Last modified 8 months ago Last modified on 02/21/2015 08:56:52 PM



All downloadable binaries and checksums are mirrored here. If you wish an independent source to verify checksums from, it may also serve that purpose.

Source Code

If for some reason, you are not able to obtain the source code from the appropriate branch in the Mercurial repository, you can download it directly from here:


Unix and Linux users


The following GNU/Debian 7.2 64-bit packages (/opt is installation root) are provided by a third party and are mirrored (from

Other variants

Please use the Mercurial repository to compile your own copy of Stackless Python. The directory structure follows that of the main Python repository.

Alternatively, for the versions of Stackless which it supports, you may be able to make use of the PyPI stackless-python installer. See below for details.

Alternatively, for the versions of Stackless which it supports, you may be able to make use of the StaticPython project. StaticPython is a custom distribution of both Python and Stackless Python statically linked for 32-bit Linux, so it makes it possible to try the supported versions of either without actually installing them.

Mac OS X users

These installers replace your existing Python installation. Note that Stackless should work exactly like standard Python, if the Stackless functionality is not used.

Microsoft Windows users

If you do not wish to compile Stackless Python yourself, we provide three ways in which you can install a precompiled version. The most straightforward way is using one of the provided installers, while the less straightforward way is converting an existing Python installation into a Stackless one.



Until Feb 21th 2015 broken MSI installers for Stackless 2.7.9 were available for download. These installers used the same product UUID as the regular C-Python installer and might harm an existing C-Python 2.7 installation. The broken files are python-2.7.9150-stackless.msi (19566592 bytes, md5 8324cef195db0293223a00692fd6abc6) and python-2.7.9150.amd64-stackless.msi (20107264 bytes, md5 5f63cc791aca1037c190f7d0af9d03a9). See issue 74 for further details.

PyPI Installer


On Debian based system the pip installer needs to compile some missing modules. Therefore you need to install various development packages. See

If you are using Python 2.7.x (x>=3) on Linux amd64 or Windows you can use the PyPI stackless-python installer. It works with pip or easyinstall from distribute or setuptools. It is compatible with virtualenv. Simply run:

> pip install stackless-python


> easy_install stackless-python


Format File Size MD5 Checksum
html 6.7 Mb 6f1ea08e9bdfe0b4c11d9655d04e0b17
html stackless-python-2.7.6-docs-html.tar.bz2 4.3 Mb 6e85595b21ee1e6157e18458c4d32773
chm python322sl.chm 5.6 Mb 1800da9dd1f0f522817efde6ed9784f9
chm python279sl.chm 5.9 Mb 8ec553b89b283909ef7b375dcbdd8911

A mirror of these downloads is available on The MD5 checksums listed both here, and on the mirror, should match.

Archived Downloads

Downloads for older versions of Stackless Python can be found on the archived downloads page.