Taragolis opened a new pull request, #33794:
URL: https://github.com/apache/airflow/pull/33794
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During the removing support of Python 3.7 #30963, we incidentally create
this block
```python
# Literal in 3.8 is limited to one single argument, not e.g. "Literal[1, 2]".
if sys.version_info >= (3, 9):
from typing import Literal
else:
from typing import Literal
```
This PR fix by use everywhere `from typing_extension import Literal` instead
of
- `from typing import Literal`
- `from airflow.typing_compat import Literal`
In additional `Literal` has [other known
bugs](https://typing-extensions.readthedocs.io/en/latest/#Literal) which
finally resolved in Python 3.10.1+, so personally I thought that better just
use `from typing_extension import Literal` rather than out
`airflow.typing_compat` resolver
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