extract rows from dataframe python from a given column values code example

Example 1: panda select rows where column value inferior to

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

Example 2: return rows based on column

df.loc[(df['column_name'] >= A) & (df['column_name'] <= B)]

Example 3: return rows based on column

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