Project Home is on Github, downloads page are on Sourceforge, Discussion group is on Google Groups, md5 and sha1 there
Recent Releases
Release 2015-06 of August 9th, 2015
Highlights: mingwpy, Qt5.5, clother integration with pip, pyaudio, xray, bokeh
- WinPython 3.4.3.5 Changelog and Downloads, or alternative Downloads
- WinPython 3.4.3.5Qt5 Changelog and Downloads
- WinPython 2.7.10.2 Changelog and Downloads
Release 2015-05 of June 28th, 2015
Highlights: Ipython 3.2, Spyder 2.3.5, pandas 0.16.2, Keras, Dask, Odo
- WinPython 3.4.3.4 Changelog and Downloads, or alternative Downloads
- WinPython 3.3.5.9 Changelog and Downloads, or alternative Downloads
- WinPython 2.7.10.1 Changelog and Downloads, or alternative Downloads
Release 2015-04 of May 12th, 2015
Highlights: Ipython 3.1, pandas 0.16.1, scikit-learn 0.16.1, jedi, pyqtgraph, Flask, Theano, better integration with pip
- WinPython 3.4.3.3 Changelog and Downloads
- WinPython 3.3.5.8 Changelog and Downloads
- WinPython 2.7.9.5 Changelog and Downloads

Overview
WinPython is a free open-source portable distribution of the Python programming language for Windows Vista/7/8 and scientific and educational usage.

It is a full-featured (see our Wiki) Python-based scientific environment:
- Designed for scientists, data-scientists, and education (thanks to NumPy, SciPy, Sympy, Matplotlib, Pandas, pyqtgraph, etc.):
- interactive data processing and visualization using Python with Spyder and IPython, or IDLE
- out-of-the-box working Compiler (Mingw64), fully integrated Cython and Numba! See included example
- connectors (cffi, odbc, rpy2, scilab2py, requests, ...) and dedicated Flavors (R, Julia, ...) for advanced users
- Portable:
- Runs out of the box on any Windows with 2GB Ram (IPython needs Windows>XP, and IPython Notebook a recent browser)
- The WinPython folder can be moved to any location (local, network, USB drive) with most of the application settings
- Flexible:
- You can install as many WinPython distributions as you want on the same machine: each one is isolated and self-consistent
- These installations can be of different versions of Python (2.7 or 3.4+) or different architectures (32bit or 64bit)
- Customizable:
- The integrated WinPython Package Manager (WPPM) helps installing, uninstalling or upgrading Python packages
- It's also possible to install or upgrade packages using pip from the WinPython command prompt
- A configuration file allows you to set environment variables at runtime
WinPython is something different from other Python Distributions (see historic motivation and concept):
- non-invasive: WinPython lives entirely in its own directory, without any OS installation
- flavors: releases with added packages are created to better fit a domain out-of-the-box
- do your own flavor: a winpython-creator kit is made available for you

Portable or not, the choice is yours!
WinPython is a portable application, so the user should not expect any integration into Windows explorer during installation. However, the WinPython Control Panel allows to "register" your distribution to Windows (see screenshot below).

Registering your WinPython installation will:
- associate file extensions .py, .pyc and .pyo to Python interpreter
- register Python icons in Windows explorer
- add context menu entries Edit with IDLE and Edit with Spyder for .py files
- register WinPython as a standard Python distribution (standard Python Windows installers will see WinPython in Windows registry)

