how to delete the first column of a dataframe code example

Example 1: delete columns pandas

df = df.drop(df.columns[[0, 1, 3]], axis=1)  # df.columns is zero-based pd.Index 
df.drop(['column_nameA', 'column_nameB'], axis=1, inplace=True)

Example 2: pandas dataframe delete column

del df['column_name']