Why am I getting duplicate values in my output?

[DT]

With the following code:

import csv


class AccessPoint(object):

    def __init__(self, name, ipv4, model, location):
        self.name = name
        self.ipv4 = ipv4
        self.model = model
        self.location = location
        print('{0} born'.format(self.name))

    def __del__(self):
        print('{0} died'.format(self.name))


def main():
    ap_list = []
    ap_dict = {}

    with open('C:\\inventory.csv', 'r') as csvfile:
        csv_reader = csv.DictReader(csvfile)

        for row in csv_reader:
            ap = AccessPoint(row['Host Name'], row['Static IP Address'], row['Device Model'], row['Host Name'][0:5])

            ap_dict['ap_name'] = ap.name
            ap_dict['ap_ipv4'] = ap.ipv4
            ap_dict['ap_model'] = ap.model
            ap_dict['ap_location'] = ap.location

            ap_list.append(ap_dict)

        print(ap_list)


if __name__ == '__main__':
    main()


When I execute print(ap_list) I get the very last row in the CSV repeated once for every row in the file. I would expect to see a list of ap_dicts, but I do not. When I add print(ap_dict) directly after the ap_list.append(ap_dict) inside the loop I see the correct values. Why is it that the print(ap_list) that happens outside of the for loop is only printing the last item on repeat?

Here is some example output data:

AP1 born
AP2 born
AP1 died
AP3 born
AP2 died
[{'ap_name': 'AP3', 'ap_ipv4': '192.168.1.1', 'ap_model': 'Linksys', 'ap_location': 'HQ'}, {'ap_name': 'AP3', 'ap_ipv4': '192.168.1.1', 'ap_model': 'Linksys', 'ap_location': 'HQ'}, {'ap_name': 'AP3', 'ap_ipv4': '192.168.1.1', 'ap_model': 'Linksys', 'ap_location': 'HQ'}
AP3 died


Thanks in advance.