[[2],[33,4],[2]]
TypeError unhashable type:'list'
l=[[2],[33,4],[2]]
u_l=[]
[u_l.append(i) for i in l if i not in u_l]
Get unique values from a list in python - Stack Overflow https://stackoverflow.com/questions/12897374/get-unique-values-from-a-list-in-python
l = [e for i, e in enumerate(l) if l.index(e) == i]
