Installation¶

Install with pip¶

Install lightning inside a virtual env or conda environment with pip

python -m pip install lightning

Install with Conda¶

If you don’t have conda installed, follow the Conda Installation Guide. Lightning can be installed with conda using the following command:

conda install lightning -c conda-forge

You can also use Conda Environments:

conda activate my_env
conda install lightning -c conda-forge

In case you face difficulty with pulling the GRPC package, please follow this thread

Build from Source¶

Install nightly from the source. Note that it contains all the bug fixes and newly released features that are not published yet. This is the bleeding edge, so use it at your own discretion.

pip install https://github.com/Lightning-AI/lightning/archive/refs/heads/master.zip -U

Install future patch releases from the source. Note that the patch release contains only the bug fixes for the recent major release.

pip install https://github.com/Lightning-AI/lightning/archive/refs/heads/release/stable.zip -U

Custom PyTorch Version¶

To use any PyTorch version visit the PyTorch Installation Page. You can find the list of supported PyTorch versions in our compatibility matrix.

Optimized for ML workflows (Lightning Apps)¶

If you are deploying workflows built with Lightning in production and require fewer dependencies, try using the optimized lightning[apps] package:

pip install lightning-app