Commit Graph

10 Commits

Author SHA1 Message Date
Miro Hrončok ae1965ccb4
bpo-45703: Invalidate _NamespacePath cache on importlib.invalidate_ca… (GH-29384)
Consider the following directory structure:

    .
    └── PATH1
        └── namespace
            └── sub1
                └── __init__.py

And both PATH1 and PATH2 in sys path:

    $ PYTHONPATH=PATH1:PATH2 python3.11
    >>> import namespace
    >>> import namespace.sub1
    >>> namespace.__path__
    _NamespacePath(['.../PATH1/namespace'])
    >>> ...

While this interpreter still runs, PATH2/namespace/sub2 is created:

    .
    ├── PATH1
    │   └── namespace
    │       └── sub1
    │           └── __init__.py
    └── PATH2
        └── namespace
            └── sub2
                └── __init__.py

The newly created module cannot be imported:

    >>> ...
    >>> namespace.__path__
    _NamespacePath(['.../PATH1/namespace'])
    >>> import namespace.sub2
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
    ModuleNotFoundError: No module named 'namespace.sub2'

Calling importlib.invalidate_caches() now newly allows to import it:

    >>> import importlib
    >>> importlib.invalidate_caches()
    >>> namespace.__path__
    _NamespacePath(['.../PATH1/namespace'])
    >>> import namespace.sub2
    >>> namespace.__path__
    _NamespacePath(['.../PATH1/namespace', '.../PATH2/namespace'])

This was not previously possible.
2021-11-23 07:38:02 -08:00
Barry Warsaw 876fc7fcec
bpo-35673: Add a public alias for namespace package __loader__ attribute (#29049)
Rename namespace package __loader__ class to be public.

Make the old name, i.e. _NamespaceLoader, an alias for the public name, for backward compatibility.
2021-10-20 14:05:29 -07:00
Brett Cannon 1899087b21
bpo-42136: Deprecate module_repr() as found in importlib (GH-25022) 2021-03-26 11:55:07 -07:00
Brett Cannon 9cb31d6716
bpo-42137: have ModuleType.__repr__ prefer __spec__ over module_repr() (GH-24953)
This is to work towards the removal of the use of  module_repr() in Python 3.12 (documented as deprecated since 3.4).
2021-03-24 08:26:56 -07:00
Anthony Sottile ab9b31f947 bpo-35843: Implement __getitem__ for _NamespacePath (GH-11690) 2019-03-08 10:58:00 -08:00
Barry Warsaw bbbcf8693b
bpo-32303 - Consistency fixes for namespace loaders (#5481)
* Make sure ``__spec__.loader`` matches ``__loader__`` for namespace packages.
* Make sure ``__spec__.origin` matches ``__file__`` for namespace packages.

https://bugs.python.org/issue32303
https://bugs.python.org/issue32305
2018-02-02 15:15:58 -05:00
Eric Snow d65018b17c Fixes #19711: Add tests for reloading namespace packages. 2016-05-10 15:29:05 -06:00
Serhiy Storchaka e437a10d15 Issue #23277: Remove unused imports in tests. 2016-04-24 21:41:02 +03:00
Serhiy Storchaka 597d15afe4 Issue #23277: Remove unused support.run_unittest import. 2016-04-24 13:45:58 +03:00
Eric Snow c4bbd7a492 Issue #21097: Move test_namespace_pkgs into test_importlib. 2014-03-29 15:57:44 -06:00