how to select a column in python code example

Example 1: select columns to include in new dataframe in python

new = old[['A', 'C', 'D']].copy()

Example 2: select columns to include in new dataframe in python

new = old.filter(['A','B','D'], axis=1)

Example 3: selecting items in a column of a dataframe

df.loc[df['column_name'] == some_value]