[docs] [issue12955] urllib.request example should use "with ... as:"

[Martin Panter]

Martin Panter added the comment:

Here is a patch to change the urlopen() examples to use context managers where appropriate.

There were also a few examples of handling HTTPError which I didn’t touch, because the whole file object versus exception object thing is probably a separate can of worms.

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keywords: +patch
Added file: http://bugs.python.org/file38049/urlopen-with.patch

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