Python Copy and assign value

With the ' b=a ' copy, the operation of the variable A, a and B will work on the object a points to.

Assigning a value with ' b=a[' is only an assignment.

#!/usr/bin/env python#-*-coding:utf-8-*-# Filename:reference.py__author__ = ' Jerryqiu ' print ' simple assignment ' Shoplist = [' Apple ', ' mango ', ' carrot ', ' banana ']mylist = Shoplistdel mylist[0]print ' shoplist is: ', Shoplistprint ' mylist is: ', Mylistprint ' Copy by making a full slice ' mylist= shoplist[:]del shoplist[0]print ' shoplist are: ', Shoplistprint ' Mylis T is: ', mylist

$python reference.pysimple assignmentshoplist is: [' mango ', ' carrot ', ' banana ']mylist are: [' mango ', ' carrot ', ' banana '] Copy by making a full sliceshoplist are: [' carrot ', ' banana ']mylist is: [' mango ', ' carrot ', ' banana ']

　　

Python Copy and assign value