#!/usr/bin/env python3

list_=[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

listnew_=list_
print("list=", list_)
print("listnew=", listnew_)

for value in listnew_:
    print(value)
    list_.remove(value)

print("list=", list_)
print("listnew=", listnew_)

############################

list= [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
listnew= [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
1
3
5
7
9
list= [2, 4, 6, 8, 10]
listnew= [2, 4, 6, 8, 10]