Code Challenges

51 - Write a program that takes in a list of integers and outputs the product of all the numbers in the list.

Python

Lists

If Statements

31 - Create a dictionary of 5 countries and their respective capitals, then retrieve and print the capital of a user-specified country.

Python

Data Types

Dictionaries

115 - Create a function that takes in a list of numbers and returns True if all elements are positive and False otherwise

Python

Lists

Functions

235 - Test a class that represents a bank account: Write a BankAccount class that has attributes for the account holder's name, account number, and balance. Then, write test cases to ensure that the class works correctly, including testing the initialization of the object, deposit and withdraw methods, and checking that the account balance is updated correctly.

Python

Testing

55 - Write a program that takes in a dictionary of grades (string keys and float values) and outputs the average grade.

Python

Dictionaries

If Statements

186 - What is wrong with the code below?

Python

Debugging

139 - Create a class "Product" with properties for name, price, and quantity. Create methods for calculating the total cost and for printing the product information.

Python

Object Oriented Programming

30 - Write a program that takes in a tuple of numbers and returns a tuple with the median and mode of the numbers.

Python

Data Types

Tuples

154 - Create a class Pet with instance variables for name, breed, and owner. Create a method adopt that takes in a string argument and sets it as the new owner. Create a subclass Cat with a method purr that returns a string indicating the cat is purring.

Python

Object Oriented Programming

148 - Create a class Vehicle with a method drive that takes in a string argument and prints the string to the console. Create subclasses Car, Truck, and Motorcycle and override the drive method in each subclass to add additional information about the type of vehicle.

Python

Object Oriented Programming

157 - Create a class Store with instance variables for products and a method add_product that takes in a string argument and adds it to the list of products. Create a subclass OnlineStore with a method purchase that takes in a string argument, removes it from the list of products, and returns a message indicating the purchase was successful.

Python

Object Oriented Programming

71 - Write a program that prints all the elements in a list in reverse order.

Python

Lists

For Loops

29 - Create a program that takes in a tuple of strings and returns a tuple with the shortest and longest string.

Python

Data Types

Tuples

40 - Write a program that takes a string input from the user and prints the number of occurrences of each letter in the string. The output should be displayed in the format of "Letter 'X' occurs Y times".

Python

Strings

If Statements

36 - Write a program that takes in two numbers and determines if the first number is greater than, less than, or equal to the second number.

Python

Numbers

If Statements

88 - Create a function that takes in a number and returns the factorial of that number

Python

Numbers

Functions

125 - Create a function that takes in a list of numbers and a tuple that contains two numbers, and returns a new list that contains only the numbers in the list that are between the two numbers in the tuple.

Python

Sets

Functions

44 - Write a program that checks if a given string is empty, and outputs True if it is empty and False if it isn't.

Python

Booleans

If Statements

183 - What is wrong with the code below?

Python

Debugging

47 - Write a program that takes in a list of strings and checks if all the strings contain a given substring, and outputs True if they all do and False if there is a string without the substring.

Python

Booleans

If Statements

57 - Write a program that takes in two dictionaries of integers (integer keys and integer values) and outputs a dictionary of the elements that are in both dictionaries.

Python

Dictionaries

If Statements

129 - Write a function that takes in a string and a dictionary, where the keys are strings and the values are lists of strings, and returns a new list that contains only the keys of the dictionary that have the given string in their corresponding list.

Python

Dictionaries

Functions

174 - Create a program that calculates the perimeter and area of a rectangle and saves the functions in a module. Import the module into another program and allow the user to input the length and width of the rectangle.

Python

Modules and Packages

162 - Create a custom module with several functions, import it into another program and call the functions to display their results.

Python

Modules and Packages

54 - Write a program that takes in a set of integers and outputs the sum of all the even numbers in the set.

Python

Sets

If Statements

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