If there is a class Point of two attributes x and y. what is output of the following code? from copy import copyQ = Point(3,4)P = copy(Q)P.x = 5print(Q.x)
Question
If there is a class Point of two attributes x and y. what is output of the following code? from copy import copyQ = Point(3,4)P = copy(Q)P.x = 5print(Q.x)
Solution
The output of the code will be 3.
Here's the step by step explanation:
-
A class
Pointis defined with two attributesxandy. This is not shown in the code you provided, but it's mentioned in your question. -
An instance of
Pointis created withxas 3 andyas 4. This instance is assigned to the variableQ. -
The
copyfunction from thecopymodule is used to create a shallow copy ofQ. This copy is assigned to the variableP. -
The
xattribute ofPis changed to 5. However, this does not affectQbecausePis a copy ofQ, not a reference to the same object. -
When
print(Q.x)is called, it prints thexattribute ofQ, which is still
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