Which way is the correct way of copying (deepcopy) object_1 to object_2? (A is a class)
class A:
def __init__(self):
self.x
self.y
a)object_1 = A()
object_2.x = object_1.x
object_2.y = object_1.y
b) object_1 = A()
object_2.x = object_1.x
object_2.y = object_1.y
#OR
object_1 = A()
object_2 = object_1
c) object_1 = A()
object_2 = A()
object_2.x = object_1.x
object_2.y = object_1.y
d) object_1 = A()
object_2 = object_1
The correct way of copying (deepcopy) object_1 to object_2 depends on what you want to achieve. Let's go through the options and explain each one:
a) This option does not create a copy of object_1. Instead, it simply assigns the values of object_1's attributes to object_2's attributes. Any changes made to object_2 will not affect object_1, but they will still reference the same instance of the class. So this is not a deepcopy.
b) This option creates a new instance of class A and assigns it to object_1. Then, it assigns the values of object_1's attributes to object_2's attributes. However, this is not a deepcopy either. Both object_1 and object_2 will reference the same instance of class A, and any changes made to one will affect the other.
c) This option creates two separate instances of class A, object_1, and object_2. Then, it assigns the values of object_1's attributes to object_2's attributes. This is a closer approach to deepcopy, as the attributes of object_2 will have the same values as object_1's attributes, but they will not reference the same instance of class A.
d) This option creates a new instance of class A and assigns it to object_1. Then, it assigns the same instance of class A to object_2. This is the closest approach to a true deepcopy in this set of options. Both object_1 and object_2 will reference the same instance of class A, so any changes made to one will affect the other.
If you want a proper deepcopy, you can use the `copy` module in Python. Here is how you can achieve it:
from copy import deepcopy
object_1 = A()
object_2 = deepcopy(object_1)
This will create a new instance of class A, with the same attribute values as object_1, and assign it to object_2. Now, object_1 and object_2 will be independent instances, and any changes made to one will not affect the other.
So, out of the provided options, option d) is the closest to a deepcopy. However, if you specifically need a deepcopy, you should use the `deepcopy` function from the `copy` module.