pyupgrade

mesonbuild/interpreter/interpreterobjects.py

@@ -132,7 +132,7 @@ class FeatureOptionHolder(ObjectHolder[coredata.UserFeatureOption]):
 
         assert isinstance(error_message, str)
         if self.value == 'enabled':
-            prefix = 'Feature {} cannot be enabled'.format(self.held_object.name)
+            prefix = f'Feature {self.held_object.name} cannot be enabled'
             prefix = prefix + ': ' if error_message else ''
             raise InterpreterException(prefix + error_message)
         return self.as_disabled()

run_project_tests.py

@@ -1106,7 +1106,7 @@ def detect_tests_to_run(only: T.Dict[str, T.List[str]], use_tmp: bool) -> T.List
 
     if only:
         for key in only.keys():
-            assert key in categories, 'key `{}` is not a recognized category'.format(key)
+            assert key in categories, f'key `{key}` is not a recognized category'
         all_tests = [t for t in all_tests if t.category in only.keys()]
 
     gathered_tests = [(t.category, gather_tests(Path('test cases', t.subdir), t.stdout_mandatory, only[t.category]), t.skip) for t in all_tests]