I have created two data frames called 'Exmil_df' and `'Schedule_df'. I need to iterate over all the elements inside the data frame.I am using the below code.
    i=0
    j=0
    Schedule_df['Allocation']=0
    while i < len(Exmil_df):
        while j < len(Schedule_df):
            while (Schedule_df[Schedule_df['Requirement']]>=Schedule_df[Schedule_df['Allocation']]):
                print('*')
But it's giving KeyError: "None of [Int64Index([32000, 12000], dtype='int64')] are in the [columns]". Can't I access elements inside the loop in this way?
