returned by find() AND the if statement gets
>>to do its job in the same line. Then you don't have to have another like
>>that specifically gets the index of the "3". Is there a way to do this in
>>Python?
>
> It is a deliberate and fundamental design decision in Python that
> assignment is a statement, not an expression with side effects.
The only motivation I have heard for this decision is to easily
find typo related bugs. I can hardly find that a fundamental
design decision.
--
Antoon Pardon
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