[New-bugs-announce] [issue28837] 2to3 does not wrap zip correctly

[Carsten]

New submission from Carsten:

The following Python 2.7 code is not converted correctly to Python 3 by 2to3:

c = [(1, 10), (2, 20)]

# get a tuple with the first entries of every tuple in c,
# i.e. (1, 2)
x = zip(*c)[0]

print x


The result is


c = [(1, 10), (2, 20)]

# get a tuple with the first entries of every tuple in c,
# i.e. (1, 2)
x = zip(*c)[0]

print(x)



However running it with python3 gives the following exception

Traceback (most recent call last):
  File "result.py", line 7, in <module>
    x = zip(*c)[0]
TypeError: 'zip' object is not subscriptable



Tested with 2to3-2.7 and 2to3-3.4 on debian stable (jessie)

----------
components: 2to3 (2.x to 3.x conversion tool)
messages: 282075
nosy: cvk
priority: normal
severity: normal
status: open
title: 2to3 does not wrap zip correctly
type: behavior
versions: Python 2.7, Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28837>
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