how to delete pandas columns by index code example

Example 1: delete index in df

>>> df.reset_index(drop=True)
    class  max_speed
0    bird      389.0
1    bird       24.0
2  mammal       80.5
3  mammal        NaN

Example 2: python pandas drop column by index

df.drop(a_dataframe.columns[0], axis=1, inplace=True)