On Wed, 11 Feb 2015 18:45:40 +1300
Greg Ewing <greg.ew...@canterbury.ac.nz> wrote:
> Antoine Pitrou wrote:
> >>>>bytearray(b"a") + b"bc"
> >
> > bytearray(b'abc')
> >
> >>>>b"a" + bytearray(b"bc")
> >
> > b'abc'
> >
> > It's quite convenient.
>
> It's a bit disconcerting that the left operand wins,
> rather than one of them being designated as the
> "wider" type, as occurs with many other operations on
> mixed types, e.g. int + float.
There is no "wider" type here. This behaviour is perfectly logical.
> In any case, these seem to be special-case combinations.
No:
>>> b"abc" + array.array("b", b"def")
b'abcdef'
>>> bytearray(b"abc") + array.array("b", b"def")
bytearray(b'abcdef')
Regards
Antoine.
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