Question

I have a nested list that is for example: A_board=[['0', '0'],['1', '1']]. And I want to take this nested list apart and get a result, which if I call print result, it would display: < 0 0 > < 1 1 >

I am not sure how to approach this with loops, I made the matrix into a list first, by doing:

boardWidth_a=len(A_board)
listLength=len(board[0])

for q in range(0,boardWidth_a):
    for x in range(0, listLength):
        board1D.append(int(board[q][x]));

with board1D being [0, 0, 1, 1] now, what can i do to board1D to make it into < 0 0 > < 1 1 >?

Answer 1

Seems a bit convoluted – can you not just do:

>>> ' '.join('< {} {} >'.format(*items) for items in A_board)
'< 0 0 > < 1 1 >'

For n-tuples, adapt the following:

>>> a = [ [0], [0], [0] ]
>>> fmt = '< {} >'.format
>>> from itertools import chain
>>> fmt(' '.join(map(str, chain.from_iterable(a))))
'< 0 0 0 >'