uranusjr commented on a change in pull request #19867:
URL: https://github.com/apache/airflow/pull/19867#discussion_r758257939
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File path: dev/Breeze/requirements.txt
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@@ -0,0 +1,4 @@
+click
+pytest
+pytest-xdist
+rich
Review comment:
Because `python -m` adds the current working directory to `sys.path`,
while an entry point (which is a script) does not. This is one of the lesser
known Python quirk; I don’t know what the actual name is but personally call it
“interpreter mode” (which adds cwd) and “script mode” (which does not).
Pytest actually has specific documentation on this:
https://docs.pytest.org/en/6.2.x/goodpractices.html#choosing-a-test-layout-import-rules
This is why having a pip-installable package helps; we can lay out
`dev/breeze` as a Python package:
```
airflow/dev/breeze
|-- pyproject.toml
|-- setup.py # assuming we’ll use setuptools...
|-- src/
| `-- breeze/ # importable module
`-- tests/
|-- conftest.py
`-- test_breeze.py
```
And `pip install -e ./dev/breeze` + `pytest dev/breeze/tests` would work
automatically.
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