Send empty dictionary instead of null for iot queries (#1145)

kasa/device_factory.py

@@ -32,8 +32,8 @@ from .xortransport import XorTransport
 
 _LOGGER = logging.getLogger(__name__)
 
-GET_SYSINFO_QUERY = {
-    "system": {"get_sysinfo": None},
+GET_SYSINFO_QUERY: dict[str, dict[str, dict]] = {
+    "system": {"get_sysinfo": {}},
 }
 
 

kasa/discover.py

@@ -296,8 +296,8 @@ class Discover:
 
     DISCOVERY_PORT = 9999
 
-    DISCOVERY_QUERY = {
-        "system": {"get_sysinfo": None},
+    DISCOVERY_QUERY: dict[str, dict[str, dict]] = {
+        "system": {"get_sysinfo": {}},
     }
 
     DISCOVERY_PORT_2 = 20002

kasa/iot/iotdevice.py

@@ -207,6 +207,8 @@ class IotDevice(Device):
     def _create_request(
         self, target: str, cmd: str, arg: dict | None = None, child_ids=None
     ):
+        if arg is None:
+            arg = {}
         request: dict[str, Any] = {target: {cmd: arg}}
         if child_ids is not None:
             request = {"context": {"child_ids": child_ids}, target: {cmd: arg}}

kasa/klaptransport.py

@@ -88,7 +88,6 @@ class KlapTransport(BaseTransport):
     """
 
     DEFAULT_PORT: int = 80
-    DISCOVERY_QUERY = {"system": {"get_sysinfo": None}}
     SESSION_COOKIE_NAME = "TP_SESSIONID"
     TIMEOUT_COOKIE_NAME = "TIMEOUT"