How to assign without instantiating

Question

I need to remove a item from a list and then add it again in the same position, like this:

x = ['a','b','c']
x2 = ['a','b','c']
x.remove(x[1])
...

x = x2 
x.remove(x[0])
...

#expected result:
x == ['b','c'] #True
x2 == ['a','b','c'] #True

#real result 

1. example == True
2. example == False

That happens because when I use x = x2 I created an instance of x2 on x, but I just wanna assign x2 raw value to x. How can I do it?

You mean you want to make a copy of `x2` and assign it to `x`? — Carcigenicate, Jan 01 '19 at 01:10
"That happens because when I use x = x2 I created an instance of x2 on x," no, that isn't at all what is happening. In fact, the fundamental issue is that you are assigning *the same value* — juanpa.arrivillaga, Jan 01 '19 at 01:17
Read the following: https://nedbatchelder.com/text/names.html — juanpa.arrivillaga, Jan 01 '19 at 01:18

score 1 · Accepted Answer · answered Jan 01 '19 at 01:11

1

Replace this line:

x=x2

With:

x=x2.copy()

Or with:

x=x2[:]

For it to work.

answered Jan 01 '19 at 01:11

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How to assign without instantiating

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