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

dtale
1.6.1

This version was deleted from PyPI around 2025-07-31. Installing fails with:
$ pip3 install dtale==1.6.1 ERROR: Could not find a version that satisfies the requirement dtale==1.6.1
View other deleted versions of dtale

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/2025-07-30/ \ dtale==1.6.1
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:
dtale-1.6.1-py2.7.egg (11.3MB)
dtale-1.6.1-py2.py3-none-any.whl (11.3MB)
dtale-1.6.1-py3.6.egg (11.3MB)
dtale-1.6.1.tar.gz (11.2MB)