Assignment Description

Create a program that takes a user's name, age, and country, then prints a formatted message using three different string formatting methods:

1. Using f-strings (Python 3.6+)
2. Using the str.format() method
3. Using the old % formatting

Example Solution

# String Formatting Assignment Solution
name = "Alice"
age = 30
country = "USA"

# 1. Using f-string
print(f"{name} is {age} years old and lives in {country}.")

# 2. Using format()
print("{} is {} years old and lives in {}.".format(name, age, country))

# 3. Using % formatting
print("%s is %d years old and lives in %s." % (name, age, country))

# Expected Output:
# Alice is 30 years old and lives in USA.
# Alice is 30 years old and lives in USA.
# Alice is 30 years old and lives in USA.

Assignment Description

Write a program that processes a paragraph of text and performs the following operations:

• Convert the entire text to uppercase and lowercase
• Split the text into words and count them
• Replace all occurrences of a specific word
• Find the position of a specific word
• Join a list of words back into a sentence

Assignment Description

Create a program that demonstrates various list operations:

1. Create a list of 5 numbers and a list of 5 strings
2. Append new items to both lists
3. Insert an item at a specific position
4. Remove items by value and by index
5. Use slicing to get sublists
6. Concatenate two lists

Assignment Description

Write a program that uses list comprehensions to:

• Create a list of squares from 1 to 10
• Filter even numbers from a list
• Convert a list of strings to uppercase
• Create a matrix using nested comprehensions
• Flatten a 2D list into a 1D list

Example Solution Snippet

# List Comprehensions Examples
# Squares of numbers 1-10
squares = [x**2 for x in range(1, 11)]

# Filter even numbers
numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
evens = [x for x in numbers if x % 2 == 0]

# Convert strings to uppercase
words = ["hello", "world", "python"]
upper_words = [word.upper() for word in words]

# Create a 3x3 matrix
matrix = [[i+j for j in range(3)] for i in range(3)]

# Flatten a 2D list
flat_list = [item for sublist in matrix for item in sublist]

Assignment Description

Create a BankAccount class with the following specifications:

• Attributes: account_number, account_holder, balance
• Methods: deposit(amount), withdraw(amount), display_balance()
• Constructor to initialize the account
• Validation for withdrawal (balance shouldn't go negative)
• Create multiple objects and test all methods

Example Solution Structure

class BankAccount:
    def __init__(self, account_number, account_holder, initial_balance=0):
        self.account_number = account_number
        self.account_holder = account_holder
        self.balance = initial_balance
    
    def deposit(self, amount):
        if amount > 0:
            self.balance += amount
            print(f"Deposited ${amount}. New balance: ${self.balance}")
        else:
            print("Deposit amount must be positive")
    
    def withdraw(self, amount):
        if 0 < amount <= self.balance:
            self.balance -= amount
            print(f"Withdrew ${amount}. New balance: ${self.balance}")
        else:
            print("Insufficient funds or invalid amount")
    
    def display_balance(self):
        print(f"Account Holder: {self.account_holder}")
        print(f"Account Number: {self.account_number}")
        print(f"Current Balance: ${self.balance}")

# Create and test account
account1 = BankAccount("123456", "Alice Smith", 1000)
account1.deposit(500)
account1.withdraw(200)
account1.display_balance()

Assignment Description

Create a Python package called math_utils with the following structure:

Each module should contain related functions:

• basic_operations.py: add, subtract, multiply, divide
• geometry.py: circle_area, rectangle_area, triangle_area
• statistics.py: mean, median, mode
• __init__.py: Should expose key functions for easy import