New submission from Anthony Sottile <asottile@umich.edu>: For instance: # `a` is an empty directory, a PEP 420 namespace package
import importlib.util importlib.util.find_spec('a') ModuleSpec(name='a', loader=None, origin='namespace', submodule_search_locations=_NamespacePath(['/tmp/x/a']))
https://docs.python.org/3/library/importlib.html#importlib.machinery.ModuleS...
... Normally “origin” should be set, but it may be None (the default) which indicates it is unspecified (e.g. for namespace packages).
above the `origin` is `'namespace'` https://docs.python.org/3/library/importlib.html#importlib.machinery.ModuleS...
List of strings for where to find submodules, if a package (None otherwise).
However the `_NamespacePath` object above is not indexable:
x = importlib.util.find_spec('a').submodule_search_locations x[0] Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: '_NamespacePath' object does not support indexing
I can work around however with:
next(iter(x)) '/tmp/x/a'
====================== so I guess a few things can/should come out of this: - Document the `'namespace'` origin - Document that `submodule_search_paths` is a Sized[str] instead - Add `__getitem__` to `_NamespacePath` such that it implements the full `Sized` protocol ---------- assignee: docs@python components: Documentation messages: 334484 nosy: Anthony Sottile, docs@python priority: normal severity: normal status: open title: importlib.util docs for namespace packages innaccurate versions: Python 3.7, Python 3.8 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue35843> _______________________________________