Listenverständniser iteration
xx = [ (i,j) for i in range(1,6) for j in range(1,4) ]
print(xx)
# output
# [
# (1, 1), (1, 2), (1, 3),
# (2, 1), (2, 2), (2, 3),
# (3, 1), (3, 2), (3, 3),
# (4, 1), (4, 2), (4, 3),
# (5, 1), (5, 2), (5, 3)
# ]
Sore Sloth