Question

Continue from the previous question, modify the following in the IP_address class. :

• add a method named get_statistics(). The get_statistics() method return a list of all statistics data (i.e. the ip address, total sum of all packet-size, total frequency, average of all packet-size)

For example, consider the following code fragment

ip_key = '192.168.0.24'
data_list =[(0, 84), (1, 84), (2, 84), (3, 84), (4, 84), (5, 84), (6, 84), (7, 84), (8, 84), (9, 84), (10, 84), (11, 84), (12, 84), (13, 84), (14, 84), (15, 84), (16, 84), (17, 84), (18, 84), (19, 84), (20, 84)]
size = 3
ip = IP_address(key, data_list, size)

The data_list contains a list of tuple objects. Each tuple consists of the time-frame value and the packet-size. You should summarize this list and create a frequency list, a sum list and an average list based on the time-frame value. There are a lot of data for each time-frame value, we will group packet-size values together. For example: the above data_list will be divided into 3 groups:

• (0, 84), (1, 84), (2, 84), (3, 84), (4, 84), (5, 84), (6, 84), (7, 84), (8, 84), (9, 84)
• (10, 84), (11, 84), (12, 84), (13, 84), (14, 84), (15, 84), (16, 84), (17, 84), (18, 84), (19, 84)
• (20, 84)
  Therefore, the ip object should contain: • ip address: '192.168.0.24' • a frequency list: [10, 10, 1] (i.e. there are 10 elements in the first group, 10 elements in the second group and 1 element in the third group) • a sum packet-size list: [840, 840, 84] • an average packet-size list: [84.0, 84.0, 84.0] For example: Test Result ip_key = '192.168.0.24 data_list =[(0, 84), (1, 84), (2, 84), (3, 84), (4, 84), (5, 84), (6, 84), (7, 84), (8, 84), (9, 84), (10, 84), (11, 84), (12, 84), (13, 84), (14, 84), (15, 84), (16, 84), (17, 84), (18, 84), (19, 84), (20, 84)] size = 3 ip = IP_address(ip_key, data_list, size) print(ip.get_statistics()). ['192.16 8.0.24', 1764, 2 1, 84]
  And,

  Continue from the previous question, modify the following in the IP_address class. :

• add a method named __str__(). The _str__() method return a nicely formatted string representation of the object.

• For example, consider the following code fragment:

Answer 1

Thanks for the question, here are the implemented functions - get_statistics() and __str()__

I have used the sample example to test these two functions and its working fine. Incase, any one test case fail do let me know so that I can change the code accordingly.

thanks a lot !

==================================================================

class IP_address():
    def __init__(self, ip, data_list, size):
        self.ip_address = ip
        self.data_list = data_list
        self.size = size


    def get_statistics(self):

        total_data_size = sum(packet[1] for packet in self.data_list)
        total_packets=len(self.data_list)
        average_packet_size=int(total_data_size/total_packets)
        return '{}, {}, {}, {}'.format(self.ip_address,total_data_size,total_packets,average_packet_size)

    def __str__(self):
        desc = self.ip_address
        statistics = []
        for i in range(0, len(self.data_list), 10):
            data = self.data_list[i: i + 10]
            frequency = len(data)
            sum_data = sum([packet[1] for packet in data])
            average = round(sum_data / frequency, 1)
            statistics.append([frequency, sum_data, average])
        desc += ':freq=[{}]'.format(', '.join([str(data[0]) for data in statistics]))
        desc += ',sum=[{}]'.format(', '.join([str(data[1]) for data in statistics]))
        desc += ',avg=[{}]'.format(', '.join([str(data[2]) for data in statistics]))
        return desc


ip_key = '192.168.0.24'
data_list = [(0, 84), (1, 84), (2, 84), (3, 84), (4, 84), (5, 84), (6, 84), (7, 84), (8, 84), (9, 84), (10, 84),
             (11, 84), (12, 84), (13, 84), (14, 84), (15, 84), (16, 84), (17, 84), (18, 84), (19, 84), (20, 84)]
size = 3
ip = IP_address(ip_key, data_list, size)
print(ip.get_statistics())
print(ip)

class IP_address(): definit_(self, ip, data_list, size): self.ip_address = ip self.data_list = data_list self.size = size def get_statistics (self): total_data_size = sum (packet [1] for packet in self.data_list) total_packets=len (self.data_list) average_packet_size=int (total_data_size/total_packets) return '{}, {}, {}, {}'. format (self.ip_address, total_data_size, total_packets, average_packet_size) def str_(self): desc = self.ip_address statistics = [] for i in range (0, len(self.data list), 10): data = self.data_list[i: i + 10] frequency = len (data) sum_data = sum ([packet[1] for packet in data]) average = round (sum_data / frequency 1) statistics.append([frequency, sum_data, average]) desc += ": freq=[{}]'.format(', '.join([str(data[0]) for data in statistics])) desc += ', sum=[{}]'.format(', '.join([str(data[1]) for data in statistics] ) ) desc += ', avg=[{}]'.format(', '.join([str(data[2] ) for data in statistics] ) ) return desc ip_key = 192.168.0.24 data_list = [(0, 84), (1, 84), (2, 84), (3, 84), (4, 84), (5, 84), (6, 84), (7, 84), (8, 84), (9, 84), (10, 84), (11, 84), (12, 84), (13, 84), (14, 84), (15, 84), (16, 84), (17, 84), (18, 84), (19, 84), (20, 84)] size = 3 ip = IP address (ip_key, data_list, size) print (ip.get_statistics () ) print (ip)

1: Project untitled - [C:\Users\248341\Pycharm Projects\untitled] - ... powerball.py - PyCharm Community Edition 4.0.3 Eile Edit View Navigate Code Refactor Run Tools VCS Window Help untitled powerball.py powerball.py class IP_address(): def __init__(self, ip, data_list, size): self.ip address = ip self.data_list = data_list self.size = size 7: Structure É def get_statistics (self): total_data_size = sum(packet [1] for packet in self.data_list) total_packets=len (self.data_list) average_packet_size=int (total_data_size/total_packets) return '}, {}, {}, {}'. format (self.ip_address, total_data_size, total_packets, average_packet_size) À of def _str_(self): desc = self.ip_address statistics = [] for i in range (0, len(self.data_list), 10): data = self.data_list[i: i + 101 frequency = len (data) sum_data = sum( [packet [1] for packet in data]) average = round (sum_data / frequency, 1) statistics.append([frequency, sum_data, average]) desc += ': freq=[0]'.format(', '.join(str(data[0]) for data in statistics])) desc += ', sum=[ {}]'.format(', '.join((str(data[1]) for data in statistics])) desc += ',avg=[{}]'.format(', '.join((str(data[2]) for data in statistics])) return desc ip_key = 192.168.0.24 data_list = [(0, 84), (1, 84), (2, 84), (3, 84), (4, 84), (5, 84), (6, 84), (7, 84), (8, 84), (9, 84), (10, 84), (11, 84), (12, 84), (13, 84), (14, 84), (15, 84), (16, 84), (17, 84), (18, 84), (19, 84), (20, 84)] size = 3 ip = IP address (ip_key, data_list, size) print (ip.get_statistics()) print (ip) Run powerball D:\Development_Avecto\Python36\python.exe C:/Users/248341/Pycharmprojects/untitled/powerball.py 192.168.0.24, 1764, 21, 84 192.168.0.24:freq=[10, 10, 1], sum=[840, 840, 84], avg=[84.0, 84.0, 84.0] AI = 1 Process finished with exit code o

thanks a lot !