What I find baffling is that almost every program I'm interested in as a creative power user has a Python API for scripting, from type and graphic design to 3D

What I find baffling is that almost every program I'm interested in as a creative power user has a Python API for scripting, from type and graphic design to 3D modeling, rendering and music making. I'm a bit into web design/frontend as well, and was thinking about either learning JS and Node more deeply, or add some other "backend language" like PHP or Ruby, and learn their frameworks like Laravel or Rails. Should I pick Python, Django or Flask instead to cross the gap to my creative hobbies?