On Tue, 22 Mar 2005 21:43:48 +0100, Bruno Desthuilliers
<[EMAIL PROTECTED]> wrote:
>Ron a �crit :
>(snip)
>>>>def dfv( arg = value):
>>
>> return arg
> >
> >>> def dfv( arg = value):
>... return arg
>...
>Traceback (most recent call last):
> File "<stdin>", line 1, in ?
>NameError: name 'value' is not defined
>
>And sorry, but -1 for using exec here.
Yes, I cought that myself. So...
try: z=z
except: z=0
or
if 'z' not in locals():
z = 0
Ok, thinking in more incremental terms...
Why should a function not create a local varable of an argument if the
varable doesn't exist and a default value is given?
So when:
Def dfv( v=0):
return v
>>dfv()
0 ;it creates the local copy in this case.
>>a = 25
>>dfv(a)
25 ;It used the given value as expected.
>>dfv(b)
Traceback (most recent call last):
File "<pyshell#4>", line 1, in -toplevel-
dfv(b)
NameError: name 'b' is not defined
Why not let it set the local varable v to the default as it does when
no varable is specified?
A function without a default would still give an error as expected.
:)
Ok no exec, but what about the general syntax?
value = keyword (inputargs, command, outputargs)
I was thinking if it can be done with standard tuples, it has the
potential to be passed around easily and work from lists and
dictionaries.
Ron
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