Kent Johnson wrote:
> Ricardo Aráoz wrote:
>> PEP 0343 is not an
>> example of clarity in the definition of a statement, it mixes
>> justification with historic development with definition with actual
>> equivalent code. Couldn't or wouldn't bother to understand it.
>
> Here is a better starting point:
> http://docs.python.org/whatsnew/pep-343.html
>
> Kent
>
Thanks Kent, it's clearer, but it gets rapidly complicated. Anyway
looking at the simpler use, if you would have exception handling in :
try :
with open('/etc/passwd', 'r') as f:
for line in f:
print line
... more processing code ...
except ExceptionsOnOpening :
... exception handling
except :
... exceptions inside the for
Whereas traditionally :
try :
f = open('/etc/passwd', 'r')
for line in f:
print line
... more processing code ...
except ExceptionsOnOpening :
... exception handling
except :
... exceptions inside the for
I don't see much difference except in the with example you have one more
level of indentation.
Don't know about more advanced uses, I'll try to understand them when
and if I ever need them.
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