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How to remove duplicate items from list in python?

testList = ["Canada", "Japan", "Canada", "Germany", "Japan", "Italy"]
print(testList)
 
cleanlist = []
[cleanlist.append(x) for x in testList if x not in cleanlist]
print(cleanlist)
Output
['Canada', 'Japan', 'Canada', 'Germany', 'Japan', 'Italy']
['Canada', 'Japan', 'Germany', 'Italy']
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