Nested Conditionals

A nested conditional is a conditional that is inside the block of another conditional. For example:

materialCovered = True
IStudied = True
if materialCovered:
	if IStudied:
		print("We covered the material and I know it")
	else:
		print("We covered the material but I don't know it")
else:
	print("We haven't covered the material yet")
# Prints: We covered the material and I know it

When using nested conditionals, it's important to pay attention to indentation. You can remember that a more indented block of code always follows a colon.

Nested conditionals can often be rewritten as chained conditions using logical operators. Our example can be rewritten as follows:

materialCovered = True
IStudied = True
if materialCovered and IStudied:
	print("We covered the material and I know it")
elif materialCovered and not IStudied:
	print("We covered the material but I don't know it")
else:
	print("We haven't covered the material yet")
# Prints: We covered the material and I know it

It's good to realize that neither way is "wrong". In different situations, one way might seem more logical to you, so feel free to use it.