Python - 对元组的列表理解

Question

I have two arrays inside tuple and need to iterate over it.

recs = ([1,2,3], [4,5,6])
[print(f, s) for f, s in recs]

But got error:

ValueError: too many values to unpack (expected 2)

How can I do it?

PS print only for debug example

Answer 1

zip is the function you're after:

_ = [print(*values, end=' ') for values in zip(*recs)]

values here is the (f, s) tuple. This way it will generalize beyond just 2 lists

Answer 2

Do you just want to iterate over each of the 2 arrays? Like: [print(array) for array in recs]

Or do you want to iterate over the values in each array as well, like: [[print(num) for num in array] for array in recs]