Python -检查应用程序是否为web浏览器

import http.server
import socketserver

PORT = 8000

Handler = http.server.SimpleHTTPRequestHandler

with socketserver.TCPServer(("", PORT), Handler) as httpd:
    print("Serving at port", PORT)
    httpd.serve_forever()

import http.server
import socketserver

class MyHandler(http.server.SimpleHTTPRequestHandler):
    def do_GET(self):
        user_agent = self.headers.get('User-Agent')
        if 'Mozilla' in user_agent:
            self.send_response(200)
            self.send_header('Content-type', 'text/html')
            self.end_headers()
            self.wfile.write(b'This is a web browser')
        else:
            self.send_response(200)
            self.send_header('Content-type', 'text/html')
            self.end_headers()
            self.wfile.write(b'This is not a web browser')

PORT = 8000

with socketserver.TCPServer(("", PORT), MyHandler) as httpd:
    print("Serving at port", PORT)
    httpd.serve_forever()

from flask import Flask, request

app = Flask(__name__)

@app.route('/')
def check_browser():
    user_agent = request.headers.get('User-Agent')
    if 'Mozilla' in user_agent:
        return 'This is a web browser'
    else:
        return 'This is not a web browser'

if __name__ == '__main__':
    app.run()