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About mypy

Jukka Lehtosalo began work on mypy in 2012. The project borrows heavily from Jukka's earlier work on Alore, a Python-inspired language with an optional static type system.

In addition to Python and Alore, the design of mypy has been influenced by Java, C#, Typed Racket, Boo, Dart and the work of Jeremy G. Siek and Walid Taha on gradual typing.

Mypy Team

Jukka Lehtosalo

Jukka is the primary developer of mypy. Born and raised in Finland, Jukka now works as an engineer at Dropbox in San Francisco. He works on mypy on his spare time. Mypy was created while Jukka was at the University of Cambridge Computer Laboratory in the UK as a PhD student. Before Cambridge, Jukka worked as a software engineer and later as a development manager for 9 years.

Jukka lives with his wife, two children, a cat and a dog in Berkeley, California.

Contributors

The following people have contributed to the development of mypy (in alphabetical order; this is likely incomplete):

See also the full CREDITS.

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Contact Jukka at to join the team!

Acknowledgements

The development of mypy and the research behind mypy has been supported financially by the Finnish Cultural Foundation, the Academy of Finland, Emil Aaltonen Foundation, Engineering and Physical Sciences Research Council UK, University of Cambridge Computer Laboratory and ACM.