Pandas Inconsistent behavior of loc and iloc for MultiIndex

panel = pd.util.testing.makePanel(nper=2).to_frame()
panel.loc['2000-01-03']
panel.iloc[0]

Problem description

iloc returns only first row of the DataFrame, so it does not allow taking advantage of the multiple index levels.

Expected Output

I would expect iloc[0] to return all the elements that share the first value of the 0-level of the MultiIndex

Comment From: jreback

no, .iloc is a strict positional indexer, it does not regard the structure at all, only the first actual behavior. OTOH, .loc does take into account the level behavior.