In a Python code is it possible to give a color to called functions?

I know one interesting solution, emacs-tree-sitter which is the Emacs implementation of the general parser tree-sitter used in Atom.

It's quite easy to use and work out of the box, this is how it look the function with the modus-vivendi theme:

As tree-sitter inherit from the font-lock default variables (define by the Dracula theme) for Emacs basic, stuff like the function name (in this case tools), is enough to call customize-face and then font-lock-function-name-face. BUT if you want to change more specific face colour (method,function call) those are define by tree-sitter, there is two main ways to achieve this, with the built in Emacs font customization, or setting the variables manually The first way:

• Get the function at point (where the cursor is) with face-at-point - Call customize-face with the face name (keep in mind that it may scape some characters like the dot), and change the colours clicking in Show all attributes.

• Same as the first one - Use the function face-spec-set for every face you want to change, in this case, the method call face: (face-spec-set 'tree-sitter-hl-face:method.call '((t (:inherit tree-sitter-hl-face:function.call :foreground "red"))))

In this case, I put the face in red color.

For more information, emacs-tree-sitter documentation