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602-comprehensions.py
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602-comprehensions.py
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from dataclasses import dataclass
from typing import *
@dataclass
class Address:
street: str
city: str
country: str
@dataclass
class User:
id: int
first_name: str
last_name: str
email: str
address: Address
def users_names(users: List[User]):
result = []
for user in users:
result.append(user.first_name)
return result
def users_names_better(users: List[User]):
return [user.first_name.upper() for user in users]
def warszawiacy(users: List[User]):
return [user.first_name for user in users if user.address.city == 'Warszawa']
def foo(users: List[User]):
return [user.first_name if user.address.city == 'Warszawa' else user.last_name for user in users]
def kobiety(users: List[User]):
pass
def osoby_z_mailem_na_gmailu(users: List[User]):
pass
def adresy_email_nie_gmaila(users: List[User]):
pass
def imie_nazwisko_wszystkich(users: List[User]):
#['jan_kowalski', 'danuta_nowak'...]
pass
def uzytkownicy_pogrupowani_miastami(users: List[User]):
"""
{
'Warszawa': [...],
'Wroclaw': [...],
'Gdansk':[...]
"""
pass
if __name__ == '__main__':
a1 = Address('Krakowskie Przedmieście', 'Warszawa', 'Polska')
a2 = Address('Aleje Jerozolimskie', 'Warszawa', 'Polska')
a3 = Address('Kazimierza Wielkiego', 'Wrocław', 'Polska')
a4 = Address('Bałtycka', 'Gdańsk', 'Polska')
u1 = User(1, 'Jan', 'Kowalski', 'jan@kowalski.pl', a1)
u2 = User(2, 'Danuta', 'Nowak', 'danuta.nowak@gmail.com', a2)
u3 = User(3, 'Jacek', 'Sutryk', 'prezydent@wroclaw.pl', a3)
u4 = User(4, 'Katarzyna', 'Gdańska', 'katarzyna.gdanska@gmail.com', a4)
users = [u1, u2, u3, u4]
print(users_names(users))
print(users_names_better(users))
print(warszawiacy(users))