Guard against double init hooks

2018-12-10 15:24:15 +01:00 · 2018-12-10 15:24:15 +01:00 · 6001640a8a
commit 6001640a8a
parent 93a36c8572
1 changed files with 2 additions and 0 deletions
--- a/qutebrowser/api/hook.py
+++ b/qutebrowser/api/hook.py
@ -33,5 +33,7 @@ class init:  # noqa: N801,N806 pylint: disable=invalid-name
    def __call__(self, func: typing.Callable) -> typing.Callable:
        module = importlib.import_module(func.__module__)
        info = loader.add_module_info(module)
+        if info.init_hook is not None:
+            raise ValueError("init hook is already registered!")
        info.init_hook = func
        return func