Setting SO_REUSEADDR on socket

changelog.txt

@@ -1,3 +1,6 @@
+Version 0.2.7 (2018-03-)
+- Setting SO_REUSEADDR on socket for proper restarts
+
 Version 0.2.6 (2018-01-31)
 - Displaying current filename in title (Issue #76) @danielperna84
 - Added menu item to open configurator in new tab (Issue #76) @danielperna84

configurator.py

@@ -4214,6 +4214,7 @@ def main(args):
     else:
         Handler = RequestHandler
     HTTPD = CustomServer(server_address, Handler)
+    HTTPD.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
     if SSL_CERTIFICATE:
         HTTPD.socket = ssl.wrap_socket(HTTPD.socket,
                                        certfile=SSL_CERTIFICATE,