Course Content

Introduction to Python Video Course

1. Getting Started

First Steps Comments Simple Math Operations Grocery Calculation Capstone Recap

2. Variables and Types

Data Types Storing Data in Variables Variable Naming Rules Using Variables String Indexing and Length String Slicing and Concatenation Inventory Sorting Capstone Challenge Recap

3. Conditional Statements

Boolean Data Type Combining Conditions Challenge Membership Operators and Type Comparisons Conditional Expressions Capstone Challenge Recap

4. Other Data Types

Lists and List Methods Nested Lists Challenge Tuples and Tuple Methods Tuple Operations Challenge Dictionaries and Dictionary Methods Capstone Challenge Recap

5. Loops

For Loops While Loops Range Function Iterating Over Indexes Challenge Nested Loops Capstone Challenge Challenge Recap

6. Functions

Built-in Functions User Defined Functions Challenge Functions with no `return`Modifying Functions Capstone Challenge Recap

Nested Loops

Nested loops extend the power of simple loops by allowing you to perform repeated actions across multiple dimensions. This is crucial for handling more complex tasks in a grocery store environment, such as organizing multi-layered inventory data or coordinating schedules across different departments.

Watch as Alex showcases how nested loops can be utilized to enhance efficiency and manage complex scenarios in our grocery store setting:

Nested loops are incredibly useful in programming when you need to loop through multiple sequences at the same time. By placing one loop inside another, you can iterate over elements in two or more dimensions, such as a list of lists:


              1234567891011121314
            
# List of lists representing stock in different departments
department_stocks = [
    ["Apples", "Bananas", "Cherries"],  # Fruits
    ["Milk", "Cheese", "Butter"],       # Dairy
    ["Bread", "Bagels", "Muffins"]      # Bakery
]

print("Inventory Check:")
for department in department_stocks:
    print(department) # For each iteration of the outer loop, the entire sublist is accessed
    # The inner loop then iterates over the items in that sublist
    for item in department:
        print(f" - {item}")
    print("")  # Add a line break for clarity

Notice how the outer loop iterates through each sublist in department_stocks, where each sublist represents a different department. The inner loop then iterates through all the items within each sublist. The outer loop does not proceed to the next sublist until the inner loop has finished iterating through all items in the current sublist.

Task

You were given lists representing different aisles in a grocery store. Each list contains specific items found in that aisle. Your task is to use nested loops to access and display each item along with its aisle number.

Task:

Initialize the Outer Loop: Set up a forloop that iterates over each list in aisles. This loop will manage which aisle is being checked.
Initialize the Inner Loop: Within the outer loop, set up another for loop that iterates over each item in the current aisle list. This allows checking of each individual item.

Task

Task:

Initialize the Outer Loop: Set up a forloop that iterates over each list in aisles. This loop will manage which aisle is being checked.
Initialize the Inner Loop: Within the outer loop, set up another for loop that iterates over each item in the current aisle list. This allows checking of each individual item.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Section 5. Chapter 6

Nested Loops

Watch as Alex showcases how nested loops can be utilized to enhance efficiency and manage complex scenarios in our grocery store setting:


              1234567891011121314
            
# List of lists representing stock in different departments
department_stocks = [
    ["Apples", "Bananas", "Cherries"],  # Fruits
    ["Milk", "Cheese", "Butter"],       # Dairy
    ["Bread", "Bagels", "Muffins"]      # Bakery
]

print("Inventory Check:")
for department in department_stocks:
    print(department) # For each iteration of the outer loop, the entire sublist is accessed
    # The inner loop then iterates over the items in that sublist
    for item in department:
        print(f" - {item}")
    print("")  # Add a line break for clarity

Task

Task:

Initialize the Outer Loop: Set up a forloop that iterates over each list in aisles. This loop will manage which aisle is being checked.
Initialize the Inner Loop: Within the outer loop, set up another for loop that iterates over each item in the current aisle list. This allows checking of each individual item.

Task

Task:

Initialize the Outer Loop: Set up a forloop that iterates over each list in aisles. This loop will manage which aisle is being checked.
Initialize the Inner Loop: Within the outer loop, set up another for loop that iterates over each item in the current aisle list. This allows checking of each individual item.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Section 5. Chapter 6

Nested Loops

Watch as Alex showcases how nested loops can be utilized to enhance efficiency and manage complex scenarios in our grocery store setting:


              1234567891011121314
            
# List of lists representing stock in different departments
department_stocks = [
    ["Apples", "Bananas", "Cherries"],  # Fruits
    ["Milk", "Cheese", "Butter"],       # Dairy
    ["Bread", "Bagels", "Muffins"]      # Bakery
]

print("Inventory Check:")
for department in department_stocks:
    print(department) # For each iteration of the outer loop, the entire sublist is accessed
    # The inner loop then iterates over the items in that sublist
    for item in department:
        print(f" - {item}")
    print("")  # Add a line break for clarity

Task

Task:

Initialize the Outer Loop: Set up a forloop that iterates over each list in aisles. This loop will manage which aisle is being checked.
Initialize the Inner Loop: Within the outer loop, set up another for loop that iterates over each item in the current aisle list. This allows checking of each individual item.

Task

Task:

Initialize the Outer Loop: Set up a forloop that iterates over each list in aisles. This loop will manage which aisle is being checked.
Initialize the Inner Loop: Within the outer loop, set up another for loop that iterates over each item in the current aisle list. This allows checking of each individual item.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Watch as Alex showcases how nested loops can be utilized to enhance efficiency and manage complex scenarios in our grocery store setting:


              1234567891011121314
            
# List of lists representing stock in different departments
department_stocks = [
    ["Apples", "Bananas", "Cherries"],  # Fruits
    ["Milk", "Cheese", "Butter"],       # Dairy
    ["Bread", "Bagels", "Muffins"]      # Bakery
]

print("Inventory Check:")
for department in department_stocks:
    print(department) # For each iteration of the outer loop, the entire sublist is accessed
    # The inner loop then iterates over the items in that sublist
    for item in department:
        print(f" - {item}")
    print("")  # Add a line break for clarity

Task

Task:

Initialize the Outer Loop: Set up a forloop that iterates over each list in aisles. This loop will manage which aisle is being checked.
Initialize the Inner Loop: Within the outer loop, set up another for loop that iterates over each item in the current aisle list. This allows checking of each individual item.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Section 5. Chapter 6

Switch to desktop for real-world practiceContinue from where you are using one of the options below