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author | Miro Hrončok <miro@hroncok.cz> | 2021-11-23 15:38:02 (GMT) |
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committer | GitHub <noreply@github.com> | 2021-11-23 15:38:02 (GMT) |
commit | ae1965ccb4b1fad63fab40fe8805d1b8247668d3 (patch) | |
tree | 71db664a46a2804662783d8685a8647f61d14dcf /PCbuild/find_python.bat | |
parent | 8ed1495ad900dd815ff8fb97926da5312aaa23f9 (diff) | |
download | cpython-ae1965ccb4b1fad63fab40fe8805d1b8247668d3.zip cpython-ae1965ccb4b1fad63fab40fe8805d1b8247668d3.tar.gz cpython-ae1965ccb4b1fad63fab40fe8805d1b8247668d3.tar.bz2 |
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.
Diffstat (limited to 'PCbuild/find_python.bat')
0 files changed, 0 insertions, 0 deletions