pascal.py

def next_row(a):
    return [0] + [a + b for a, b in zip(a, a[1:])] + [0]


def g(n):
    lst = [[0, 1, 0]]
    for _ in range(n):
        lst.append(next_row(lst[-1]))
    return lst


def print_pascal(pascal_lists):
    longest_size = len(pascal_lists[-1])
    for lst in pascal_lists:
        current_length = len(lst)
        content = " ".join([f"{item:^5}" for item in lst if item != 0])
        print(f'{" " * ((longest_size - current_length)) *3 }{content}')


print_pascal(g(14))