diff options
Diffstat (limited to 'scripts/qapi/main.py')
| -rw-r--r-- | scripts/qapi/main.py | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/scripts/qapi/main.py b/scripts/qapi/main.py index 5b4679a..0e2a6ae 100644 --- a/scripts/qapi/main.py +++ b/scripts/qapi/main.py @@ -31,34 +31,28 @@ def create_backend(path: str) -> QAPIBackend: module_path, dot, class_name = path.rpartition('.') if not dot: - print("argument of -B must be of the form MODULE.CLASS", - file=sys.stderr) - sys.exit(1) + raise QAPIError("argument of -B must be of the form MODULE.CLASS") try: mod = import_module(module_path) except Exception as ex: - print(f"unable to import '{module_path}': {ex}", file=sys.stderr) - sys.exit(1) + raise QAPIError(f"unable to import '{module_path}': {ex}") from ex try: klass = getattr(mod, class_name) - except AttributeError: - print(f"module '{module_path}' has no class '{class_name}'", - file=sys.stderr) - sys.exit(1) + except AttributeError as ex: + raise QAPIError( + f"module '{module_path}' has no class '{class_name}'") from ex try: backend = klass() except Exception as ex: - print(f"backend '{path}' cannot be instantiated: {ex}", - file=sys.stderr) - sys.exit(1) + raise QAPIError( + f"backend '{path}' cannot be instantiated: {ex}") from ex if not isinstance(backend, QAPIBackend): - print(f"backend '{path}' must be an instance of QAPIBackend", - file=sys.stderr) - sys.exit(1) + raise QAPIError( + f"backend '{path}' must be an instance of QAPIBackend") return backend |