Print a Christmas tree in Python

christmas_tree.py

# Task: Given a number of tree levels. Print a Christmas tree with the given levels, filled by star symbols (*).

# Example:
#
# print_a_tree(20)
#
#                    *
#                   ***
#                  *****
#                 *******
#                *********
#               ***********
#              *************
#             ***************
#            *****************
#           *******************
#          *********************
#         ***********************
#        *************************
#       ***************************
#      *****************************
#     *******************************
#    *********************************
#   ***********************************
#  *************************************
# ***************************************

# Solution:

def print_tree_level(level: int, levels: int):
    spaces = levels - level
    stars = 2 * (level - 1) + 1
    print(' ' * spaces, '*' * stars)


def print_a_tree(levels: int):
    for level in range(1, levels + 1):
        print_tree_level(level, levels)