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From: "R. Michael Weylandt" <michael.weylandt@gmail.com>
Date: Sun, 16 Jun 2013 19:53:56 +0100
Subject: Re: A certainl part of an if() structure never gets executed.
To: Ferrous Cranus <support@superhost.gr>
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On Sun, Jun 16, 2013 at 2:47 PM, Ferrous Cranus <support@superhost.gr> wrot=
e:
> On 16/6/2013 2:13 =EC=EC, Jussi Piitulainen wrote:
>>
>> If, instead of the above, you have
>>
>> a =3D 6
>> b =3D a
>> b =3D 5
>>
>> you will find that b =3D=3D 5 and a =3D=3D 6. So b is not the same as a.=
 Else
>> one would have changed when the other changed. I would say that a and
>> b are different variables. They had the same value, briefly.
>
>
> If they were different variables then they would have different memory
> addresses and they would act like two different objects.
>
> But... both a and b are for a fact mappings for the same memory address a=
s
> seen form the following command.
>
>>>> id(a) =3D=3D id(b)
> True
>
> They are like the same object with 2 different names.

This will depend on when the test is run:

a =3D 6
b =3D a
a is b # True

b =3D 5
a is b # False

The latter is false because the binding of "b" to the int 6 was broken
in order to bind b to the int 5.

I might also suggest you restrain from trying to correct respondents
on these matters until you yourself understand them. It's only polite.

Michael