I installed Rasa with pip, ran py -m rasa and this error popped up:
C:\Users\user\AppData\Local\Programs\Python\Python38-32\python.exe: Error while finding module specification for 'rasa.__main__' (ImportError: cannot import name 'ASA' from partially initialized module 'rasa' (most likely due to a circular import) (C:\Users\mailm\AppData\Local\Programs\Python\Python38-32\lib\site-packages\rasa\__init__.py))
Using Python 3.8.3
@MaTY-MT Try follow these steps Installation or this installation video https://youtu.be/4ewIABo0OkU. I will encourage to follow the video 
Hope it will solve your problem.
For anyone encountering this particular issue.
I managed to solve this issue by making sure my Python was x64.