Python programming practice: How to use Baidu Map API to implement geographical location recommendation function

Python Programming Practice: How to Use Baidu Map API to Implement the Location Recommendation Function

In modern society, with the rapid development of the Internet, location recommendation has become an important part of commercial applications. For example, when we are traveling, we want to find nearby restaurants, attractions, or shopping malls. This geographical location recommendation function is provided by various map software or APPs. As one of the most widely used map services in China, Baidu Maps provides a powerful geographical location recommendation function. Using the Baidu Map API to implement the geographical location recommendation function through the Python programming language allows us to better master this technology.

Baidu Map API is a network interface based on HTTP/HTTPS protocol. It provides a rich application interface for obtaining geographical location information and performing other related operations. Through the Python programming language, we can use Baidu Map API to obtain POI (Point of Interest) information around a specified location, thereby realizing the geographical location recommendation function.

First of all, we need to register an account on the Baidu Map open platform and create an application. After creating the application, we can obtain a key (AK), which is the credential used to access the Baidu Map API.

Next, we need to install Python’s requests library, which is a library that facilitates sending HTTP requests. Use the following command to install:

pip install requests

The following is a sample code that uses Baidu Map API to implement the geographical location recommendation function:

import requests

def get_location_recommendation(latitude, longitude, keyword):
    ak = 'your_ak'  # 替换成自己的AK
    url = f'http://api.map.baidu.com/place/v2/search?query={keyword}&location={latitude},{longitude}&radius=2000&output=json&ak={ak}'
    response = requests.get(url)
    if response.status_code == 200:
        results = response.json()
        for result in results['results']:
            print(result['name'], result['address'])

if __name__ == '__main__':
    latitude = 39.915
    longitude = 116.404
    keyword = '餐厅'
    get_location_recommendation(latitude, longitude, keyword)

In the above code, we define a get_location_recommendation Function, which accepts latitude and longitude and keywords as parameters. Inside the function, we use the Place API of Baidu Map API to obtain POI information near the specified location. Among them, the query parameter specifies the keywords we want to search, the location parameter specifies the longitude and latitude, the radius parameter specifies the radius of the search, output# The ## parameter specifies the format of the returned result, and the ak parameter is the key we obtained on the Baidu Map Open Platform.

get_location_recommendation function and print out the result.

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