合并多个熊猫数据框来解决错误

Question

我一直在使用以下代码在Python中合并多个Pandas数据框：

import pandas as pd
from functools import reduce

dfs = [df1, df2, df3, df4, df5]
df_final = reduce(lambda left, right: pd.merge(left, right, on='date'), dfs)

现在给我这个错误：

TypeError: Can only merge Series or DataFrame objects, a <class 'list'> was passed

我该如何解决？