Python Tutorials · Python Operators

Membership Operators

Learn all about Membership Operators in this comprehensive tutorial.

5 min read beginner

Membership operators are used to test if a sequence is presented in an object:

Operator	Description	Example	Try it
in	Returns True if a sequence with the specified value is present in the object	x in y	Try it »
not in	Returns True if a sequence with the specified value is not present in the object	x not in y	Try it »

Examples

python

fruits = ["apple", "banana", "cherry"]

print("banana" in fruits)

python

fruits = ["apple", "banana", "cherry"]

print("pineapple" not in fruits)

The membership operators also work with strings:

python

text = "Hello World"

print("H" in text)
print("hello" in text)
print("z" not in text)

2 questions

Which of the following is true about Membership Operators?

It is strictly typedIt is evaluated at runtimeIt requires explicit memory managementIt is deprecated

What is the most common pitfall when working with Membership Operators?

SyntaxErrorIndentationErrorNameErrorTypeError

Answer all questions to submit.