在后台启动简单的 Python Web 服务器并继续执行脚本

Question

I am attempting to start a simple HTTP web server in python and then ping it with the selenium driver. I can get the web server to start but it "hangs" after the server starts even though I have started it in a new thread.

from socket import *
from selenium import webdriver
import SimpleHTTPServer
import SocketServer
import thread


def create_server():
    port = 8000
    handler = SimpleHTTPServer.SimpleHTTPRequestHandler
    httpd = SocketServer.TCPServer(("", port), handler)
    print("serving at port:" + str(port))
    httpd.serve_forever()


thread.start_new_thread(create_server())

print("Server has started. Continuing..")

browser = webdriver.Firefox()
browser.get("http://localhost:8000")

assert "<title>" in browser.page_source
thread.exit()

The server starts but the script execution stops after the server has started. The code after I start the thread is never executed.

How do I get the server to start and then have the code continue execution?

Answer 1

Start your thread with function create_server (without calling it () ):

thread.start_new_thread(create_server, tuple())

If you call create_server() , it will stop at httpd.serve_forever() .

Answer 2

For Python 3 you can use this:

import threading

threading.Thread(target=create_server).start()