去重的几种方式python

a = [1, 2, 3, 2, 4, 1, 5]

# 转换为集合,去重
b = set(a)
b = list(b)
print(b)

# 遍历，输出列表,去重
c = []
for i in a:
    if i not in c:
        c.append(i)
print(c)

# 字典方法
def removeSame3(L):
    myDict = {}
    for i in L:
        myDict[i] = 1
    L = list(myDict.keys())
    return L