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Wilfred/dyn_prop.py

Last active November 22, 2023 16:01
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dynamically defined properties in python
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dyn_prop.py
def attach_dyn_prop(instance, prop_name, prop_fn):
"""Attach prop_fn to instance with name prop_name.
Assumes that prop_fn takes self as an argument.
Reference: https://stackoverflow.com/a/1355444/509706
"""
class_name = instance.__class__.__name__ + 'Child'
child_class = type(class_name, (instance.__class__,), {prop_name: property(prop_fn)})
instance.__class__ = child_class
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