Terry J. Reedy <[email protected]> added the comment:
On 3.2.2, your example (adapted) produces
>>>
2945 characters fetched
So, as Senthil said, the requested feature already exists. But it cannot be
added to the 2.7 series; the Python 2.7 *language* is feature frozen. 2.7.z bug
fixes serve to make the implementation better match the intended language.
Prior to the addition of with..., the standard way to close things was with
explicit .close() or implicit closing when the function returned or the program
exited. In the 3.2 docs, "20.5.21. Examples", there are several examples with
f = <some opener>
<do something with f>
(closing ignored)
Where possible, these could and should be changed in 3.2+ docs to
with <some opener> as f:
<do something with f>
to promote the new idiom. This had been done in other chapters. Perhaps there
is also a need for 'X supports the context manager protocol' to be added here
or there. But showing that in the examples would make the point.
I have changed the title of this issue to match.
----------
components: +Documentation -Library (Lib)
stage: test needed -> needs patch
title: urllib2.build_opener().open() is not friendly to "with ... as:" ->
urllib.request example should use "with ... as:"
versions: +Python 3.2
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<http://bugs.python.org/issue12955>
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