how to drop columns based on index in pandas code example

Example 1: how to drop the index column in pandas

df.reset_index(drop=True, inplace=True)

Example 2: pandas drop columns by index

cols = [1,2,4,5,12]
df.drop(df.columns[cols],axis=1,inplace=True)

Example 3: how to drop a column by name in pandas

>>> df.drop(columns=['B', 'C'])
   A   D
0  0   3
1  4   7
2  8  11