Update string formatting to use f-string on core codebase (home-assis…

…tant#125988)

* Update string formatting to use f-string on core codebase

* Small change given review feedback

homeassistant/helpers/dispatcher.py

@@ -151,11 +151,11 @@ def _format_err[*_Ts](
     *args: Any,
 ) -> str:
     """Format error message."""
-    return "Exception in {} when dispatching '{}': {}".format(
+
+    return (
         # Functions wrapped in partial do not have a __name__
-        getattr(target, "__name__", None) or str(target),
-        signal,
-        args,
+        f"Exception in {getattr(target, "__name__", None) or target} "
+        f"when dispatching '{signal}': {args}"
     )
 
 

homeassistant/util/logging.py

@@ -196,8 +196,8 @@ def async_create_catching_coro[_T](
     trace = traceback.extract_stack()
     return catch_log_coro_exception(
         target,
-        lambda: "Exception in {} called from\n {}".format(
-            target.__name__,
-            "".join(traceback.format_list(trace[:-1])),
+        lambda: (
+            f"Exception in {target.__name__} called from\n"
+            + "".join(traceback.format_list(trace[:-1]))
         ),
     )

script/inspect_schemas.py

@@ -57,7 +57,9 @@ def add_msg(key, item):
         )
 
     for key in sorted(msg):
-        print("\n{}\n - {}".format(key, "\n - ".join(msg[key])))
+        print(f"\n{key}")
+        for val in msg[key]:
+            print(f" - {val}")
 
 
 if __name__ == "__main__":

script/scaffold/templates/device_trigger/tests/test_device_trigger.py

@@ -109,14 +109,16 @@ async def test_if_fires_on_state_change(
     hass.states.async_set("NEW_DOMAIN.entity", STATE_ON)
     await hass.async_block_till_done()
     assert len(service_calls) == 1
-    assert service_calls[0].data[
-        "some"
-    ] == "turn_on - device - {} - off - on - None - 0".format("NEW_DOMAIN.entity")
+    assert (
+        service_calls[0].data["some"]
+        == "turn_on - device - NEW_DOMAIN.entity - off - on - None - 0"
+    )
 
     # Fake that the entity is turning off.
     hass.states.async_set("NEW_DOMAIN.entity", STATE_OFF)
     await hass.async_block_till_done()
     assert len(service_calls) == 2
-    assert service_calls[1].data[
-        "some"
-    ] == "turn_off - device - {} - on - off - None - 0".format("NEW_DOMAIN.entity")
+    assert (
+        service_calls[1].data["some"]
+        == "turn_off - device - NEW_DOMAIN.entity - on - off - None - 0"
+    )