<aside> 👨🏼‍💻 In this page you will find some definitions and examples related to Errors & Exceptions in Python

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raise

Use raise to throw an exception if condition occurs

x = 10
if x > 5:
	raise Exception('...')

Assert

Use assert for certain condition

• If condition = True → Do nothing
• If condition = False → AssertError exception

# This example will check if x is higher than 20. 
# It will throw an exception if not.
x = 10
assert x >= 20, "x is higher than 20!"

Try & Except

Use try & except to catch and handle exceptions

• Python executes code following the try statement as 'normal'.
• If any exception occurs, it executes the code of the except statement.

try:
	x >= 20
except AssertionError as error:
	print(error)

• Additionally it can use else & finally conditions

  else: 
  #To instruct a program to excecute certain block of code 
  #only in the absence of exceptions.
  finally: 
  #Implement some sort of code/action after executing your code
  #Lets you execute code, regardless of the result of the try- and except blocks