dict comprehension

#dict comprehension

dict_comp_test = [
    (1, 'seoul'),
    (2, 'busan'),
    (3, 'incheon'),
]

dict_test_1 = {city: c for c, city in dict_comp_test}
print(dict_test_1) # {'seoul': 1, 'busan': 2, 'incheon': 3}

dict_test_2 = {code: city.upper() for city, code in dict_test_1.items() if code > 1}
print(dict_test_2) # {2: 'BUSAN', 3: 'INCHEON'}