how to remove index number in pandas code example

Example 1: pandas df remove index

df = df.reset_index(drop=True)

Example 2: how to remove some indexes from a dataframe in python

>>> df.drop(index='cow', columns='small')
                big
lama    speed   45.0
        weight  200.0
        length  1.5
falcon  speed   320.0
        weight  1.0
        length  0.3