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test_identity.py

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"""Identity operators

@see: https://www.w3schools.com/python/python_operators.asp

Identity operators are used to compare the objects, not if they are equal, but if they are actually

the same object, with the same memory location.

"""

def test_identity_operators():

"""Identity operators"""

# Let's illustrate identity operators based on the following lists.

first_fruits_list = ["apple", "banana"]

second_fruits_list = ["apple", "banana"]

third_fruits_list = first_fruits_list

# is

# Returns true if both variables are the same object.

# Example:

# first_fruits_list and third_fruits_list are the same objects.

assert first_fruits_list is third_fruits_list

# is not

# Returns true if both variables are not the same object.

# Example:

# first_fruits_list and second_fruits_list are not the same objects, even if they have

# the same content

assert first_fruits_list is not second_fruits_list

# To demonstrate the difference between "is" and "==": this comparison returns True because

# first_fruits_list is equal to second_fruits_list.

assert first_fruits_list == second_fruits_list