Variable explorer show none for last level in row multiindex

Description

What steps will reproduce the problem?

import pandas as pd import numpy as np

my_df = pd.DataFrame([[1,1,1,1],[1,1,1,1],[1,1,1,1]],columns=[‘a’,‘b’,‘c’,‘d’]) my_df = my_df.groupby([‘a’,‘b’]).agg({‘c’:[sum] ,‘d’:[max] })

my_df2 = pd.DataFrame([[1,1,1,1],[1,1,1,1],[1,1,1,1]],columns=[‘a’,‘b’,‘c’,‘d’]) my_df2 = my_df2.groupby([‘a’,‘b’,‘c’]).agg({‘d’:[max] })

When a dataframe has multiindex in both rows and columns, variable explorer shows None for the last level of rows’ multiindex. Regardless the number of levels.

Hypothesys: either last value of rows’ index is not being read, either it is being treated as a colunm?

Versions

• Spyder version: 4.1.5
• Python version: 3.8.5
• Qt version: 5.9.7
• PyQt5 version: 5.9.2
• Operating System: Windows 10

Dependencies

# Mandatory:
atomicwrites >=1.2.0           :  1.4.0 (OK)
chardet >=2.0.0                :  3.0.4 (OK)
cloudpickle >=0.5.0            :  1.6.0 (OK)
diff_match_patch >=20181111    :  20200713 (OK)
intervaltree                   :  None (OK)
IPython >=4.0                  :  7.18.1 (OK)
jedi =0.17.1                   :  0.17.1 (OK)
nbconvert >=4.0                :  5.6.1 (OK)
numpydoc >=0.6.0               :  1.1.0 (OK)
paramiko >=2.4.0               :  2.7.2 (OK)
parso =0.7.0                   :  0.7.0 (OK)
pexpect >=4.4.0                :  4.8.0 (OK)
pickleshare >=0.4              :  0.7.5 (OK)
psutil >=5.3                   :  5.7.2 (OK)
pygments >=2.0                 :  2.6.1 (OK)
pylint >=1.0                   :  2.6.0 (OK)
pyls >=0.34.0;<1.0.0           :  0.34.1 (OK)
qdarkstyle >=2.8               :  2.8.1 (OK)
qtawesome >=0.5.7              :  0.7.2 (OK)
qtconsole >=4.6.0              :  4.7.6 (OK)
qtpy >=1.5.0                   :  1.9.0 (OK)
rtree >=0.8.3                  :  0.9.4 (OK)
sphinx >=0.6.6                 :  3.2.1 (OK)
spyder_kernels >=1.9.4;<1.10.0 :  1.9.4 (OK)
watchdog                       :  None (OK)
zmq >=17                       :  19.0.1 (OK)

# Optional:
cython >=0.21                  :  None (OK)
matplotlib >=2.0.0             :  3.3.1 (OK)
numpy >=1.7                    :  1.19.1 (OK)
pandas >=0.13.1                :  1.1.1 (OK)
scipy >=0.17.0                 :  1.5.0 (OK)
sympy >=0.7.3                  :  None (OK)

[eduardosuela]

@andfoy not sure, maybe aggregating the data causes the index to not have a label? We will need to check further to see if there is actually a label to show instead of the None

I have check the multiindexes with python code and both have values It seems a problem with the visualization itself

[eduardosuela]

Hi @eduardosuela, thanks for reporting this issue, does this screenshot reproduces your problem?

@dalthviz, do you know if this is expected?

Yes that’s exactly what happens

I have thought about the problem Maybe the labels should be at the places where Index 0, Index 1 … that way they wouldn’t be competing for that “small matrix”. The last cell will always be not enough to hold the value of both rows and cols