print all unique values in a dictionary

L = [{"V":"S001"}, {"V": "S002"}, {"VI": "S001"}, {"VI": "S005"}, {"VII":"S005"}, {"V":"S009"},{"VIII":"S007"}]
print("Original List: ",L)
u_value = set( val for dic in L for val in dic.values())
print("Unique Values: ",u_value)

dict = {'511':'Vishnu','512':'Vishnu','513':'Ram','514':'Ram','515':'sita'}
list =[] # create empty list
for val in dict.values(): 
  if val in list: 
    continue 
  else:
    list.append(val)

print list