Installing PyRx
Herbert J. Bernstein, August 2015
There is a video of the PIs of the NSF IUSE project following install instructions at
https://video.rit.edu/Watch/PyRx_Install_5Feb16
and an earlier copy at
https://drive.google.com/file/d/0B7DN4k4tkEUYQVk5OVBJeG1NVVE/view?usp=sharing, but the contents of
this page should be sufficient in most cases.
Installing PyRx
There are paid versions of PyRx and free versions of PyRx. This page will discuss installation
of the free versions on Mac or Microsoft Windows. For the installation of the paid
versions, see http://pyrx.sourceforge.net/downloads.
The installation process for the free version (0.8) begins by downloading the appropriate install kit from
From http://sourceforge.net/projects/pyrx/files/0.8/
where you should see
Installing PyRx on a Mac
Download PyRx-0.8.dmg,
wait for the download to complete and then double click the dmg file. The window you should
see would be:
Double click the open cardboard box icon. That may bring up the installer, but depending on your
security settings, instead you may see:
In that case, you need to open the Security & Privacy panel in the top row of the System Preferences under the apple
menu:
which should show you
When you click on the "Open Anyway" button, you should get to see the installer, but overlaid with a
waring that "This package will run a program to determine of the software can be installed":
When you click on "Continue", the installer should finally be enabled:
You should accept all the defaults in sequence:
When you are done, you should find a copy of PyRx in your Applications folder.
Installing PyRx under Windows
Download PyRx-0.8-Setup.exe,
wait for the download to complete and then double click the exe file.
There are many different versions of Microsoft Windows in use and many different browsers, so the sequence
of screens you will see during the download and starting of the exe are likely to vary from the following:
You may be asked if you really want to save this file on your computer (you do).
You may get a progress indicator for the download.
Eventally you should be able to see that a 91 megabyte file has been downloaded.
When you double click it, you are likely to be asked if you reall want to run the installed (you do).
Then the system is likey to complain about the publisher of the software (it is OK).
Finally the installer intself should start. Click "Next".
The install should start.
When it is done, you should click "Finish".
Which should result in an icon for starting PyRx on your desktop.