zip() function example in tutorial

[jsizelove]

BPO	3522
Nosy	@birkenfeld
Files	datastructures.diff

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = 'https://github.com/birkenfeld'
closed_at = <Date 2008-08-08.06:44:21.720>
created_at = <Date 2008-08-08.00:11:52.510>
labels = ['docs']
title = 'zip() function example in tutorial'
updated_at = <Date 2008-08-08.06:44:21.719>
user = 'https://bugs.python.org/jsizelove'

bugs.python.org fields:

activity = <Date 2008-08-08.06:44:21.719>
actor = 'georg.brandl'
assignee = 'georg.brandl'
closed = True
closed_date = <Date 2008-08-08.06:44:21.720>
closer = 'georg.brandl'
components = ['Documentation']
creation = <Date 2008-08-08.00:11:52.510>
creator = 'jsizelove'
dependencies = []
files = ['11077']
hgrepos = []
issue_num = 3522
keywords = ['patch']
message_count = 2.0
messages = ['70871', '70884']
nosy_count = 2.0
nosy_names = ['georg.brandl', 'jsizelove']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue3522'
versions = ['Python 3.0']

[jsizelove]

The zip() function is now a generator in Python 3.0. There is an
example of using the zip() function in the Python 3.0 tutorial,
http://docs.python.org/dev/3.0/tutorial/datastructures.html.

When running the example, I got:

>>> mat = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
>>> zip(*mat)
<zip object at 0x70fc60>

I wrapped it in a call to list() to get the example output:

>>> list(zip(*mat))
[(1, 4, 7), (2, 5, 8), (3, 6, 9)]

The attached patch file contains this change.

[birkenfeld]

Thanks, applied in r65592.