Minimize Callable classes

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I wonder if it could be possible to allow callable classes.  I tried this
code and get the error:


$ python fit.py 
Traceback (most recent call last):
  File "fit.py", line 18, in ?
    m = minuit.Minuit(f,x=10,y=10)
AttributeError: func instance has no attribute 'func_code'



class func:
    def __init__(self,x0,y0):
        self.x0 = x0
        self.y0 = y0
        self.co_varnames = ("x","y")

    def __call__(self,x,y):
        return (x - self.x0) ** 2 + (y - self.y0) ** 2

import minuit

f = func(2,3)

m = minuit.Minuit(f,x=10,y=10)

Original issue reported on code.google.com by [email protected] on 10 Nov 2008 at 7:04