enforcing type better

src/utils/ipc_server.py

@@ -17,7 +17,7 @@ def threaded(fn):
 
 class IPCServer:
     ''' Create a listener so that other instances send requests back to existing instance. '''
-    def __init__(self, conn_type="socket"):
+    def __init__(self, conn_type: str = "socket"):
         self.is_ipc_alive   = False
         self._conn_type     = conn_type
         self.ipc_authkey    = b'app-ipc'
@@ -30,7 +30,7 @@ class IPCServer:
             self.ipc_port       = 8888
 
     @threaded
-    def create_ipc_server(self):
+    def create_ipc_server(self) -> None:
         if self._conn_type == "socket":
             if os.path.exists(self.ipc_address):
                 return
@@ -74,7 +74,7 @@ class IPCServer:
         listener.close()
 
 
-    def send_ipc_message(self, message="Empty Data..."):
+    def send_ipc_message(self, message: str = "Empty Data...") -> None:
         try:
             if self._conn_type == "socket":
                 conn = Client(address=self.ipc_address, family="AF_UNIX", authkey=self.ipc_authkey)
@@ -83,5 +83,6 @@ class IPCServer:
 
             conn.send(message)
             conn.send('close connection')
+            conn.close()
         except Exception as e:
             print(repr(e))