Made a code for insertion sort, declared a sorted and an unsorted array, but the unsorted array is output as a sorted array at the end

def InsSort(myList):
    UBound = len(myList)

    for i in range(1,UBound):
        NextItem = myList[i]
        position = i - 1

        while position>=0 and myList[position]>NextItem:
            myList[position+1] = myList[position]
            position = position - 1
        myList[position+1] = NextItem


UnsortList = []
n = int(input("Enter number of elements in the List:\n"))
for j in range(0,n):
    element = int(input("Input element:\n"))
    UnsortList.append(element)
print(UnsortList)

myList = UnsortList

InsSort(myList)

print(str(UnsortList)+" is now sorted --> "+str(myList))

I let the user create their own array "UnsortList" using their input, I then copy it to "myList", and call the funtion InSort(myList) to sort the "myList" array, but when it excecutes print(str(UnsortList)+" is now sorted --> "+str(myList)), str(UnsortList) shows up as the sorted "myList" as well

An example output:

First it outputs the unsorted array via print(UnsortList)

[-9, 3, 6, 1, -3, 55, 22, -18]

Then where it is supposed to print the Unsorted and sorted array via print(str(UnsortList)+" is now sorted --> "+str(myList)), this is what it outputs:

[-18, -9, -3, 1, 3, 6, 22, 55] is now sorted --> [-18, -9, -3, 1, 3, 6, 22, 55]

The output I want is:

[-9, 3, 6, 1, -3, 55, 22, -18] is now sorted --> [-18, -9, -3, 1, 3, 6, 22, 55]

What could be the solution to this?

Thanks to OldBill, I realised myList = UnsortList does not create a copy of the list as I intended, the correct syntax is supposed to be myList = UnsortList.copy()

Copyright Notice：Content Author:「EmergencyEgg」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/74130382/made-a-code-for-insertion-sort-declared-a-sorted-and-an-unsorted-array-but-the