Y8 - SP2.2 - Variables

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Lesson 2 - Spring 2 - Working With Variables


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⌨️ Setting Up For Today

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  • Sign In with your Microsoft Account
  • Create a New project and call it Y8 - SP2.2 - Variables
  • Rename main.py as Activity 1.py

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📝 Link To My Project

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🎯 Learning Objectives

  • LO1: Learning what variables are and why they are used within programming
  • LO2: Learning how to create a variable, assign a value to it and output it within an fString
  • LO3: Learning how to prompt a user to enter a value through the input function, and how this can be assigned to a variable

⌨️ Create a Variable

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# 🐍 Coding Activity 1 - Variables

📖 Instructions

  • We are going to make a variable called username
  • Variables allow us to store data that can be accessed at any future point in the program
  • The name of a variable must be unique and contain no spaces

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# The code below creates a variable.
# The value on the right of the equals sign is being 
# assigned(given) to the variable.

username = "bob"

🐍 Outputting Variables in an fString

📖 Explanation

  • The code below uses the print() function to output an fString
  • fStrings allow us to include calculations or variables as part of an output string of text
  • Remember!
    • The string must have an f in front of it
    • Calculations or variables must be placed within {curly brackets}

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# Outputting a variable within an fString
# It must begin with an f
# Variables must be inside {curly brackets}


print(f"Hello {username}. It is nice to meet you!")

Extension Activity
  • Create another variable called place
  • Assign the name of a place
  • Output an fString that includes the place along with a suitable message
  • Make sure you explain your code with suitable comments

LO1 - Reflection Task

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LO1 Reflection Task

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🐍 Coding Activity 2

Create a new python file called Activity 2.py



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# 🐍 Activity 2 - Inputs and Variables

🐍 Assigning an Input to a Variable

We will now learn how to create a user input and assign it to a variable

  • A new variable called food will be created
  • A user input will be assigned (given) to the variable
  • The input contains a prompt (message) that tells the user what to do

Add the following code to your program


# The code below assigns a user input to a variable
# The text string in the brackets is a prompt (telling the user what to do)

food = input("Type the name of your favourite food: ")

🐍 Outputting the value of a variable in an fString

We will now output the variable within an fString

Add the following code to a new line of your program


# The code below uses an fString to output the value of the variable
# The variable is placed in the curly brackets

print(f"Wow, I really like {food} as well.")

🐍 Simulate A Conversation

It's now your turn to create a virtual conversation!

Your program should behave like this...

You must ensure you use a different variable for each question


Welcome to PopCulture ChatBot!
What is your name?
> Mia

Hi Mia! Nice to meet you.

What is your favourite TV show??
> Friends

Wow, I like watching friends as well

What is your favourite snack??
> Doritos

Cool, nothing beats watching Friends and eating Doritos

Where would you like to travel to?
> New Zealand

Wow, It would be great to visit New Zealand, but don't forget to pack Doritos (in case they don't have any)!
Extension Activity
  • Use an fString in the input prompt, to make the questions more targeted

colour = input(f"{username}, what is your favourite colour?")

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💯 Wayground Quiz

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https://wayground.com/join/quiz/69a4bc21b3310e0c2d8f86a5/start?from=admin&preview=true

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