I have generated a new release that attempts to provide better detection of Python3 on Linux systems. Even if Ubuntu 19.10 includes a version of Python 2.7 that supports PyUnicode_... functions, it will not be a LTS. It is unfortunate that Ubuntu 16.04 and 18.04 are unable to upgrade to a recent release of 2.7. Perhaps a future release will include a copy of Python just like FSLeyes or Surfice for Windows. This will make the file size considerably larger but it will ensure the scripting works on all systems.