conda-pypi-test

A simple development conda channel for testing repodata for conda-pypi.

Warning

This is for testing new repodata formats and it is not for production use! If you are looking for production index generation use conda-index.

Quickstart for Using the Channel with conda

Install the conda-pypi plugin

This will install the conda-pypi plugin and its dependencies:

conda install -n base 'conda-pypi>=0.5.0[build_number=">=2"]' 'conda-rattler-solver<0.0.6'

Configure the solver

The rattler solver is required for wheel installation:

conda config --set solver rattler

Add the conda-pypi-test channel to your .condarc

This temporary test channel indexes approximately 500K pure Python wheels, latest version only:

conda config --append channels https://github.com/conda-incubator/conda-pypi-test/releases/download

Uninstall

To remove the channel and revert solver settings:

# Remove the test channel
conda config --remove channels https://github.com/conda-incubator/conda-pypi-test/releases/download

# Revert to your previous solver
conda config --remove-key solver

# Optionally remove the plugins
conda remove -n base conda-pypi conda-rattler-solver

# Remove test environments
conda env remove -n <your-test-env>

Development Setup

conda env create --file environment.yml
conda activate conda-pypi-test

Generating the Test Channel

Discover packages from PyPI

# 1. Get all package names (~739k, one request)
python discover.py --names-only --output names.txt

# 2. Add latest version, keep only packages with wheels (one request per name)
python discover.py --from-names names.txt --output packages.txt

# 3. Generate repodata
python generate.py

Step 2 can take a long time for the full list. Use --workers (default 50) and --delay to tune; if you hit rate limits (429), try --workers 20 --delay 0.1. Use --any-wheel to allow compiled wheels, not only pure Python.

Manual package list

Edit packages.txt (format: name==version per line), then:

python generate.py

This creates noarch/repodata.json and .zst. Use the channel locally with conda install -c . package-name.

GitHub Releases

Pushing to the repo triggers GitHub Actions to build and upload repodata. Use the channel with:

conda install -c https://github.com/conda-incubator/conda-pypi-test/releases/download/noarch package-name