New submission from Andrés Marzal <[email protected]>:
I've implemented a LinkedList as a MutableSequence and __iadd__, which
is inherited from MutableSequence, does not perform as expected.
The _abcoll.py file contains this:
class MutableSequence(Sequence):
...
def __iadd__(self, values):
self.extend(values)
The method __iadd__ does not return anything, buy it should return
self. Right now, the sentence
aLinkedList += [1, 2]
sets the value of aLinkedList to None.
----------
components: Library (Lib)
messages: 87872
nosy: amarzal
severity: normal
status: open
title: MutableSequence.__iadd__ should return self
type: behavior
versions: Python 2.6
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Python tracker <[email protected]>
<http://bugs.python.org/issue6037>
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