On Fri, 27 Feb 2009 23:55:43 -0000, Ethan Furman <et...@stoneleaf.us>
wrote:
I'm not Mark, but you did post to the whole group!
[snippety snip]
Specifically, how is a new name (pbr) different, in Python, from a new
name initialized as if by assignment (pbv)? It seems to me than you end
up with the same thing in either case (in Python, at least), making the
distinction non-existent.
def func(bar):
bar.pop()
Pass-by-reference:
foo = ['Ethan','Furman']
func(foo) # bar = foo
Pass-by-value:
foo = ['Python','Rocks!']
func(foo) # bar is new name for foo
With true pass-by-value, this comment is not true. Bar would be a copy
of foo, not a new name. What happens to bar is then not reflected in
foo (depending on how deep the copy is), which is the objective of
pass-by-value.
--
Rhodri James *-* Wildebeeste Herder to the Masses
--
http://mail.python.org/mailman/listinfo/python-list
