You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

bigdl-dllib-spark3
2.4.0b20230816

This version was deleted from PyPI around 2023-09-26. Installing fails with:
$ pip3 install bigdl-dllib-spark3==2.4.0b20230816 ERROR: Could not find a version that satisfies the requirement bigdl-dllib-spark3==2.4.0b20230816
View other deleted versions of bigdl-dllib-spark3

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2023-09-25/ \ bigdl-dllib-spark3==2.4.0b20230816
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Or, download files manually

And install manually via pip:
bigdl_dllib_spark3-2.4.0b20230816-py3-none-macosx_10_11_x86_64.whl (60.9MB)
bigdl_dllib_spark3-2.4.0b20230816-py3-none-manylinux1_x86_64.whl (61.0MB)
bigdl-dllib-spark3-2.4.0b20230816.tar.gz (60.9MB)