Cities 1.1

Cities is a simple tool for searching cities located at a given longitude and latitude range.

Cities is a simple tool for searching cities located at a given longitude and latitude range or a given region(country, state, province). All the cities returned are sorted by the importance of a city and the population density.

Install

pip install Cities

Features

1. fast(less than 0.01s for each retrieving), simple and convenient.
2. cover all the cities around the world.
3. the author is cute.

Required File

Download the city data and put it at any directory you want. Remember to set the path up when you initiate an instance.

Example

from Cities import cities_retriever

cr = cities_retriever.CitiesRetrieverByRect("Sources/dict_all_cities_rect2cities.json")
cities = cr.retrieve_cities(lon_start=-124.71, lon_end=-77.21, lat_start=25.24, lat_end=44.75, num=500) # num is optional, default: 999999
print(cities)
print(len(cities))

cr = cities_retriever.CitiesRetrieverByRegionName("Sources/dict_all_cities_region2cities.json")
cities = cr.retrieve_cities(country="United States", region="Washington", num=500) # region and num are optional
print(cities)
print(len(cities))

Note

the bigger the dict file is, the longer the loading time is.

4million cities --- 12s

1. dict_all_cities_region2cities.json
2. dict_all_cities_rect2cities.json

8000 cities --- < 1s

1. dict_cities_8000_region2cities.json
2. dict_cities_8000_rect2cities.json