Identity Operator

It is used to check if two values (or variables) are located on the same part of the memory.

Operator	Description	Example
is	Evaluates to true if the variables on either side of the operator point to the same object and otherwise false	a is b
is not	Evaluates to false if the variables on either side of the operator point to the same object and true otherwise	a is not b

Identity Operator - Program Link

# Python Identity Operator
a=10
b=20
print("is ",a is b)
print("is not", a is not b)
a=10
b=10
print("is ",a is b)
print("is not", a is not b)
Output:
is  False
is not True
is  True
is not False

Memebership Operator

Precedence of Operator

References

Allen B. Downey, “Think Python: How to Think Like a Computer Scientist‘‘, 2nd edition, Updated for Python 3, Shroff/O‘Reilly Publishers, 2016 (http://greenteapress.com/wp/thinkpython/)
Guido van Rossum and Fred L. Drake Jr, ―An Introduction to Python – Revised and updated for Python 3.2, Network Theory Ltd., 2011.
John V Guttag, ―Introduction to Computation and Programming Using Python‘‘, Revised and expanded Edition, MIT Press , 2013
Robert Sedgewick, Kevin Wayne, Robert Dondero, ―Introduction to Programming in Python: An Inter-disciplinary Approach, Pearson India Education Services Pvt. Ltd., 2016.
Timothy A. Budd, ―Exploring Python‖, Mc-Graw Hill Education (India) Private Ltd.,, 2015. 4. Kenneth A. Lambert, ―Fundamentals of Python: First Programs‖, CENGAGE Learning, 2012.
Charles Dierbach, ―Introduction to Computer Science using Python: A Computational Problem-Solving Focus, Wiley India Edition, 2013.
Paul Gries, Jennifer Campbell and Jason Montojo, ―Practical Programming: An Introduction to Computer Science using Python 3‖, Second edition, Pragmatic Programmers, LLC, 2013.