[Tutor] misunderstanding "any"

[col speed]

On 7 March 2012 11:50, Mark Lawrence <breamoreboy at yahoo.co.uk> wrote:
> On 07/03/2012 04:36, col speed wrote:
>>
>> On 7 March 2012 10:45, Mark Lawrence<breamoreboy at yahoo.co.uk>  wrote:
>>>
>>> On 07/03/2012 03:24, col speed wrote:
>
>> I *think* I understand:
>> Where it says:
>> "For the list and tuple types, ``x in y`` is true if and only if there
>>>
>>> exists an index *i* such that ``x == y[i]`` is true."
>>
>>
>> I suppose I am looking for .....an index *i* and *j* such that x[j] ==
>> y[i].
>>
>> Is that right?
>
>
> I reckon so although I don't believe that the interactive prompt lies.
>
>>>> a=tuple(range(10))
>>>> b=tuple(reversed(a))
>>>> a,b
> ((0, 1, 2, 3, 4, 5, 6, 7, 8, 9), (9, 8, 7, 6, 5, 4, 3, 2, 1, 0))
>>>> a[3] == b[3]
> False
>>>> a[5] == b[4]
> True
>
>> cheers
>> Col
>>
>>

Then we have:


>>> a = tuple(range(10))
>>> b = tuple(reversed(a))

>>> any(a) in b
True

>>> any(b) in a
True

>>> any((a,b)) in (a,b)
False  # I think I understand this now, but I must admit it looks confusing!

Thanks again
Col