Python Function

Python Function


Functions

Function are named blocks of code. designed to do one specific job. Information passed to a function is called an argument, and information received by a function is called a parameter.

#A simple function
def greet_user():
 """Dislay a simple greeting."""
 print("Hello!")

#calling function
greet_user()

#Passing an argument
def greet_user(username):
 """Display a personalized greeting."""
 print("Hello, " + username + "!")

#calling function
greet_user('jesse')



#Default values for parameters
def make_pizza(topping='bacon'):
 """Make a single-topping pizza."""
 print("Have a " + topping + " pizza!")

#calling function
make_pizza()

#calling function
make_pizza('pepperoni')

#Returning a value
def add_numbers(x, y):
 """Add two numbers and return the sum."""
 return x + y

sum = add_numbers(3, 5)
print(sum)

Screenshot

python function

 

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