Pandas 2.1.1 Subtotal Dropping Index Names

[keg5038]

Hello!
Love the project, @chris1610! I have upgraded Pandas to 2.1.1 & Sidetable is now behaving differently in a couple of areas.

Before the upgrade to 2.1.1, I could call x.stb.subtotal & it would keep the index names. Now, it looks like it is dropping the index names from my multi-level index. Any suggestions?

[chris1610]

I've finally started to take a look at this and can not reproduce. Can you recreate with the seaborn titanic data:

df = sns.load_dataset('titanic')
df.groupby(['sex', 'class']).agg({'fare': ['sum']}).stb.subtotal()

When I execute the above, I get a deprecation warning but don't think that's the issue you're seeing.

[keg5038]

Thanks, @chris1610! I just installed an updated conda environment which defaults to pandas '2.0.3'.

In running your code above, it drops the index names ('sex','class') when you add in the stb.subtotal. I've included pics of both here.

[chris1610]

Ah. Got it. I'll look into that.. Thanks for the example.