You can use not only version 3.6. From CudaText's Addon Manager, install appropriate package, e.g. "Windows_Python37_64bit", and restart the program.

Python engine requires Visual C++ Redistributable for Visual Studio 2015 (32-bit or 64-bit, same as CudaText). Download it from Microsoft site.

Linux/*BSD/Solaris version uses Python library from OS. Install Python 3.x (usually already installed). Instruction, if Python library was not automatically used:

• Search for "libpython3.so"

Or use the terminal command:

• Set option "pyliblinux" ("pylibfreebsd", "pylib__solaris") in the "user.json" config, to one of the found filenames. Write option to the "user.json" or course, not "default.json".

On macOS you must install Python 3, from official site python.org. Versions 3.6…3.9 are ok. CudaText will detect this Python. CudaText has option "pylib__mac" with such default value (actual version number is auto-detected):

If you use "virtualenv" from "conda" with isolated Python, CudaText cannot detect it, so you need to write to the user.json option "pylib__mac" by hands. Example: