Pascal's triangle in python.py

def create_triangle(num_rows):
    triangle = []
    for i in range(num_rows):
        row = [1] * (i + 1)
        if i >= 2:
            for j in range(1, i):
                row[j] = triangle[i - 1][j - 1] + triangle[i - 1][j]
        triangle.append(row)
    return triangle

def print_triangle(triangle):
    for row in triangle:
        print(" ".join(str(num) for num in row).center(len(triangle[-1]) * 3))

num_rows = int(input("Enter number of rows : "))

pascals_triangle = create_triangle(num_rows)
print_triangle(pascals_triangle)