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

ccxt-idax-adapter
4.3.27

This version was deleted from PyPI around 2024-05-20. Installing fails with:
$ pip3 install ccxt-idax-adapter==4.3.27 ERROR: Could not find a version that satisfies the requirement ccxt-idax-adapter==4.3.27
View other deleted versions of ccxt-idax-adapter

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/2024-05-19/ \ ccxt-idax-adapter==4.3.27
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Or, download files manually

And install manually via pip:
ccxt_idax_adapter-4.3.27-py2.py3-none-any.whl (4.5MB)
ccxt-idax-adapter-4.3.27.tar.gz (4.2MB)