I am happy to announce the availability of a new version of winpysetup changes in this version: - added 3.5 and VisualStudio 2015 Community edition. Both are for post XP windows versions only. Be forewarned that VisualStudio can take a long time downloading updates it needs on a clean Windows 7, all the more reason to use winpysetup. version 1.2 dd 2015-09-27 Winpysetup ( https://bitbucket.org/ruamel/winpysetup/ ) allows setting up a clean testing environment on Windows for multiple python versions without downloading and installing MSI installers, prerequisites, yourself, all the time waiting for the last to finish in order to click a few options to start the next install. Winpysetup makes it trivial to install both 64- and 32-bit versions of the same Python version. Because tox-globinterpreter is installed as well, all these versions can be found and used on one machine. - install Windows (or clone your clean Windows Virtual Machine) - Download winpysetup.exe and start it. ( https://bitbucket.org/ruamel/winpysetup/downloads/winpysetup.exe ) - Once the program is done (now is a good time to make another snapshot if you run Windows in a VM), open a new Command Prompt (to get the change in PATH) and change to a directory without spaces in the path (e.g. C:\src). - Run: hg clone --insecure https://hg@bitbucket.org/ruamel/minimal - Change to the directory "minimal" and run tox. - Watch how tox invokes py.test succesfully against Python 2.7/3.5/3.4/3.3/2.6 and pypy (you can of course run tox immediately on your own, more interesting, code as well). Installed items include: pip (latest version even if older version is included in the installed python version), easy_install, mercurial, tox, detox, py.test and the Visual C compiler for Python 2.7 (e.g. needed for mercurial) and the other Pythons versions. Special hooks can change the behaviour of the installer. In particular: - the list of python versions to install can be easily extended/reduced - the list of default packages to install can be extended/reduced - already downloaded packages (Python, VisualStudio) can be cached. To both cache downloads, and install 32 bit versions on a 64 bit system, create a file pre_winpysetup.py next to your winpysetup.exe file before starting the latter: ---------- import sys import os import urllib2 def _download_url(self, url, path=None, base_name=None): """download a url if it is not yet in the cache """ cache = '/full/path/to/some/peristent/cache/directory/on/a/host/network drive' print 'url', url if cache and not os.path.exists(cache): cache = None if path is None: path = self._msi_dir if base_name is None: base_name = os.path.basename(url) if cache: full_name = os.path.join(cache, base_name) else: full_name = os.path.join(path, base_name) if not os.path.exists(full_name): print 'retrieving', base_name, '...' data = urllib2.urlopen(url).read() fp = open(full_name, 'wb') fp.write(data) fp.close() return full_name def pre_versions(self): self.versions = self.versions[:-1] + [ '3.5-32', '3.4-32', '3.3-32', '2.6-32', '2.7-32', ] + [self.versions[-1]] def main(verbose, installer): print 'loading winpysetup_pre' installer._download_url = _download_url installer.pre_versions = pre_versions ---------- Winpysetup has been used to setup the 2.3 environment to create the winpysetup.exe (so it will run on a clean Windows XP install). Winpysetup is used to generate the wheel files for ruamel.ordereddict and ruamel.yaml. It has been tested on: WinXP with Service Pack 2 (32 and 64 bit) Windows 7 (32 and 64 bit) Feedback (avdn@europython.eu or via bitbucket) is welcome, in particular if tested on other Windows environments to which I currently don't have access.