[Tutor] Interesting problem

[Smith, Jeff]

That's what I was looking for.  Although I couldn't get the below to
work, I went with a different mod of the original you gave:

    def get_props_as_dict(self):
        d = dict()
        for entry in dir(self.__class__):
            if isinstance(getattr(self.__class__, entry), property):
                d[entry] = getattr(self, entry)
        return d

Thanks!
Jeff

-----Original Message-----
From: tutor-bounces at python.org [mailto:tutor-bounces at python.org] On
Behalf Of Kent Johnson
Sent: Thursday, June 23, 2005 4:39 PM
To: Python Tutor
Subject: Re: [Tutor] Interesting problem


Smith, Jeff wrote:
> Here would be the usage:
> 
> myinst = MyClass()
> print myinst.getprops_as_dict()
> 
> would print
> 
> {'var1': 1, 'var2': 2, 'var3': 3}
> 
> Needless to say I want the instance values which might be different 
> for each instance.  I know that I could code it brute force, but I 
> want to be able to add properties without having to remember to update

> getprops_as_dict().

OK, so will a variation on my last recipe work? This looks for property
attributes of the class and gets the corresponding property on the
instance:
  def getprops_as_dict(self):
    return dict(pname, getattr(self, pname) 
      for pname in dir(self.__class__) 
        if isinstance(getattr(self.__class__, pname), property))
    )

Kent

> 
> For those who are interested, the dictionary created by
> getprops_as_dict() will be fed to string.Template.substitute
> 
> Jeff

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