Fixed #20238 -- Added threading support to LiveServerTestCase

django/core/servers/basehttp.py

@@ -85,6 +85,12 @@ def handle_error(self, request, client_address):
             super(WSGIServer, self).handle_error(request, client_address)
 
 
+class ThreadedWSGIServer(socketserver.ThreadingMixIn, WSGIServer):
+    """
+    Multi-threaded WSGI server.
+    """
+
+
 # Inheriting from object required on Python 2.
 class ServerHandler(simple_server.ServerHandler, object):
     def handle_error(self):
@@ -162,10 +168,7 @@ def handle(self):
 
 def run(addr, port, wsgi_handler, ipv6=False, threading=False):
     server_address = (addr, port)
-    if threading:
-        httpd_cls = type(str('WSGIServer'), (socketserver.ThreadingMixIn, WSGIServer), {})
-    else:
-        httpd_cls = WSGIServer
+    httpd_cls = ThreadedWSGIServer if threading else WSGIServer
     httpd = httpd_cls(server_address, WSGIRequestHandler, ipv6=ipv6)
     if threading:
         # ThreadingMixIn.daemon_threads indicates how threads will behave on an

django/test/testcases.py

@@ -22,7 +22,7 @@
 from django.core.management import call_command
 from django.core.management.color import no_style
 from django.core.management.sql import emit_post_migrate_signal
-from django.core.servers.basehttp import WSGIRequestHandler, WSGIServer
+from django.core.servers.basehttp import WSGIRequestHandler, ThreadedWSGIServer
 from django.db import DEFAULT_DB_ALIAS, connection, connections, transaction
 from django.forms.fields import CharField
 from django.http import QueryDict
@@ -1289,7 +1289,9 @@ def run(self):
             connections.close_all()
 
     def _create_server(self, port):
-        return WSGIServer((self.host, port), QuietWSGIRequestHandler, allow_reuse_address=False)
+        return ThreadedWSGIServer(
+            (self.host, port), QuietWSGIRequestHandler, allow_reuse_address=False
+        )
 
     def terminate(self):
         if hasattr(self, 'httpd'):