[ python-Feature Requests-950644 ] Allow any lvalue for function definitions

[SourceForge.net]

Feature Requests item #950644, was opened at 2004-05-08 21:52
Message generated for change (Comment added) made by mcherm
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=355470&aid=950644&group_id=5470

Category: Parser/Compiler
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: David Albert Torpey (dtorp)
Assigned to: Nobody/Anonymous (nobody)
Summary: Allow any lvalue for function definitions

Initial Comment:
A definition like:

    def M(x):  return 2*x

is the same as:

    M = lambda x: 2*x

With the latter form, I can use any lvalue:

    A[0] = lambda x: 2*x
    B.f = lambda x: 2*x

But with the first form, you're locked into just using a 
plain variable name.  If this were fixed, it wouldn't 
break anything else but would be useful for making 
method definitons outside of a class definition:

This came up when I was experimenting with David 
MacQuigg's ideas for prototype OO.  I want to write 
something like:

    Account = Object.clone()
    Account.balance = 0
    def Account.deposit(self, v):
        self.balance += v

Unfortunately, the latter has to be written:

    def Account.deposit(self, v):
        self.balance += v
    Account.deposit = deposit



----------------------------------------------------------------------

>Comment By: Michael Chermside (mcherm)
Date: 2004-05-19 20:56

Message:
Logged In: YES 
user_id=99874

I'm highly dubious of this. I see little advantage to doing
the definition and storing the value in a single line,
mostly because I rarely want to do such a thing. Your
example may be convincing in Prothon or some relative, but
in Python the sensible way to do it is a normal method. I'd
suggest that if you want this idea to go anywhere that you
try posting this to c.l.py and seeing if you can drum up
interest and support there.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=355470&aid=950644&group_id=5470