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👋 Matti Picus

I am a developer at Quansight Labs. I am a core maintainer of Numpy and PyPy. and through that work have contributed to many other projects. In addition to contributing to python performance, I love teaching and helping new people learn how to use python and how to make it fast.

Ask me about Open Source, getting involved in NumPy development, or when to use PyPy in the real world.


  1. Calling C from Python

    Jupyter Notebook 43 12

Contribution activity

October 2021

Created 4 repositories

Created a pull request in pypa/virtualenv that received 36 comments

Support PyPy 3.8

Thanks for contributing, make sure you address all the checklists (for details on how see development documentation)! ran the linter to address s…

+17 −3 36 comments
Opened 40 other pull requests in 21 repositories
ray-project/ray 1 open 4 merged
mattip/vmprof-python 1 open 3 closed
conda-forge/pypy3.6-feedstock 2 open 1 merged
pypy/ 3 merged
numpy/numpy 3 merged
pytorch/vision 2 merged
pytorch/text 2 merged
pytorch/ 2 merged
pypa/virtualenv 2 merged
pypa/packaging 1 merged 1 open
multi-build/docker-images 1 merged 1 closed
pypy/binary-testing 1 merged
pytorch/audio 1 merged
pytorch/pytorch 1 closed
mattip/psutil 1 open
pypy/pypy-manylinux-demo 1 open
mattip/pypy3.6-feedstock 1 merged
vmprof/vmprof-python 1 open
mattip/rich 1 open
willmcgugan/rich 1 closed
MacPython/openblas-libs 1 merged
Reviewed 29 pull requests in 13 repositories
numpy/numpy 8 pull requests
ray-project/ray 8 pull requests
pypa/packaging 2 pull requests
pypa/virtualenv 2 pull requests
pypy/binary-testing 1 pull request
conda-forge/pypy3.6-feedstock 1 pull request
python/mypy 1 pull request
MacPython/scipy-wheels 1 pull request
multi-build/multibuild 1 pull request
conda-forge/pyyaml-feedstock 1 pull request
python-poetry/poetry 1 pull request
multi-build/docker-images 1 pull request
Quansight-Labs/quansight-labs-site 1 pull request

Created an issue in ray-project/ray that received 8 comments

[Bug] building locally on windows does not set std=c++17

Search before asking I searched the issues and found no similar issues. Ray Component Ray Core What happened + What you expected to happen I bui…

2 tasks done

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