Miki a écrit :
> Hello Arnaud,
>
>
>>Imagine I have three functions a(x), b(x), c(x) that each return
>>something or raise an exception. Imagine I want to define a function
>>that returns a(x) if possible, otherwise b(x), otherwise c(x),
>>otherwise raise CantDoIt.
>
> Exceptions are for error handling, not flow control.
def until(iterable,sentinel):
for item in iterable:
if item == sentinel:
raise StopIteration
yield item
>>> for item in until(range(10), 5):
... print item
...
0
1
2
3
4
>>>
Exceptions *are* a form of flow control.
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