Dynamically creating properties?

Thu Oct 27 16:14:47 EDT 2011

In <a47fb589-520a-49ec-9864-cac1d7ea11eb at s9g2000yqi.googlegroups.com> Andy Dingley <dingbat at codesmiths.com> writes:
> How can I dynamically generate properties (or methods) and add them to
> my class? I can easily produce a dictionary of the required element
> names and their text values, but how do I create new properties at run
> time?

You can set dynamic attributes on class objects without any special
processing at all. Just do it, like so:
 class X(object):
 pass
 myx = X()
 myx.color = 'red'
 myx.food = 'french fries'
 myx.lucky_number = 7
Or, if you don't know the attribute name beforehand:
 setattr(myx, 'occupation', 'programmer') 
For methods, use an existing method name (without the trailing parentheses)
as the attribute value, like so:
 myx.method = float # assigns the built-in method float()
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