VanceE wrote:
> Just curious.
>
> type([]) == type(())
> is False as expected
>
> and
>
> assert type([]) == type(())
> throws an AssertionError as expected.
>
> However the following is not an error
>
> for x in []:
> assert type(x) == type(())
>
> I expected an AssertionError but get no errors at all.
> Any explaination?
Others have said what happens. Bit of a mind bender -- here's the smallest
change to do what you expected:
Python 2.6.2 (release26-maint, Apr 19 2009, 01:56:41)
[GCC 4.3.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> for x in [],:
... assert type(x) == type (())
...
Traceback (most recent call last):
File "<stdin>", line 2, in <module>
AssertionError
>>>
Because of the comma, this creates a tuple containing the empty list, and
iterates over the tuple.
Mel.
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