On Oct 30, 2008, at 6:38 PM, greg wrote:
The distinction isn't about parameter passing, though, it's
about the semantics of *assignment*. Once you understand
how assigment works in Python, all you need to know then
is that parameters are passed by assigning the actual
parameter to the formal parameter. All else follows from
that.
This holds for *all* languages that I know about, both
static and dynamic.
Just to be complete, it only holds in "ByVal" mode (for languages that
have both ByVal and ByRef modes, like VB.NET). A call-by-value
parameter pass is equivalent to an assignment to the formal parameter,
as you say. A call-by-reference parameter is not.
This is yet another simple way to see what type of parameter passing
Python uses.
Once you know how assignment works in
the language concerned, then you know how parameter
passing works as well. There is no need for new terms.
Agreed.
Best,
- Joe
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