Python list updating itself
list, python, python-2.7
Solution
The variable `listB` is nothing but a reference to `listA`. If you want a copy of `listA` you can issue
listB = listA[:]
for a shallow copy or
import copy
listB = copy.deepcopy(listA)
for a deep copy. Here is a good read on the topic.
Problem
Well this is kind of an elementary question, but here it goes: Consider the following code: ``` listA = ['a','b','c'] listB = listA listB.pop(0) print listB print listA ``` The output comes as: ``` ['b','c'] ['b','c'] ``` However, shouldn't the output be: ``` ['b','c'] ['a','b','c'] ``` What exactly is happening here? And how could I get the expected output? Thanks in advance :)