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Diffstat (limited to 'python/downloadprovider.py')
| -rw-r--r-- | python/downloadprovider.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/python/downloadprovider.py b/python/downloadprovider.py index 3104b08d..bcc0bf16 100644 --- a/python/downloadprovider.py +++ b/python/downloadprovider.py @@ -284,6 +284,7 @@ class DownloadProvider(metaclass=_DownloadProviderMetaclass): def _create_instance(self, ctxt): try: + assert self.__class__.instance_class is not None, "instance_class is None" result = self.__class__.instance_class(self) if result is None: return None |