-----Original Message-----
From: Aaron Brady [mailto:castironpi@comcast.net]
Sent: Wednesday, May 09, 2007 5:35 PM
Could easily incorporate, as shown here.
#sample function with default args
def f( a,b=None,c='abc' ):
print a,b,c
#customizer
default= object()
def call_wrapper( callable, *args, **kwargs ):
args=list(args)
for i,j in enumerate( args ):
if j is default:
offset= callable.func_code.co_argcount-\
len(callable.func_defaults)
args[i]= callable.func_defaults[i-offset]
return callable( *args,**kwargs )
#the uniform calls
call_wrapper( f,0,default,'def' )
call_wrapper( f,0,'somebody',default )
-----Original Message-----
From: Aaron Brady [mailto:castironpi@comcast.net]
Sent: Wednesday, May 09, 2007 4:56 PM
To: 'Aaron Brady'; 'Josiah Carlson'; 'python-ideas@python.org'
Subject: RE: [Python-ideas] parameter omit
You can almost do,
b=f.func_defaults[1],
but you still have to know where the defaults start. Very small what I'm
missing.
-----Original Message-----
From: python-ideas-bounces@python.org
[mailto:python-ideas-bounces@python.org] On Behalf Of Aaron Brady
Sent: Wednesday, May 09, 2007 4:50 PM
To: 'Josiah Carlson'; python-ideas@python.org
Subject: Re: [Python-ideas] parameter omit
No, still not uniform. Cases might be rare, even syntactic sugar maybe.
if something huge:
b=<def>
more huge
if something else:
b=mything
still more
f(a,b,c).
-----Original Message-----
From: Josiah Carlson [mailto:jcarlson@uci.edu]
Sent: Wednesday, May 09, 2007 4:51 PM
To: Aaron Brady; python-ideas@python.org
Subject: Re: [Python-ideas] parameter omit
"Aaron Brady" <castironpi@comcast.net> wrote:
Actually, I wanted a uniform way to call f. f(a,b,c) for both cases if
b
can equal <def>.
f(a, b=...) #default c
f(a, c=...) #default b
- Josiah
-----Original Message-----
From: Steven Bethard [mailto:steven.bethard@gmail.com]
Sent: Wednesday, May 09, 2007 3:45 PM
To: Aaron Brady
Cc: python-ideas@python.org
Subject: Re: [Python-ideas] parameter omit
On 5/9/07, Aaron Brady <castironpi@comcast.net> wrote:
Is it possible to signal to a parameter to use its default?
def f( a, b=None, c='' ):...
f( 123, <def>, 'abc' )
f( 123, ObjA, <def> )
In this case, it's pretty easy::
f(123, c='abc')
f(123, ObjA)
STeVe
--
I'm not *in*-sane. Indeed, I am so far *out* of sane that you appear a
tiny blip on the distant coast of sanity.
--- Bucky Katt, Get Fuzzy
Aaron Brady