fix daemonizing server on Unix

agkyra/protocol.py

@@ -691,8 +691,12 @@ def launch_server(callback, debug):
         command += opts
         subprocess.Popen(command, close_fds=True)
     else:
+        import daemon
         pid = os.fork()
         if not pid:
-            command = [callback, callback]
-            command += opts
-            os.execlp(*command)
+            with daemon.DaemonContext():
+                command = [callback, callback]
+                command += opts
+                os.execlp(*command)
+        else:
+            os.wait()

setup.py

@@ -43,6 +43,9 @@ INSTALL_REQUIRES = [
     'certifi',
 ]
 
+if not sys.platform.startswith("win"):
+    INSTALL_REQUIRES.append("python-daemon")
+
 EXTRAS_REQUIRES = {
 }