sets.py

# set
set_a = {1, 2, 3, 4, 5, 6}
set_b = {4, 5, 6, 7, 8, 9}

set_uni = set_a | set_b  # union of sets
set_ist = set_a & set_b  # Intersection of sets
set_d_1 = set_a - set_b  # difference of sets
set_d_2 = set_b - set_a  # difference of set
set_smt = set_a ^ set_b  # Symmetric difference of sets
# print
print("set a: {} \nset b: {}".format(set_a, set_b))
print("union: {}\nintersection: {}\ndifference 1: {}\ndifference 2: {}\nsymmetric difference: {}".format(set_uni,
                                                                                              set_ist,
                                                                                              set_d_1,
                                                                                              set_d_2,
                                                                                              set_smt))