大熊猫-计算不同的多列

Question

我想依靠我的pandas DataFrame的两列并相应地标记这些计数，就像我对表中的以下sql查询执行的方式一样：

select dim1, dim2, count(distinct dim3) as count_dim3, count(distinct dim4) as count_dim4
from my_table
group by dim1, dim2