sum for sequences?

[Duncan Booth]

kj <no.email at please.post> wrote:

> Is there a sequence-oriented equivalent to the sum built-in?  E.g.:
> 
>   seq_sum(((1, 2), (5, 6))) --> (1, 2) + (5, 6) --> (1, 2, 5, 6)
> 
> ?
> 
Apart from the suggestions for Google for general list flattening, for this 
specific example you could just use the 'sum' built-in:

>>> sum(((1, 2), (5, 6)), ())
(1, 2, 5, 6)

Just give it an empty tuple as the starting value.