Chris Angelico wrote:
On Tue, Sep 26, 2017 at 5:35 AM, Marko Rauhamaa <ma...@pacujo.net> wrote:
Chris Angelico <ros...@gmail.com>:
On Tue, Sep 26, 2017 at 12:26 AM, Marko Rauhamaa <ma...@pacujo.net> wrote:
Sorry, that was my bad in the terminology. But where do you get that
all Python expressions evaluate to pointers?
What do they evaluate to if not pointers? Anton's "identities" would
work, too. "Address" would do, as well. I have previously proposed the
term "leash." Call it "link" or "handle" or "arrow" if you want to.
The term used isn't important. What's important is to understand that
each expression and subexpression produces and operates on pointers.
They evaluate to objects. Not to pointers to objects. Not to
references to objects. To objects. Expressions evaluate to actual
objects, and when you assign "name = value", you bind the name to the
object that value evaluates to.
ChrisA
And when you pass a reference r to a function, a copy of the reference
is passed. So even if you reassign *that* copy of r to refer to another
object, upon return, r still still refers to whatever it did
originally. ::: case closed :::, I think.
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