geo.py

import requests
from math import sin, cos, sqrt, atan2, radians


def get_coordinates(city):

    url = "https://geocode-maps.yandex.ru/1.x/"

    params = {
        'geocode': city,
        'format': 'json'
    }

    response = requests.get(url, params)
    json = response.json()
    point_str = json['response']['GeoObjectCollection']['featureMember'][0]['GeoObject']['Point']['pos']
    point_array = [float(x) for x in point_str.split(' ')]

    return point_array


def get_country(city):

    url = "https://geocode-maps.yandex.ru/1.x/"

    params = {
        'geocode': city,
        'format': 'json'
    }

    response = requests.get(url, params)
    json = response.json()

    return json['response']['GeoObjectCollection']['featureMember'][0]['GeoObject']['metaDataProperty']['GeocoderMetaData']['AddressDetails']['Country']['CountryName']


def get_distance(p1, p2):

    R = 6373.0

    lon1 = radians(p1[0])
    lat1 = radians(p1[1])
    lon2 = radians(p2[0])
    lat2 = radians(p2[1])

    dlon = lon2 - lon1
    dlat = lat2 - lat1

    a = sin(dlat / 2) ** 2 + cos(lat1) * cos(lat2) * sin(dlon / 2) ** 2
    c = 2 * atan2(sqrt(a), sqrt(1 - a))

    distance = R * c

    return distance