Anthony Sottile <asottile@umich.edu> added the comment: Hmmm, it appears this was changed in python3.7 to have `None` for the origin instead of `'namespace'` -- however the `submodule_search_locations` is still not indexable:
importlib.util.find_spec('a') ModuleSpec(name='a', loader=None, submodule_search_locations=_NamespacePath(['/tmp/x/a'])) importlib.util.find_spec('a').origin spec = importlib.util.find_spec('a') spec.submodule_search_locations _NamespacePath(['/tmp/x/a']) spec.submodule_search_locations[0] Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: '_NamespacePath' object does not support indexing
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