Fix 'Implicit Optional' typing errors

Author: ndevenish

src/zocalo/cli/dlq_check.py

@@ -14,7 +14,9 @@
 #
 
 
-def check_dlq(zc: zocalo.configuration.Configuration, namespace: str = None) -> dict:
+def check_dlq(
+    zc: zocalo.configuration.Configuration, namespace: str | None = None
+) -> dict:
     """Monitor ActiveMQ queue activity."""
     jmx = JMXAPI(zc)
     if namespace:
@@ -48,7 +50,7 @@ def extract_queue_name(namestring):
 
 
 def check_dlq_rabbitmq(
-    zc: zocalo.configuration.Configuration, namespace: str = None
+    zc: zocalo.configuration.Configuration, namespace: str | None = None
 ) -> dict:
     rmq = RabbitMQAPI.from_zocalo_configuration(zc)
     return {

src/zocalo/util/rabbitmq.py

@@ -706,7 +706,10 @@ def health_checks(self) -> Tuple[Dict[str, Any], Dict[str, str]]:
         return success, failure
 
     def get(
-        self, endpoint: str, params: Dict[str, Any] = None, timeout: float | None = None
+        self,
+        endpoint: str,
+        params: Dict[str, Any] | None = None,
+        timeout: float | None = None,
     ) -> requests.Response:
         return self._session.get(
             f"{self._url}/{endpoint}", params=params, timeout=timeout
@@ -715,8 +718,8 @@ def get(
     def put(
         self,
         endpoint: str,
-        params: Dict[str, Any] = None,
-        json: Dict[str, Any] = None,
+        params: Dict[str, Any] | None = None,
+        json: Dict[str, Any] | None = None,
         timeout: float | None = None,
     ) -> requests.Response:
         return self._session.put(
@@ -735,7 +738,10 @@ def post(
         )
 
     def delete(
-        self, endpoint: str, params: Dict[str, Any] = None, timeout: float | None = None
+        self,
+        endpoint: str,
+        params: Dict[str, Any] | None = None,
+        timeout: float | None = None,
     ) -> requests.Response:
         return self._session.delete(
             f"{self._url}/{endpoint}", params=params, timeout=timeout

src/zocalo/util/slurm/__init__.py

@@ -44,7 +44,10 @@ def from_zocalo_configuration(cls, zc: zocalo.configuration.Configuration):
         )
 
     def get(
-        self, endpoint: str, params: dict[str, Any] = None, timeout: float | None = None
+        self,
+        endpoint: str,
+        params: dict[str, Any] | None = None,
+        timeout: float | None = None,
     ) -> requests.Response:
         response = self.session.get(
             f"{self.url}/{endpoint}", params=params, timeout=timeout
@@ -55,8 +58,8 @@ def get(
     def put(
         self,
         endpoint: str,
-        params: dict[str, Any] = None,
-        json: dict[str, Any] = None,
+        params: dict[str, Any] | None = None,
+        json: dict[str, Any] | None = None,
         timeout: float | None = None,
     ) -> requests.Response:
         response = self.session.put(
@@ -79,7 +82,10 @@ def post(
         return response
 
     def delete(
-        self, endpoint: str, params: dict[str, Any] = None, timeout: float | None = None
+        self,
+        endpoint: str,
+        params: dict[str, Any] | None = None,
+        timeout: float | None = None,
     ) -> requests.Response:
         response = self.session.delete(
             f"{self.url}/{endpoint}", params=params, timeout=timeout