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Create a Program to Implement Container Objects in Python Assignment Solution

July 15, 2024
Dr. Olivia Campbell
Dr. Olivia
🇺🇸 United States
Python
Dr. Olivia Campbell holds a Ph.D. in Computer Science from the University of Cambridge. With over 800 completed assignments, she specializes in developing complex Python applications, including fitness trackers and exercise planners. Dr. Campbell's expertise lies in algorithm design and data analysis, ensuring optimal performance and accuracy in every project she undertakes.
Key Topics
  • Instructions
  • Requirements and Specifications
Tip of the day
Always follow object-oriented principles like encapsulation and inheritance. Break your code into small, reusable classes and methods. Use meaningful variable names, and always handle exceptions properly to avoid runtime errors. Don’t forget to test your code with different input cases before submission.
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Instructions

Objective

Write a python assignment to implement container objects.

Requirements and Specifications

program-to-implement-container-objects-in-python

Source Code

class Container: def __init__(self): """ Create an empty container """ self.__items = list() def insert(self, item): """ Append an element at the end of the container """ self.__items.append(item) def erase_one(self, item): """ Delete the first occurrence of the item """ if item in self.__items: self.__items.remove(item) def erase_all(self, item): """ Delete all occurrence of the item in the list """ while item in self.__items: self.__items.remove(item) def count(self, item): """ Count the occurrence of item in the list """ occurrence = 0 for some_item in self.__items: if some_item == item: occurrence += 1 return occurrence def items(self): """ Return distinct items in the list """ distinct_items = list() for item in self.__items: if item not in distinct_items: distinct_items.append(item) return distinct_items def __str__(self): """ Return a string representation of the container """ return str(self.__items)[1:-1] def __repr__(self): """ Returns a printable representation of the container """ return str(self.__items)[1:-1] def __getitem__(self, idx): """ Access an item from the list given the index """ return self.__items[idx] def __add__(self, other_container): """ Return a new container that contains all the items that is here and the other container """ new_container = Container() new_container.__items = self.__items + other_container.__items return new_container def __sub__(self, other_container): """ Return a new container where items here does not exist on the other container """ paired_indices = list() for i in range(len(other_container.__items)): paired_indices.append(False) new_container = Container() for i in range(len(self.__items)): pair_found = False for j in range(len(other_container.__items)): if self.__items[i] == other_container.__items[j] and not paired_indices[j]: pair_found = True paired_indices[j] = True break if not pair_found: new_container.__items.append(self.__items[i]) return new_container def __mul__(self, other_container): """ Find the intersection of two containers """ paired_indices = list() for i in range(len(other_container.__items)): paired_indices.append(False) new_container = Container() for i in range(len(self.__items)): pair_found = False for j in range(len(other_container.__items)): if self.__items[i] == other_container[j] and not paired_indices[j]: pair_found = True paired_indices[j] = True break if pair_found: new_container.__items.append(self.__items[i]) return new_container

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