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

protobuf-to-pydantic
0.2.1.0a14

This version was deleted from PyPI around 2023-11-07. Installing fails with:
$ pip3 install protobuf-to-pydantic==0.2.1.0a14 ERROR: Could not find a version that satisfies the requirement protobuf-to-pydantic==0.2.1.0a14
View other deleted versions of protobuf-to-pydantic

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/2023-11-06/ \ protobuf-to-pydantic==0.2.1.0a14
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
protobuf_to_pydantic-0.2.1.0a14-py3-none-any.whl (138.1KB)
protobuf_to_pydantic-0.2.1.0a14.tar.gz (142.6KB)