list to tuple and vice versa
David C Ullrich
dullrich at sprynet.com
Tue Oct 20 14:35:43 EDT 2009
On Sun, 18 Oct 2009 14:33:17 +1100, Ben Finney wrote:
> Jabba Laci <jabba.laci at gmail.com> writes:
>
>> Hi,
>>
>> I have some difficulties with list -> tuple conversion:
>>
>> t = ('a', 'b')
>> li = list(t) # tuple -> list, works print li # ['a', 'b']
>>
>> tu = tuple(li) # list -> tuple, error print tu # what I'd expect:
>> ('a', 'b')
>
> Works fine for me:
>
> Python 2.5.4 (r254:67916, Sep 26 2009, 11:00:02) [GCC 4.3.4] on
> linux2
> Type "help", "copyright", "credits" or "license" for more
> information.
> >>> t = ('a', 'b')
> >>> li = list(t)
> >>> print li
> ['a', 'b']
> >>>
> >>> tu = tuple(li)
> >>> print tu
> ('a', 'b')
>
>> The error message is: "TypeError: 'tuple' object is not callable".
>
> Nothing in your example code is calling a tuple object. This makes me
> suspect that what you showed us is not what you actually tried.
>
> You might want to try the above session yourself and paste the resulting
> session *literally* (rather than re-typing) as I did above, so we can
> see what you're seeing.
Surely it's obvious what he did - something like
tuple = tuple([1,2])
After all, "tuple" is a reasonable name...
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