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$title mypy - About$
$keywords about mypy, mypy information$
$description Information about mypy: background, history and development team.$

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<h1 class="first">About mypy</h1>

Jukka Lehtosalo began work on mypy in 2012. The project borrows heavily from
Jukka's earlier work on
<a href="http://www.alorelang.org/">Alore</a>, a Python-inspired language
with an optional static type system.

<p>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.

<h2>Mypy Team</h2>

<h3>Jukka Lehtosalo</h3>

<p>Jukka is the lead developer of mypy. Born and raised in Finland,
Jukka works as a software engineer at Dropbox.  Jukka created mypy
while he was at the
<a href="http://www.cl.cam.ac.uk">University of Cambridge Computer
Laboratory</a> in the UK as a PhD student. Before Cambridge, Jukka worked as
a software engineer and later as a development manager for 9 years.

<p>Jukka lives with his wife, two children, a cat, and a dog in Cambridge, England.

<h3>Guido van Rossum</h3>

<p>Guido is <a href="https://python.org/~guido">Python's BDFL</a>. Born and raised
in the Netherlands, Guido works as a software engineer at Dropbox in San Francisco.

<h3>Ivan Levkivskyi</h3>

<p>Ivan is an engineer working on mypy since 2016. Born and raised in Ukraine,
spent 10 years in Switzerland working as a physicist, Ivan now works as a software
engineer at Dropbox Ireland.

<h3>Michael J. Sullivan</h3>

<p>Michael is an engineer at Dropbox in San Francisco. Born and raised
in Wisconsin, Michael joined the mypy team after completing a PhD at
Carnegie Mellon University's
<a href="http://www.cs.cmu.edu/Groups/pop/">Principles of Programming Group</a>.

<h3>Past Dropbox core team members</h3>

<p>The following people have contributed to mypy as Dropbox employees,
interns or contractors.</p>

<ul>
  <li>David Fisher</li>
  <li>Greg Price</li>
  <li>Michael Lee</li>
  <li>Naomi Seyfer</li>
  <li>Reid Barton</li>
  <li>Svyatoslav Ilinskiy</li>
</ul>

<h3>Non-Dropbox core team members</h3>

<p>The following non-Dropboxers are considered core mypy contributors.</p>

<ul>
  <li>Ethan Smith</li>
  <li>Jelle Zijlstra</li>
</ul>


<h3>Contributors</h3>

<p>See the
<a href="https://github.com/python/mypy/blob/master/CREDITS">CREDITS</a> file
in the repository for a list of contributors.</p>

<p>Send us a <a href="https://github.com/python/mypy">pull request</a>
to join the team!</p>

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<h2>Acknowledgements</h2>

<p>The development of mypy and the research behind mypy has been
supported financially
by <a href="http://www.skr.fi">the Finnish Cultural Foundation</a>,
<a href="http://www.aka.fi/en-GB/A/">the Academy of Finland</a>,
<a href="http://www.emilaaltonen.fi/eng.htm">Emil Aaltonen Foundation</a>,
<a href="http://www.epsrc.ac.uk">Engineering and Physical Sciences Research
Council UK</a>, <a href="http://www.cl.cam.ac.uk">University of Cambridge
Computer Laboratory</a>, <a href="http://www.acm.org">ACM</a>,
and <a href="https://dropbox.com">Dropbox</a>.