Hello, I am a python noob and I need help running some code I have found on the internet in the run module or shell...

the code I have should work 100% but I dont know how to run it to show the results...
Code:
def remove_duplicates():
t = ['a', 'b', 'c', 'd']
t2 = ['a', 'c', 'd']
for t in t2:
t.append(t.remove())
return t

referenced code from: http://stackoverflow.com/questions/7961363/python-removing-duplicates-in-lists

Question

Hello, I am a python noob and I need help running some code I have found on the internet in the run module or shell...

the code I have should work 100% but I dont know how to run it to show the results...
Code:
def remove_duplicates():
    t = ['a', 'b', 'c', 'd']
    t2 = ['a', 'c', 'd']
    for t in t2:
        t.append(t.remove())
    return t


referenced code from: http://stackoverflow.com/questions/7961363/python-removing-duplicates-in-lists