Apply ruff unsafe fixes

Author: oschwald

geoip2/database.py

@@ -252,13 +252,15 @@ def isp(self, ip_address: IPAddress) -> ISP:
     def _get(self, database_type: str, ip_address: IPAddress) -> Any:
         if database_type not in self._db_type:
             caller = inspect.stack()[2][3]
+            msg = f"The {caller} method cannot be used with the {self._db_type} database"
             raise TypeError(
-                f"The {caller} method cannot be used with the {self._db_type} database",
+                msg,
             )
         (record, prefix_len) = self._db_reader.get_with_prefix_len(ip_address)
         if record is None:
+            msg = f"The address {ip_address} is not in the database."
             raise geoip2.errors.AddressNotFoundError(
-                f"The address {ip_address} is not in the database.",
+                msg,
                 str(ip_address),
                 prefix_len,
             )

tests/models_test.py

@@ -395,7 +395,7 @@ def test_city_full(self) -> None:
             r"^geoip2.models.City\(\[.*en.*\], .*geoname_id.*\)",
         )
 
-        self.assertFalse(model == True, "__eq__ does not blow up on weird input")
+        self.assertFalse(model is True, "__eq__ does not blow up on weird input")
 
     def test_unknown_keys(self) -> None:
         model = geoip2.models.City(