Python - how can I dynamically remove a method from a class -- i.e. opposite of setattr

python setattr
jononomo picture jononomo · May 22, 2013 · Viewed 14.8k times · Source

I don't know if I have a good design here, but I have a class that is derived from unittest.TestCase and the way I have it set up, my code will dynamically inject a bunch of test_* methods into the class before invoking unittest to run through it. I use setattr for this. This has been working well, but now I have a situation in which I want to remove the methods I previously injected and inject a new set of methods. How can I remove all the methods in a class whose names match the pattern test_*?

Answer

BrenBarn picture BrenBarn · May 22, 2013

It's called delattr and is documented here.

Related questions

Using setattr() in python

I am looking for someone to explain the basics of how to use, and not use setattr(). My problem arose trying to use one class method/function to return data that is then put in another method/function. Perhaps a …

Read More
How to use __setattr__ correctly, avoiding infinite recursion

I want to define a class containing read and write methods, which can be called as follows: instance.read instance.write instance.device.read instance.device.write To not use interlaced classes, my idea was to overwrite the __getattr__ and __…

Read More
How can I dynamically create class methods for a class in python

If I define a little python program as class a(): def _func(self): return "asdf" # Not sure what to resplace __init__ with so that a.func will return asdf def __init__(self, *args, **kwargs): setattr(self, 'func', classmethod(self._func)) …

Read More