如何高效合并Python列表字典，实现数据去重并整合？

book1 = [{'高校': ['南京大学', '天津大学', '南开大学']}, {'国家': ['印度', '美国']}]
book2 = [{'高校': ['南京大学', '东华大学', '中南大学']}, {'国家': ['乌克兰', '俄罗斯']}, {'论坛': ['顶尖科学家论坛', '统计之都']}]
book3 = [{'高校': ['南京大学', '天津大学', '南开大学', '东华大学', '中南大学']}, {'国家': ['印度', '美国', '乌克兰', '俄罗斯']}, {'论坛': ['顶尖科学家论坛', '统计之都']}]

gx = []
gj = []
lt = []
for i in book1[0]['高校']:
    gx.append(i)
for i in book1[1]['国家']:
    gj.append(i)
for i in book2[0]['高校']:
    if gx.count(i) == 0:
        gx.append(i)
for i in book2[1]['国家']:
    if gj.count(i) == 0:
        gj.append(i)
for i in book2[2]['论坛']:
    lt.append(i)

newbook3 = [{'高校': gx}, {'国家': gj}, {'论坛': lt}]

newOBJ = {}
newBook = []
def appendList(aList):
    for i in range(len(aList)):
        for k, v in aList[i].items():
            if k in newOBJ:
                CList = newOBJ[k]
            else:
                newOBJ[k] = []
                CList = newOBJ[k]
            for z in v:
                if CList.count(z) == 0:
                    CList.append(z)
appendList(book1)
appendList(book2)
for k, v in newOBJ.items():
    newBook.append({k: v})
print(str(newBook))