You get this error with python when you try from numba import jit, jitclass

How to fix : cannot import name ‘jitclass’ from ‘numba’ (/opt/conda/lib/python3.7/site-packages/numba/init.py)
You only need to import differently jitclass :
From :
from numba import jitclass
You need to use now :
from numba.experimental import jitclass