What is the purpose of a function in Python?
Python functions are reusable pieces of code that can be called on to perform specific tasks. Functions can accept inputs and return outputs. Functions help to break down complex tasks into smaller, more manageable pieces.
Function: A block of code that performs a specific task when it is called upon. Argument: A value passed to a function when it is called upon. Scope: The range of where a variable is visible and can be accessed within a program.
Python functions can have default parameters. If no argument is provided for a parameter with a default value, the default value is used. Python functions can have keyword arguments. Keyword arguments allow you to specify which argument is associated with which parameter. Python functions can have variable-length arguments. This allows you to pass in an arbitrary number of arguments to a function.
Did you know?
What are the differences between local and global variables when it comes to Python functions?
What are some best practices for defining a Python function?
How have you implemented local and global variables in your own Python functions?
Can you think of any real-world examples of how you might use a Python function to solve a problem?
Brain break: Draw a space alien making a pizza with 10 hands and 3 eyes.
Question: You have been tasked with creating a function that will take two numbers as parameters and return the quotient of those numbers. How will you go about completing this task? Clues: • Remember that Python functions must have a return statement. • Look up the division operator in Python. • Test your code with different numbers to see if it works. In pairs: Select and solve one of the tasks: A. Create a flowchart outlining the steps of the function. B. Write a few lines of pseudocode to explain the logic of the function.
What is the purpose of Python functions?
- To perform a specific task
- To declare variables
- To import modules
Which keyword is used to define a function in Python?
What does the return statement do in a Python function?
- It returns a value from the function
- It ends the execution of the function
- It prints output to the console
What is an argument in a Python function?
- A value passed to a function when it's called
- The name of a variable inside a function
- A loop construct in Python
How do you call or invoke a Python function?
- By using its name followed by parentheses and arguments if any are required.
- By importing it from another script.
- By using curly brackets and arguments if any are required.
Work together in pairs: What is the difference between a function and a method in Python?