What Is the Fastest Way to Check if a Value Exists in a Python List?

python

The fastest way to check if a value exists in a Python list is by using the "in" keyword.

Example:

my_list = [1, 2, 3, 4, 5]

if 3 in my_list:
    print("Value exists")
else:
    print("Value does not exist")

Output:

Value exists

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