list = [1,1,3,4,6,3,7]

for s in list:
    if list.count(s) >1:
        list.remove(s)

list2=[]
for s in list:
    if s not in list2:
        list2.append(s)

print list2

list2=[]
for s in list:
    list2.append(s)

print list2