These are the instructions if you just want to follow the latest NumPy source, but you don’t need to do any development for now. If you do want to contribute a patch (excellent!) or do more extensive NumPy development, see Development workflow.

The steps are:

  • Install git
  • get local copy of the git repository from Github
  • update local copy from time to time

Get the local copy of the code

From the command line:

git clone git://github.com/numpy/numpy.git

You now have a copy of the code tree in the new numpy directory. If this doesn’t work you can try the alternative read-only url:

git clone https://github.com/numpy/numpy.git

Updating the code

From time to time you may want to pull down the latest code. Do this with:

cd numpy
git fetch
git merge --ff-only

The tree in numpy will now have the latest changes from the initial repository.

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Licensed under the 3-clause BSD License.
https://numpy.org/doc/1.19/dev/gitwash/following_latest.html