class_util.py

Various utils dealing with classes.

class openmdao.utils.class_util.WeakMethodWrapper(obj, fname)

Bases: object

A class to contain a weak ref to a method.

weakerf.ref(obj.method) doesn’t work, so this class will wrap a weak ref to the method’s parent object, look the method up in that instance by name, and call it.

Parameters:

objobject

The instance object.

fnamestr

The name of the method.

Attributes:

_refweakerf

The weakref to the method’s owning instance.

__name__str

The name of the method.

__init__(obj, fname)

Initialize the wrapper.

openmdao.utils.class_util.overrides_method(method_name, obj, base)

Return True if the named base class method is overridden by obj.

Note that this only works if the overriding method is declared as part of the class, i.e., if the overriding method is added to the object instance dynamically, it will not be detected and this function will return False.

Parameters:

method_namestr

Name of the method to search for.

objobject

An object that is assumed to inherit from base.

baseclass

The base class that contains the base version of the named method.

Returns:

bool

True if the named base class method is overridden by obj’s class or some class in its class’ mro, otherwise False.