Parsing csv using python

[Firstname_Lastname]

I'm trying to parse a csv file using python. The csv file contains 2 columns with order_total and created_datetime.

[inline]24.99 2015-06-01 00:00:12
0 2015-06-01 00:03:15
164.45 2015-06-01 00:04:05
24.99 2015-06-01 00:08:01
0 2015-06-01 00:08:23
46.73 2015-06-01 00:08:51
0 2015-06-01 00:08:58
47.73 2015-06-02 00:00:25
101.74 2015-06-02 00:04:11
119.99 2015-06-02 00:04:35
38.59 2015-06-02 00:05:26
73.47 2015-06-02 00:06:50
34.24 2015-06-02 00:07:36
27.24 2015-06-03 00:01:40
82.2 2015-06-03 00:12:21
23.48 2015-06-03 00:12:35[/inline]

I need to print the total for each day. For instance the output should be -

2015-06-01 -> 261.16
2015-06-02 -> 415.75
2015-06-03 -> 132.92

Below is my code and its not working as expected -

def sum_orders_test(self,start_date,end_date):
        initial_date = datetime.date(int(start_date.split('-')[0]),int(start_date.split('-')[1]),int(start_date.split('-')[2]))
        final_date = datetime.date(int(end_date.split('-')[0]),int(end_date.split('-')[1]),int(end_date.split('-')[2]))
        day = datetime.timedelta(days=1)
        with open("file1.csv", 'r') as data_file:
            next(data_file)
            reader = csv.reader(data_file, delimiter=',')
            order_total=0
            if initial_date <= final_date:
                for row in reader:
                    if str(initial_date) in row[1]:
                        print 'initial_date : ' + str(initial_date)
                        print 'Date : ' + row[1]
                        order_total = order_total + row[0]
                    else:
                        print 'Else'
                        print 'Date ' + str(row[1]) + 'Total ' +str(order_total)
                        order_total=0
                        initial_date = initial_date + day