Remove adjacent duplicate elements from a list [duplicate]

Answer 1

Since you are in a Python class, I'm going to guess that you are new to the language. Thus, for you and any other beginners out there, I wrote a simple version of the code to help others get through the logic.

original= [1, 2, 2, 3]
newlist=[]

for item in original:
    if item in newlist:
        print "You don't need to add "+str(item)+" again."
    else:
        newlist.append(item)
        print "Added "+str(item)

print newlist