[Python-Dev] unscriptable?

Georg Brandl g.brandl at gmx.net
Mon Apr 21 19:27:27 CEST 2008


Alexander Belopolsky schrieb:
>> ruby: undefined method `[]=' for 1:Fixnum (NoMethodError)
> 
> I think it will be natural to unify [] error message with
> the other binary ops:
> 
> Now:
>>>> 1+""
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
> TypeError: unsupported operand type(s) for +: 'int' and 'str'
> 
> Proposal:
>>>> 1[2]
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
> TypeError: unsupported operand type(s) for []: 'int' and 'int'

This is misleading, since it suggests that you can remedy this
by using another type in the subscript, which isn't possible.

Georg



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