Well, I think, both of us understands that any reference isn't about any
sort of a language. It's about REGISTER = [ALU, FPU, ...]
That's why reference inevitable.
While You're talking about Python - You're talking ONLY about
interpreter for a BYTEcode
Alas, CPU don't speak BYTEcode but BITcode.
So, Python can't allocate memory for CPU only for interpreter, which
will ask allocation through underlying-C-language.
Do I wrong?
CPU have compiler for Python?
As well as multithreading, for instance, in Python goes to a single
interpreter, but in C - to multiple cores of CPU. So Python doesn't have
REAL multithreading, but C - does.
And in my case by means of C-rules Python allocates FOR-loop's list as a
reference. And that mistake wastes each iteration of FOR-loop in
unnecessary RE-evaluation of initial-list IN LOGIC STATEMENT, which must
be created only once. Any INITIATIONS make once. 'Cause it sucks
CPU-memory-allocation-cycle.
Does this point make sense for You?
Joel Goldstick 於 08/06/2015 03:57 PM 寫道:
On Thu, Aug 6, 2015 at 4:34 AM, John Doe <z2...@bk.ru> wrote:
Can You, please, elaborate this "..Passing in Python is different than in C
or other languages..."
I hesitate, because this question is usually the fuel of flaming wars.
So in short:
C can pass a value or a reference to a value (the address of the place
in memory where the value is stored)
Python passes an object -- everything in python is an object. If the
object is mutable, and the function mutates it, those results will be
seen outside the function. If the object is immutable, and the
function tries to change its value, a new object is created with the
new value. Its name is the name given in the parameter list -- not
the name that the function was called with. When the function
completes, that object is lost since the outer scoped named object
wasn't changed.
'Cause as far as I know - default major Python's implementation CPython is
written in C.
What language is used for its implementation has nothing to do with
its own specification.
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