Installing Add-ons Works Again

Dear Orange users,

Some of you might have an issue installing add-ons with the following issue popping up:

xmlrpc.client.Fault: <Fault -32601: 'server error; requested method not found'>

This is the result of the migration to a new infrastructure at PyPi, which provides the installation of add-ons. Our team has rallied to adjust the add-on installer so it works with the new and improved service.

In order to make the add-on installer work (again), please download the latest version of Orange (3.13.0).

We apologize for any inconvenience and wish you a fruitful data analysis in the future.

Yours truly,

Orange team

  • Mane Ko

    Thanks a lot for the info. Updated it (from 3.5 to 3.13) and it seems to work perfectly (MacOS 10.9.5 with PyQt5==5.8.2 due to compatibility issues)

  • Michael Wakileh

    Is there a way to install add-ons offline?
    Our institutions firewalls seem to hinder add-on installation on some computers. There is no issue with installing orange offline on those computers.


    • Ajda Pretnar

      There are two options. You can set the proxy under Preferences – Network. This usually solves the issue.
      Alternatively, you can download each add-on as zip from its corresponding Github page, then drag and drop the zip to add-on dialogue. However, this would still require access to the internet, as each add-on requires specific packages available online.

      • Michael Wakileh

        Thanks! I will try this. (For some reason the download and installation via miniconda installer works without issue, only add-on installation is problematic)

      • Bernardo F. Nunes

        Hi, Can I do this drag and drop to install Recommendation too? I am having problems to install this add-on in Windows PCs using the Command prompt. No problems for MacBooks using the terminal.

        • Ajda Pretnar

          In theory, yes. However, Recommendation is not a supported add-on and we can’t guarantee it will work. I am having problem with mine on MacOS, but if it works for you, then great!

          • Bernardo F. Nunes

            It works, thanks Ajda! I can install it by dragging and dropping and use the Baseline widgets (not the BRISMF or SVD++), but I knew this before. 🙂

  • Amine

    When using Orange, can we access to the code?


    • Ajda Pretnar

      If you mean if you can export Python code, the answer is no. If you mean if you can use Orange as a Python library, the answer is yes. You can see documentation on our website.