Linux

Install pyFltk for (Ubuntu 22.04 or Debian 12) or newer:

sudo apt install python3-fltk

Install pyFltk for Arch Linux based distro

pyFltk is available in the AUR

Install pyFltk for Ubuntu 20.04 or Debian 11:

  1. Download the correct binary .deb package from Sourceforge download page according to which version of Ubuntu or Debian you are using.
  2. Install the runtime FLTK dependencies with the following commands in a terminal:
sudo apt install libfltk*1.3 python3-opengl
  1. Install the previously downloaded .deb package with the command:
sudo dpkg -i pyFltk-1.3.8_*_amd64.deb