GLFW library not found

Я работаю на операционной системе MacOs. Пытаюсь запустить код на python. Я использую билиотеку p5. Она установлена:

(base) bash-3.2$ pip install p5
Requirement already satisfied: p5 in /anaconda3/lib/python3.7/site-packages (0.6.0)
Requirement already satisfied: vispy in /anaconda3/lib/python3.7/site-packages (from p5) (0.6.4)
Requirement already satisfied: triangle in /anaconda3/lib/python3.7/site-packages (from p5) (20200424)
Requirement already satisfied: numpy in /anaconda3/lib/python3.7/site-packages (from p5) (1.16.2)
Requirement already satisfied: Pillow in /anaconda3/lib/python3.7/site-packages (from p5) (5.4.1)
Requirement already satisfied: glfw in /anaconda3/lib/python3.7/site-packages (from p5) (1.12.0)
Requirement already satisfied: freetype-py in /anaconda3/lib/python3.7/site-packages (from vispy->p5) (2.2.0)

Запускаю код:

RuntimeError: Could not import backend "Glfw":
GLFW library not found

Если я устанавливаю отдельно glfw, то:

pip install glfw
Requirement already satisfied: glfw in /anaconda3/lib/python3.7/site-packages (1.12.0)

Почему не работает, и как сделать чтобы работало?