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

sonpy
1.9.11

This version was deleted from PyPI around 2026-06-10. Installing fails with:
$ pip3 install sonpy==1.9.11 ERROR: Could not find a version that satisfies the requirement sonpy==1.9.11
View other deleted versions of sonpy

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/2026-06-09/ \ sonpy==1.9.11
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:
sonpy-1.9.11-cp314-cp314-macosx_10_15_universal2.whl (537.9KB)
sonpy-1.9.11-cp314-cp314-manylinux_2_39_x86_64.whl (658.3KB)
sonpy-1.9.11-cp314-cp314-win_amd64.whl (301.8KB)
sonpy-1.9.11.tar.gz (292.2KB)