How about this, not exactly robust, I know:
from threading import Timer
class Foo(object):
def __init__(self):
self.t = Timer(1,self.report)
self.t.start()
def report(self):
print 'I am known as',' and '.join([n for (n,o) in
globals().iteritems() if o is self])
f = Foo()
g = f
b = g
>> I am known as b and g and f
-Chris
On Fri, May 1, 2009 at 4:49 PM, Ofer Koren <[email protected]> wrote:
>
> I think this is actually impossible, since the assignment operation only
> happens AFTER the __init__ is done:
>
>
>
> class foo():
> def __init__(self):
> raise Exception("Error!")
>
> try:
> x = foo()
> except:
> pass
>
> print x
>
> # Error: name 'x' is not defined
>
>
>
> And even if you were able to get it to work, what would you expect would
> happen here?
>
>
> >>> f = foo()
> I'm assigned to 'f'!
> >>> x = f
> I'm also assigned to 'x'?...
>
>
> or here?
>
> >>> d = {'a' : [1,2,3, foo()]}
> "I'm assigned to the 4th element in a list within dictionary 'd'?..."
>
>
>
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of AKEric
> Sent: Friday, May 01, 2009 10:49 AM
> To: python_inside_maya
> Subject: [Maya-Python] Re: object query assigned variable name?
>
>
> Mainly I'm just trying to get a better grasp on the limits of the
> language. There is so much 'built in' to Python, I sometimes will
> find a gem that I was previously unaware of.
>
> To me, it seems obvious that an object should know the string var of
> the pointer variable (since the variable 'name' is very well aware of
> what memory location it's referencing), but recently been told on
> other forums this is basically impossible. Which is just as valuable
> to know imo :)
>
> thanks
>
> On May 1, 10:26 am, John Riddle <[email protected]> wrote:
> > Maybe I'm not understanding the need for this... or how you are intending
> to
> > use it, but if it's going to be hardcoded is it possible to just pass
> > itself?? Maybe I'm oversimplifying this so don't laugh at me! haha
> >
> > class foo():
> > def __init__(self, instancedVarName):
> > self.var = instancedVarName
> > print "I'm assigned to %s" % self.var
> >
> > >>> f = foo('f')
> > >>> I'm assigned to f
> >
> > Dumb answer?
> >
> > On Fri, May 1, 2009 at 9:20 AM, Eric Pavey <[email protected]>
> wrote:
> >
> > > I've passed this around some other groups, and I'm being told
> > > "probably not possible". But I thought I'd try here as well :) This
> > > isn't realized specifically to Maya-Python, but since I'm trying to
> > > implement this in a module I'll use in Maya, I think it's applicable
> > > for this list too :)
> >
> > > Given an object:
> >
> > > class Foo(object):
> > > def __init__(self):
> > > # stuff....
> >
> > > I'd like it to print, when instanced, something like this:
> >
> > > >>> f = Foo()
> > > I’m assigned to f!
> >
> > > But it seems prohibitively hard (based on my web and forum searches)
> > > for an object to know what variable name is has been assigned to when
> > > created. Querying 'self' in __init__ returns a memory location, not
> > > the variable name passed in.
> >
> > > If you're wondering why I'm trying to figure this out, this is just
> > > part of my continued learning of the language and pushing the bounds,
> > > to see what is possible ;)
> >
> > > Any thoughts?
> >
> >
>
>
> >
>
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http://groups.google.com/group/python_inside_maya
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