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Fri Aug 7 02:22:00 CEST 2009 · https://mail.python.org/pipermail/python-dev/2009-August/091073.html

Dino Viehland wrote:
> MRAB wrote:
>> Dino Viehland wrote:
>>> On option 1 is this legal then?
>>>
>>> x = float(string) except float('nan') if some_check() else float('inf') if
>> ValueError
>> Well, is this is legal?
>>
>>      try:
>>          x = float(string)
>>      except some_check():
>>          x = float('nan')
>>      except ValueError:
>>          x = float('inf')
>>
> 
> I was thinking this was would be equal to:
> 
> x = float(string) except (float('nan') if some_check() else float('inf')) if ValueError
> 
I suppose it depends on the precedence of 'x except y if z' vs 'x if y
else y'.

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Showing content from https://mail.python.org/pipermail/python-dev/2009-August/091073.html below:

[Python-Dev] (try-except) conditional expression similar to (if-else) conditional (PEP 308)