lambda arguments unpack error

Question

In Python 2 this code is OK:

f = lambda (m, k): m + k

m = [1,2,3,4]
k = [5,6,7,8]

print(map(f, zip(m, k)))

but in Python 3 the following

Answer 1

Just use

map(f, m, k)

Note that f can be

from operator import add
map(add, m, k)