You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1.6 KiB
1.6 KiB
Shadow Import Issue
This repo includes a reproduction of an import issue when using setuptools>=64.0.0 and Cython when installed in editable mode.
This issue occurs when importing a module from a parent module which has the same name as a sibling module.
For example:
├── shadow_import_issue
│ ├── __init__.py
│ ├── c_exts
│ │ ├── __init__.py
│ │ ├── _child.pyx
│ │ └── shadow.py
│ ├── shadow.py
│ └── sub
│ ├── __init__.py
│ ├── child.py
└── └── shadow.py
When trying to import shadow_import_issue.shadow from shadow_import_issue.c_exts._child it will import shadow_import_issue.c_exts.shadow instead.
This issue is not present when importing shadow_import_issue.shadow from shadow_import_issue.sub.child (pure-python version).
Running
git clone https://github.com/brettlangdon/shadow-import-issue.git
cd ./shadow-import-issue/
docker build -t shadow-import-issue .
docker run --rm shadow-import-issue
Expected output is to fail with:
pure-python VAR
Traceback (most recent call last):
File "/src/test.py", line 1, in <module>
import shadow_import_issue
File "/src/shadow_import_issue/__init__.py", line 5, in <module>
from .c_exts import _child # isort:skip
File "shadow_import_issue/c_exts/_child.pyx", line 1, in init shadow_import_issue.c_exts._child
from shadow_import_issue.shadow import VAR
ImportError: cannot import name VAR
The module and variable will import fine with Python, but will fail the import from the Cython module.