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

fivetran-connector-sdk
0.4.27.1

This version was deleted from PyPI around 2024-04-30. Installing fails with:
$ pip3 install fivetran-connector-sdk==0.4.27.1 ERROR: Could not find a version that satisfies the requirement fivetran-connector-sdk==0.4.27.1
View other deleted versions of fivetran-connector-sdk

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/2024-04-29/ \ fivetran-connector-sdk==0.4.27.1
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Or, download files manually

And install manually via pip:
fivetran_connector_sdk-0.4.27.1-py3-none-any.whl (18.8KB)
fivetran_connector_sdk-0.4.27.1.tar.gz (15.8KB)