Question: Add the functionality of adding a dataset to another dataset. Essentially, using this functionality, one would able to add all data of one dataset to another dataset and use it. It would have one argument of type class dataset and no return value as it adds the parameter dataset’s value to self’s dataset.

For this question, the bottom line is that the below cell should work.

# Do not change this cell

print(len(txt_data))

csv_data.append_dataset(txt_data)

print(len(csv_data)) 

You have to decide where this function would go from the above three classes and implement it.

—– Other Classes —–

#Implement dataset class in this cell

class dataset:

    def __init__(self):

        self.list = []

    def __getitem__(self, index):

        if (len(self.list) > index):

            return (self.list[index])

        else:

            return None

    def __len__ (self):

        return len(self.list)

    def append_data(self, item):

        return self.list.append(item)

    pass

# Implement txt_dataset class in this cell

class txt_dataset(dataset):

    def __init__(self,filename,splitter,encoding):

        super().__init__()

        self.append_file(filename,splitter,encoding)

    def append_file(self,filename,splitter,encoding):

        file=open(filename,encoding=’utf8′)

        line=file.readline()

        while line:

            self.append_data(tuple(line.split(splitter)))

            line=file.readline()

    pass   

# Implement csv_dataset in this cell

import csv

class csv_dataset(dataset):

    def __init__(self,filename,splitter,encoding):

        super().__init__()

        file=open(filename,encoding=’utf8′)

        reader = csv.reader(filename, delimiter=”;”)

        for line in file:

            data_value=line.split(splitter)

            super().append_data(tuple(data_value)) 

      def append_file(self,filename,splitter,encoding):

        reader = csv.reader(filename, delimiter=”;”)

        file = open(filename, encoding=encoding)

        for line in file:

            data_value = line.split(splitter)

            super().append_data(tuple(data_value))