Python Pandas - Get location for a label or a tuple of labels in a MultiIndex

To get location for a label or a tuple of labels in a MultiIndex, use the MultiIndex.get_loc() method in Pandas.

At first, import the required libraries −

import pandas as pd

MultiIndex is a multi-level, or hierarchical, index object for pandas objects −

multiIndex = pd.MultiIndex.from_arrays([list('pqrrss'), list('stuvwx')])

Display the MultiIndex −

print("The MultiIndex...\n",multiIndex)

Get the location −

print("\nGet the locations in MultiIndex...\n",multiIndex.get_loc('s'))

Example

Following is the code −

import pandas as pd

# MultiIndex is a multi-level, or hierarchical, index object for pandas objects
multiIndex = pd.MultiIndex.from_arrays([list('pqrrss'), list('stuvwx')])

# display the MultiIndex
print("The MultiIndex...\n",multiIndex)

# get the levels in MultiIndex
print("\nThe levels in MultiIndex...\n",multiIndex.levels)

# Get the location
print("\nGet the locations in MultiIndex...\n",multiIndex.get_loc('s'))

Output

This will produce the following output −

The MultiIndex...
MultiIndex([('p', 's'),
            ('q', 't'),
            ('r', 'u'),
            ('r', 'v'),
            ('s', 'w'),
            ('s', 'x')],
           )

The levels in MultiIndex...
   [['p', 'q', 'r', 's'], ['s', 't', 'u', 'v', 'w', 'x']]

Get the locations in MultiIndex...
   slice(4, 6, None)