Short answer: Python is used outside of Academia, Forth is used inside Academia.
Long answer: Courses and tools grouped around Python programming, OpenAI and “everybody can program” motto has a non-professional direction. That means, the target audience are beginners, amateurs, students and people outside of Academia. Python and OpenAI are used to increase the number of people who have a simple understanding of AI programming. It is a mass culture, which is not focused on implementing complex system but simplify the learning process.
If OpenAI isn't used in Academia, what is the alternative for longterm computer scientists who have already an understanding about Reinforcement learning and want to build reliable systems for professional needs? The answer is Forth. The Forth programming language is the most professional setup which is available in Academia. It is used by academic experts to implement realtime applications. Two examples are given in the following paper:
- Zhu, Qiuming, et al. "Synergetic Human-System Integration for Reliable and Efficient C2 Operations."
- Ear, Harold. A Biologically Inspired Four-Legged Walking Robot (Robo-Dog). Diss. Murdoch University, 2017