numbers = [12, 3, 5, 8, 10, 7] total = 0 for num in numbers: if num % 2 == 0: total += num print(total) # Output: 30 The modulo operator % returns the remainder. Even numbers have num % 2 == 0 . Module 3: Intermediate Lists & List Comprehensions (New to Python 2) Previously, list comprehensions were taught in Python 3 courses only. The new Python 2 curriculum introduces them as an "advanced but preferred" method. Challenge 3.1: Squaring Numbers with Comprehension Prompt: “Take original = [1, 2, 3, 4, 5] and create a new list squared where each number is squared. Then print squared . Do not use a traditional for loop.”
word = "" while word != "quit": word = input("Enter a word (or 'quit'): ") if word != "quit": print(word.upper()) The new curriculum rejects solutions without the if guard, as printing "QUIT" after typing quit is considered a logical error. Module 2: For Loops and the Range Function (Updated) The biggest change in the new Python 2 course is the introduction of range() with three arguments and nested loops. Challenge 2.1: Multiplication Table Printer (New Style) Prompt: “Print the multiplication table for numbers 1 through 5, from 1 to 10. Use nested for loops. Output should be formatted as '2 x 3 = 6'.”
phonebook = {} while True: name = input("Enter name (or 'done'): ") if name == 'done': break number = input("Enter phone number: ") phonebook[name] = number print(phonebook) Prompt: “Given a dictionary grades = 'Alice': [85,90], 'Bob': [78,82], 'Charlie': [92,88] , print each student’s name and their average grade.”
temps = [32, 35, 28, 30, 40, 29] hot_temps_f = [(c * 9/5) + 32 for c in temps if c > 30] print(hot_temps_f) [89.6, 95.0, 104.0] Module 4: Dictionaries – Real-World Data (The "New" Practical Approach) The old curriculum asked you to create static dictionaries. The new course requires user-built dictionaries from multiple inputs. Challenge 4.1: Phonebook Builder Prompt: “Write a program that repeatedly asks for a 'name' and 'phone number'. Store them in a dictionary. Stop when the user types 'done' for name. Then print the full dictionary.”
for i in range(1, 6): for j in range(1, 11): print(f"i x j = i*j") print("---") # Separator between tables Forgetting the separator line or using break incorrectly. Challenge 2.2: Sum of Even Numbers (New Data Filtering) Prompt: “Given a list numbers = [12, 3, 5, 8, 10, 7] , use a for loop to calculate and print the sum of only the even numbers.”
If you have landed on this page, you are likely embarking on one of the most exciting journeys in the world of programming: learning Python through . Specifically, you are searching for Code Avengers answers Python 2 new —referring to the updated, streamlined curriculum for the Python 2 course on the platform.
