Two reference for list

Question

x=[1,2,3]
print(x[1])
y=x
y[1]=10
print(x)
print(y)

1,2,3 is the list of values which is stored in the memory
x is a reference for that list
so when we say x=y
y is also referring to the same values
by now when we change or modify any values . it will be highlighted in both variables

Answer 1

You have to use list slicing.
x=[1,2,3]
print(x[1]) #output 2
y=x[:]
y[1]=10
print(x) # output [1, 2, 3]
print(y) # output [1, 10, 3]