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homework.py
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homework.py
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from dataclasses import dataclass, asdict, fields
from typing import Collection
@dataclass
class InfoMessage:
"""Информационное сообщение о тренировке."""
training_type: str
duration: float
distance: float
speed: float
calories: float
INFO = ('Тип тренировки: {training_type}; '
'Длительность: {duration:.3f} ч.; '
'Дистанция: {distance:.3f} км; '
'Ср. скорость: {speed:.3f} км/ч; '
'Потрачено ккал: {calories:.3f}.'
)
def get_message(self) -> str:
return self.INFO.format(**asdict(self))
@dataclass()
class Training:
"""Базовый класс тренировки."""
action: int
duration: float
weight: float
M_IN_KM = 1000
HOUR_IN_MIN = 60
LEN_STEP = 0.65
def get_distance(self) -> float:
"""Получить дистанцию в км."""
return self.action * self.LEN_STEP / self.M_IN_KM
def get_mean_speed(self) -> float:
"""Получить среднюю скорость движения."""
return self.get_distance() / self.duration
def get_spent_calories(self) -> float:
"""Получить количество затраченных калорий."""
pass
def show_training_info(self) -> InfoMessage:
"""Вернуть информационное сообщение о выполненной тренировке."""
return InfoMessage(
type(self).__name__,
self.duration,
self.get_distance(),
self.get_mean_speed(),
self.get_spent_calories()
)
@dataclass()
class Running(Training):
"""Тренировка: бег."""
SPEED_MULTIPLIER_1 = 18
SPEED_SHIFT = 20
def get_spent_calories(self):
return (
(
self.SPEED_MULTIPLIER_1
* self.get_mean_speed()
- self.SPEED_SHIFT
)
* self.weight
/ self.M_IN_KM
* self.duration
* self.HOUR_IN_MIN
)
@dataclass()
class SportsWalking(Training):
"""Тренировка: спортивная ходьба."""
height: float
WEIGHT_MULTIPLIER_1 = 0.035
WEIGHT_MULTIPLIER_2 = 0.029
COEFFICIENT_DEGREE = 2
def get_spent_calories(self) -> float:
return (
(
self.WEIGHT_MULTIPLIER_1
* self.weight
+ (
self.get_mean_speed()
** self.COEFFICIENT_DEGREE
// self.height
)
* self.WEIGHT_MULTIPLIER_2
* self.weight
)
* self.duration
* self.HOUR_IN_MIN
)
@dataclass()
class Swimming(Training):
"""Тренировка: плавание."""
length_pool: float
count_pool: int
LEN_STEP = 1.38
SWIMMING_SPEED_SHIFT = 1.1
SPEED_MULTIPLIER_2 = 2
def get_distance(self) -> float:
return self.action * self.LEN_STEP / self.M_IN_KM
def get_mean_speed(self):
return (self.length_pool * self.count_pool
/ self.M_IN_KM / self.duration
)
def get_spent_calories(self):
return ((self.get_mean_speed() + self.SWIMMING_SPEED_SHIFT)
* self.SPEED_MULTIPLIER_2 * self.weight
)
SPORTS = {
'RUN': (Running, len(fields(Running))),
'WLK': (SportsWalking, len(fields(SportsWalking))),
'SWM': (Swimming, len(fields(Swimming)))
}
ERROR_SPORT = '{} нет в базе данных.'
ERROR_PARAMETERS = 'Для {} необходимо {} параметра, а вы ввели {}.'
def read_package(workout: str, date: Collection) -> Training:
"""Прочитать данные полученные от датчиков."""
if workout not in SPORTS:
raise ValueError(ERROR_SPORT.format(workout))
sport, parameters = (SPORTS.get(workout)[0],
SPORTS.get(workout)[1]
)
if parameters != len(date):
raise ValueError(
ERROR_PARAMETERS.format
(
workout,
parameters,
len(date)
)
)
return sport(*date)
def main(training: Training) -> None:
"""Главная функция."""
print(training.show_training_info().get_message())
if __name__ == '__main__':
packages = [
('SWM', [720, 1, 80, 25, 40]),
('RUN', [15000, 1, 75]),
('WLK', [9000, 1, 75, 180]),
]
for workout_type, data in packages:
main(read_package(workout_type, data))