Steve Jorgensen wrote:
> gedizgursu＠gmail.com wrote:
> > m and n are lists or dicts or enumerates or classes
> > or anything it can be assigned like
> > following:
> > instead of :
> > m.a=n.a;
> > m.b=n.b;
> > m.c=n.c;
> > ...
> > I suggest:
> > a,b,c of m to n ;
> > I thought of this while writing something in javascript since I love pyhton
> > above
> > everything I can type (even more than native language sentences) I wanted
> > to post this
> > idea to here
> > It is my first idea while coding ...
> > In javascript, I was assinging a boundingBoxRect values to a div it was
> > going like
> > this:
> > adiv=document.createElement("div")
> > adiv.style.x=comp.x;
> > adiv.style.y=comp.y;
> > adiv.style.height=comp.height;
> > adiv.style.widht=comp.width;
> > I thought it is super waste of time instead of :
> > x,y,height,width of comp to adiv;
> > How about something like…
> setattrs(adiv.style, getattrs(comp, 'x y height width')
> where getattrs returns a dict and setattrs accepts a
> mapping?
> That could be done now without adding any new features to the language. These
> functions
> could be added to the standard library somewhere if they should become
> official
> things.
Those might not be the best names for those functions, but continuing with
those for now, here's an example implementation:
from functools import reduce
import re
def getattrs(obj, *names):
names = reduce(_concat_attr_names, names, [])
return {name: getattr(obj, name) for name in names}
def setattrs(obj, mapping):
for name, value in mapping.items():
setattr(obj, name, value)
def _concat_attr_names(x, y):
return x + re.split(r'\s+', y)
class Thing:
def __init__(self, color=None, size=None, shape=None):
self.color = color
self.size = size
self.shape = shape
def __repr__(self):
return (
f'Thing({repr(self.color)}, {repr(self.size)},'
f' {repr(self.shape)})')
thing_a = Thing('red', 'large', 'round')
thing_b = Thing('blue')
setattrs(thing_b, getattrs(thing_a, 'size shape'))
print(repr(thing_b)) # -> 'Thing('blue', 'large', 'round')
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