I am trying to install an Add-on package from GitHub that contains prototype widgets for Orange Data Mining. I am trying to install it from the GitHub page found here.

I am using the following Terminal code to install this:

git clone http://github.com/biolab/orange3-prototypes.git

Everything then appears to install correctly and the download shows 100%. Then, however, it throws an error and says:

Orange requires Python >= 3.4

I am using Mac OS. Clearly, it is suggesting that I need to use a different version of python to install, however, I already updated my pip install. Any insight into how I can fix this?


1 Answer 1


The error message shows exactly what you need to do:

Orange requires Python>=3.4

You have to specify a Python>=3.4 version (with orange3 itself installed) while installing orange3-prototypes.

I'm not a Mac user, however, in Windows, Orange3 installer will automatically install a Python 3.4 if there's no compatible Python available.

  • 5
    $\begingroup$ Use pip3 instead of pip. $\endgroup$
    – K3---rnc
    Feb 28, 2017 at 21:49

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