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Slice assignment/deletion is not implemented #509

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pfalcon opened this issue Apr 19, 2014 · 3 comments
Closed

Slice assignment/deletion is not implemented #509

pfalcon opened this issue Apr 19, 2014 · 3 comments

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@pfalcon
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pfalcon commented Apr 19, 2014

We don't have following weird stuff implemented:

>>> a = [1,2,3,4]
>>> a[1:3] = [10,11,12,13]
>>> a
[1, 10, 11, 12, 13, 4]
>>> del a[2:5]
>>> a
[1, 10, 4]

This first of all relevant for lists, but should watch out for other types too.
@lurch
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lurch commented Apr 21, 2014

...and this also works with the 3-parameter form of slicing
(just tested in CPython3.4)

>>> a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> a[-8:8:2] = ['a', 'b', 'c']
>>> a
[0, 1, 'a', 3, 'b', 5, 'c', 7, 8, 9]
>>> del a[-9:8:2]
>>> a
[0, 'a', 'b', 'c', 8, 9]

@pfalcon
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pfalcon commented May 10, 2014

94d8246 starts to tackle this.

@pfalcon
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pfalcon commented Jun 2, 2014

Implementation for lists is now pretty complete. Closing for now.

@pfalcon pfalcon closed this as completed Jun 2, 2014
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@lurch @pfalcon