Headers Requests Python User Agent
When sending a request from a Python script using the Requests library, it is important to specify the headers of the request. Headers contain additional information about the request, such as the user agent, which can affect how the server responds to the request.
User Agent
The user agent header identifies the client making the request, such as the web browser or app. Servers use this information to provide a customized response based on the client's capabilities or preferences. However, some websites or APIs may block requests from certain user agents, such as bots or outdated browsers.
To specify a user agent in a request using Requests, you can set the "User-Agent" header to a string representing the client. For example:
import requests
url = "https://www.example.com"
headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3"}
response = requests.get(url, headers=headers)
The example above sets the user agent to Google Chrome version 58 running on Windows 10.
Other Headers
Other headers may be necessary for certain requests, such as authentication tokens or language preferences. To set additional headers, you can add key-value pairs to the headers dictionary.
import requests
url = "https://api.example.com"
headers = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3",
"Authorization": "Bearer YOUR_ACCESS_TOKEN",
"Accept-Language": "en-US"
}
response = requests.get(url, headers=headers)
The example above sets the Authorization header for an API request using a bearer token and the Accept-Language header to specify the preferred language for the response.