Getting the first elements per row in an array in Python?

Question

Let\'s say i have an array of Tuples, s, in the form of:

s = ((1, 23, 34),(2, 34, 44), (3, 444, 234))

and i want to return another Tuple,

Answer 1

The list comprehension method given by Ignacio is the cleanest.

Just for kicks, you could also do:

zip(*s)[0]

*s expands s into a list of arguments. So it is equivalent to

zip( (1, 23, 34),(2, 34, 44), (3, 444, 234))

And zip returns n tuples where each tuple contains the nth item from each list.