<ul>

<li>WinPython <strong>3.4</strong>.4.1 <a href="https://github.com/winpython/winpython/blob/master/changelogs/WinPython-3.4.4.1_History.md">Changelog</a>, <a href="https://github.com/winpython/winpython/blob/master/changelogs/WinPython-3.4.4.1.md">Packages</a> and <a href="https://sourceforge.net/projects/winpython/files/WinPython_3.4/3.4.4.1/">Downloads</a>, or <a href="https://github.com/winpython/winpython/releases/tag/1.3.20160209">alternative Downloads</a></li>

<li>WinPython <strong>3.4</strong>.4.1Qt5 <a href="https://github.com/winpython/winpython/blob/master/changelogs/WinPythonQt5-3.4.4.1_History.md">Changelog</a>, <a href="https://github.com/winpython/winpython/blob/master/changelogs/WinPythonQt5-3.4.4.1.md">Packages</a> and <a href="https://sourceforge.net/projects/winpython/files/WinPython_3.4/3.4.4.1/">Downloads</a></li>

</ul>

<p>Release <a href="https://github.com/winpython/winpython/issues/190">2015-08</a> of December 12th, 2015 </p>

<p>Highlights: WinPython 3.5, Pandas 0.17.1, Scikit-learn 0.17, smaller Winpython variants (<a href="https://github.com/winpython/winpython/blob/master/changelogs/WinPythonZero-3.4.3.7.md">Zero</a> and <a href="https://github.com/winpython/winpython/blob/master/changelogs/WinPythonSlim-3.4.3.7.md">Slim</a>)</p>

<ul>

<li>WinPython <strong>3.4</strong>.3.7 <a href="https://github.com/winpython/winpython/blob/master/changelogs/WinPython-3.4.3.7_History.md">Changelog</a>, <a href="https://github.com/winpython/winpython/blob/master/changelogs/WinPython-3.4.3.7.md">Packages</a> and <a href="https://sourceforge.net/projects/winpython/files/WinPython_3.4/3.4.3.7/">Downloads</a>, or <a href="https://github.com/winpython/winpython/releases/tag/1.3.20151212">alternative Downloads</a></li>

<li>WinPython <strong>3.4</strong>.3.7Qt5 <a href="https://github.com/winpython/winpython/blob/master/changelogs/WinPythonQt5-3.4.3.7_History.md">Changelog</a>, <a href="https://github.com/winpython/winpython/blob/master/changelogs/WinPythonQt5-3.4.3.7.md">Packages</a> and <a href="https://sourceforge.net/projects/winpython/files/WinPython_3.4/3.4.3.7/">Downloads</a></li>

</ul>

<p>Release <a href="https://github.com/winpython/winpython/issues/148">2015-07</a> of October 29th, 2015 </p>

<p>Highlights: Ipython 4, Spyder 3, Matplotlib 1.5, Pandas 0.17, Qt5.5.1, closer integration with pip</p>

<div class="centered"><img style="width: 125px; height: 45px;" alt="WinPython Small Logos" src="images/small_logos.png"></div>

<h2 id="overview">Overview</h2>

<p><img style="width: 901px; height: 97px;" alt="WinPython Launcher Icons" src="images/winpython_launchers.png" /></p>

<p>It is a full-featured (see our <a href="https://github.com/winpython/winpython/wiki">Wiki</a>) Python-based scientific environment:</p>

<ul>

<li>Designed for scientists, data-scientists, and education (thanks to <a href="http://numpy.org/">NumPy</a>, <a href="https://www.scipy.org/">SciPy</a>, <a href="https://www.sympy.org/">Sympy</a>, <a href="http://www.matplotlib.org/">Matplotlib</a>, <a href="http://pandas.pydata.org/">Pandas</a>, <a href="http://www.pyqtgraph.org/">pyqtgraph</a>, etc.):

<ul>

<li>out-of-the-box working Compiler (Mingw64), <strong>fully integrated Cython and Numba!</strong> See <a href="http://nbviewer.ipython.org/github/winpython/winpython_afterdoc/blob/master/docs/Winpython_checker.ipynb">included example</a></li>

</ul></li>

<li><strong>Portable</strong>:

<ul>

<li>The WinPython folder can be moved to any location (local, network, USB drive) with most of the <a href="https://github.com/winpython/winpython/wiki/Installation#settings">application settings</a></li>

</ul>

<li><strong>Flexible</strong>:

<ul>

<li>You can install as many WinPython distributions as you want on the same machine: each one is isolated and self-consistent</li>

</ul>

<li><strong>Customizable</strong>:

<ul>

<li>The integrated WinPython Package Manager (<a href="https://github.com/winpython/winpython/wiki/WPPM">WPPM</a>) helps installing, uninstalling or upgrading Python packages </li>

<li>A configuration file allows you to set <a href="https://github.com/winpython/winpython/wiki/Environment">environment variables</a> at runtime </li>

</ul></li>

</ul>

<p>WinPython is <strong>something different</strong> from other Python Distributions (see historic <a href="https://github.com/winpython/winpython/wiki/Roadmap"> motivation and concept</a>):</p>

<ul>

<li><strong>non-invasive</strong>: WinPython lives entirely in its own directory, without any OS installation</li>

</ul>

<div class="centered"><img style="width: 125px; height: 45px;" alt="WinPython Small Logos" src="images/small_logos.png" /></div>

<li>register WinPython as a standard Python distribution (standard Python Windows installers will see WinPython in Windows registry)</li>

</ul>

That is exactly what the official Python installer would do to your machine: in other words, you can have it both ways!

</div>

<div class="centered"><img style="width: 125px; height: 45px;" alt="WinPython Small Logos" src="images/small_logos.png"></div>