amoghrajesh opened a new pull request, #44469:
URL: https://github.com/apache/airflow/pull/44469
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@eladkal recently ran into an issue:
```
Downloading constraints for all Airflow versions for Python 3.9
Downloading
https://raw.githubusercontent.com/apache/airflow/constraints-2.0.0/constraints-3.9.txt
to
/Users/eladkal/PycharmProjects/airflow/.build/constraints/constraints-2.0.0-python-3.9.txt
https://raw.githubusercontent.com/apache/airflow/constraints-2.0.0/constraints-3.9.txt
could not be downloaded. Status code 403
Could not download constraints for Airflow 2.0.0 and Python 3.9
Downloading
https://raw.githubusercontent.com/apache/airflow/constraints-2.0.1/constraints-3.9.txt
to
/Users/eladkal/PycharmProjects/airflow/.build/constraints/constraints-2.0.1-python-3.9.txt
https://raw.githubusercontent.com/apache/airflow/constraints-2.0.1/constraints-3.9.txt
could not be downloaded. Status code 403
Could not download constraints for Airflow 2.0.1 and Python 3.9
Downloading
https://raw.githubusercontent.com/apache/airflow/constraints-2.0.2/constraints-3.9.txt
to
/Users/eladkal/PycharmProjects/airflow/.build/constraints/constraints-2.0.2-python-3.9.txt
https://raw.githubusercontent.com/apache/airflow/constraints-2.0.2/constraints-3.9.txt
could not be downloaded. Status code 403
Could not download constraints for Airflow 2.0.2 and Python 3.9
Downloading
https://raw.githubusercontent.com/apache/airflow/constraints-2.1.0/constraints-3.9.txt
to
/Users/eladkal/PycharmProjects/airflow/.build/constraints/constraints-2.1.0-python-3.9.txt
https://raw.githubusercontent.com/apache/airflow/constraints-2.1.0/constraints-3.9.txt
could not be downloaded. Status code 403
Could not download constraints for Airflow 2.1.0 and Python 3.9
....
```
Then
```
multiprocessing.pool.RemoteTraceback:
"""
Traceback (most recent call last):
File
"/Users/eladkal/.local/share/rtx/installs/python/3.11.6/lib/python3.11/multiprocessing/pool.py",
line 125, in worker
result = (True, func(*args, **kwds))
^^^^^^^^^^^^^^^^^^^
File
"/Users/eladkal/.local/share/rtx/installs/python/3.11.6/lib/python3.11/multiprocessing/pool.py",
line 48, in mapstar
return list(map(*args))
^^^^^^^^^^^^^^^^
File
"/Users/eladkal/PycharmProjects/airflow/dev/breeze/src/airflow_breeze/utils/provider_dependencies.py",
line 83, in generate_providers_metadata_for_package
if constraints[airflow_version].get(package_name) == provider_version:
~~~~~~~~~~~^^^^^^^^^^^^^^^^^
KeyError: '2.0.0'
"""
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/Users/eladkal/.local/bin/breeze", line 8, in <module>
sys.exit(main())
^^^^^^
File
"/Users/eladkal/.local/share/uv/tools/apache-airflow-breeze/lib/python3.11/site-packages/rich_click/rich_command.py",
line 367, in __call__
return super().__call__(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/Users/eladkal/.local/share/uv/tools/apache-airflow-breeze/lib/python3.11/site-packages/click/core.py",
line 1157, in __call__
return self.main(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/Users/eladkal/.local/share/uv/tools/apache-airflow-breeze/lib/python3.11/site-packages/rich_click/rich_command.py",
line 152, in main
rv = self.invoke(ctx)
^^^^^^^^^^^^^^^^
File
"/Users/eladkal/.local/share/uv/tools/apache-airflow-breeze/lib/python3.11/site-packages/click/core.py",
line 1688, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/Users/eladkal/.local/share/uv/tools/apache-airflow-breeze/lib/python3.11/site-packages/click/core.py",
line 1688, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/Users/eladkal/.local/share/uv/tools/apache-airflow-breeze/lib/python3.11/site-packages/click/core.py",
line 1434, in invoke
return ctx.invoke(self.callback, **ctx.params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/Users/eladkal/.local/share/uv/tools/apache-airflow-breeze/lib/python3.11/site-packages/click/core.py",
line 783, in invoke
return __callback(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/Users/eladkal/PycharmProjects/airflow/dev/breeze/src/airflow_breeze/commands/release_management_commands.py",
line 2614, in generate_providers_metadata
results = pool.map(
^^^^^^^^^
File
"/Users/eladkal/.local/share/rtx/installs/python/3.11.6/lib/python3.11/multiprocessing/pool.py",
line 367, in map
return self._map_async(func, iterable, mapstar, chunksize).get()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/Users/eladkal/.local/share/rtx/installs/python/3.11.6/lib/python3.11/multiprocessing/pool.py",
line 774, in get
raise self._value
KeyError: '2.0.0'
```
On debugging we realised that its because of VPN! This revealed that we do
not handle 403 well. This PR fixes that
<!-- Please keep an empty line above the dashes. -->
---
**^ Add meaningful description above**
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