'is' vs '==' in python

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# '==' : value equality-two objects have the same value
# is : reference equality- two references refer to the same object

a=[1,2,3]
b=a #two references refer to the same object(b is not the copy of a)
print(b==a)
print(b is a)
c=a[:] #two references refer to the two different object(now c is the copy of a)
print(c==a)
print(c is a)

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