Question

I’m working in a code and I have a list like:

listA = (
    ['name1', 'A11,A12,A13', 'B11,B12,B13', 'C11,C12,C13'],
    ['name2', 'A21,A22', 'B21,B22', 'C21,C22'],
    ['name3', 'A31,A32,A33,A34,A35', 'B31,B32,B33,B34,B35', 'C31,C32,C33,C34,C35' ],
)

and I need to get:

listA = (
    ['name1', 'A11', 'B11', 'C11'],
    ['name1', 'A12', 'B12', 'C12'],
    ['name1', 'A13', 'B13', 'C13'],
    ['name2', 'A21', 'B21', 'C21'],
    ['name2', 'A22', 'B22', 'C22'],
    ['name3', 'A31', 'B31', 'C31'],
    ['name3', 'A32', 'B32', 'C32'],
    ['name3', 'A33', 'B33', 'C33'],
    ['name3', 'A34', 'B34', 'C34'],
    ['name3', 'A35', 'B35', 'C35'],
)

please help me, I’m staked.
Thanks for your time.

Answer 1

list_b = []
for x in list_a:
    i = iter(x)
    name = next(i)
    list_b.extend((name,) + t for t in zip(*(y.split(",") for y in i)))