Filipe Laíns <la...@riseup.net> added the comment:
I opened up a new PR that should fix this properly. The root issue was that
PathFinder was not setting the loader attribute for namespace packages in the
spec, which it should. After fixing that, _find_module just needed to be
updated to deal with NamespaceLoader.
```
$ tree namespace
namespace/
└── a.py
0 directories, 1 file
$ cat test-bpo-40350.py
import namespace.a
```
```
$ ./python
Python 3.11.0a1+ (heads/main:9e05da6224, Oct 23 2021, 20:36:14) [GCC 11.1.0] on
linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import modulefinder
>>> modulefinder.ModuleFinder('test-bpo-40350.py')
<modulefinder.ModuleFinder object at 0x7f66f7647480>
>>> f = modulefinder.ModuleFinder('test-bpo-40350.py')
>>> f.
KeyboardInterrupt
>>> m = modulefinder.ModuleFinder()
>>> f = modulefinder.ModuleFinder()
>>> f.run_script('test-bpo-40350.py')
>>> f.modules.items()
dict_items([('__main__', Module('__main__', 'test-bpo-40350.py')),
('namespace', Module('namespace',
_NamespacePath(['/home/anubis/git/cpython/namespace'])))])
```
Previously:
```
$ python
Python 3.9.7 (default, Oct 10 2021, 15:13:22)
[GCC 11.1.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import modulefinder
>>> f = modulefinder.ModuleFinder()
>>> f.run_script('test-bpo-40350.py')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.9/modulefinder.py", line 161, in run_script
self.load_module('__main__', fp, pathname, stuff)
File "/usr/lib/python3.9/modulefinder.py", line 357, in load_module
self.scan_code(co, m)
File "/usr/lib/python3.9/modulefinder.py", line 430, in scan_code
self._safe_import_hook(name, m, fromlist, level=0)
File "/usr/lib/python3.9/modulefinder.py", line 375, in _safe_import_hook
self.import_hook(name, caller, level=level)
File "/usr/lib/python3.9/modulefinder.py", line 173, in import_hook
q, tail = self.find_head_package(parent, name)
File "/usr/lib/python3.9/modulefinder.py", line 229, in find_head_package
q = self.import_module(head, qname, parent)
File "/usr/lib/python3.9/modulefinder.py", line 316, in import_module
fp, pathname, stuff = self.find_module(partname,
File "/usr/lib/python3.9/modulefinder.py", line 508, in find_module
return _find_module(name, path)
File "/usr/lib/python3.9/modulefinder.py", line 77, in _find_module
if spec.loader.is_package(name):
AttributeError: 'NoneType' object has no attribute 'is_package'
```
----------
_______________________________________
Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue40350>
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