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

klayout
0.28.17

This version was deleted from PyPI around 2024-04-02. Installing fails with:
$ pip3 install klayout==0.28.17 ERROR: Could not find a version that satisfies the requirement klayout==0.28.17
View other deleted versions of klayout

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/2024-04-01/ \ klayout==0.28.17
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:
klayout-0.28.17-cp36-cp36m-macosx_10_9_x86_64.whl (17.4MB)
klayout-0.28.17-cp36-cp36m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (21.7MB)
klayout-0.28.17-cp36-cp36m-musllinux_1_1_x86_64.whl (19.8MB)
klayout-0.28.17-cp36-cp36m-win_amd64.whl (11.7MB)
klayout-0.28.17-cp36-cp36m-win32.whl (10.1MB)
klayout-0.28.17-cp37-cp37m-macosx_10_9_x86_64.whl (17.1MB)
klayout-0.28.17-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (21.6MB)
klayout-0.28.17-cp37-cp37m-musllinux_1_1_x86_64.whl (19.7MB)
klayout-0.28.17-cp37-cp37m-win_amd64.whl (11.3MB)
klayout-0.28.17-cp37-cp37m-win32.whl (9.9MB)
klayout-0.28.17-cp38-cp38-macosx_10_9_x86_64.whl (17.2MB)
klayout-0.28.17-cp38-cp38-macosx_11_0_arm64.whl (15.3MB)
klayout-0.28.17-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (21.6MB)
klayout-0.28.17-cp38-cp38-musllinux_1_1_x86_64.whl (19.7MB)
klayout-0.28.17-cp38-cp38-win_amd64.whl (11.3MB)
klayout-0.28.17-cp38-cp38-win32.whl (9.9MB)
klayout-0.28.17-cp39-cp39-macosx_10_9_x86_64.whl (17.1MB)
klayout-0.28.17-cp39-cp39-macosx_11_0_arm64.whl (15.1MB)
klayout-0.28.17-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (21.6MB)
klayout-0.28.17-cp39-cp39-musllinux_1_1_x86_64.whl (19.7MB)
klayout-0.28.17-cp39-cp39-win_amd64.whl (11.3MB)
klayout-0.28.17-cp39-cp39-win32.whl (9.9MB)
klayout-0.28.17-cp310-cp310-macosx_10_9_x86_64.whl (17.0MB)
klayout-0.28.17-cp310-cp310-macosx_11_0_arm64.whl (15.0MB)
klayout-0.28.17-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (21.6MB)
klayout-0.28.17-cp310-cp310-musllinux_1_1_x86_64.whl (19.7MB)
klayout-0.28.17-cp310-cp310-win_amd64.whl (11.3MB)
klayout-0.28.17-cp310-cp310-win32.whl (9.9MB)
klayout-0.28.17-cp311-cp311-macosx_10_9_x86_64.whl (17.2MB)
klayout-0.28.17-cp311-cp311-macosx_11_0_arm64.whl (15.0MB)
klayout-0.28.17-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (21.6MB)
klayout-0.28.17-cp311-cp311-musllinux_1_1_x86_64.whl (19.7MB)
klayout-0.28.17-cp311-cp311-win_amd64.whl (11.3MB)
klayout-0.28.17-cp311-cp311-win32.whl (9.9MB)
klayout-0.28.17-cp312-cp312-macosx_10_9_x86_64.whl (17.2MB)
klayout-0.28.17-cp312-cp312-macosx_11_0_arm64.whl (15.0MB)
klayout-0.28.17-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (21.6MB)
klayout-0.28.17-cp312-cp312-musllinux_1_1_x86_64.whl (19.7MB)
klayout-0.28.17.tar.gz (3.4MB)