sort_index throws IndexError for some permutations

[soerenwolfers]

Code Sample

df = pd.DataFrame(list(range(8)))
a.index = pd.MultiIndex.from_product([[0,1]]*3)
a.sort_index(level=[1,2,0])

Problem description

This throws an IndexEror: pop index out of range.
If I change the order to [2,0,1], it doesn't.

python: 3.6.6.final.0
pandas: 0.24.2
numpy: 1.15.4

[WillAyd]

Please provide fully reproducible code - it's not clear what a here is

[jayanthkaturi]

## a -> df
import pandas as pd
df = pd.DataFrame(list(range(8)))
df.index = pd.MultiIndex.from_product([[0,1]]*3)
df.sort_index(level=[1,2,0])

[WillAyd]

OK thanks for clarifying. The both seem to fail:

df.sort_index(level=[2,1,0])
df.sort_index(level=[1,2,0])

sort_remaining doesn't appear to have an impact. One pattern that may be apparent there is that both failures use all of the level and have the initial level as the last of the sort.

May or may not be related to issue - in any case investigation and PRs are always welcome!