>>> test1 = ["ccc","aaa","aaa","ccc","bbb","aaa","ddd","aaa"] >>> test1.count("aaa") 4 >>> for i in range(test1.count("aaa")-1): test1.remove("aaa") >>> test1 ['ccc', 'ccc', 'bbb', 'ddd', 'aaa'] >>> test1.count("aaa") 1