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I have a subclass and I want it to not include a class attribute that's present on the base class.
I tried this, but it doesn't work:
>>> class A(object): ... x = 5 >>> class B(A): ... del x Traceback (most recent call last): File "<pyshell#1>", line 1, in <module> class B(A): File "<pyshell#1>", line 2, in B del x NameError: name 'x' is not defined How can I do this?
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Python's del statement is used to delete variables and objects in the Python program. Iterable objects such as user-defined objects, lists, set, tuple, dictionary, variables defined by the user, etc. can be deleted from existence and from the memory locations in Python using the del statement.
The delattr() method is used to delete the named attribute from the object, with the prior permission of the object. Syntax: delattr(object, name) The function takes only two parameter: object : from which the name attribute is to be removed. name : of the attribute which is to be removed.
The pop() method removes an element at a given index, and will also return the removed item. You can also use the del keyword in Python to remove an element or slice from a list.
The del keyword in python is primarily used to delete objects in Python. Since everything in python represents an object in one way or another, The del keyword can also be used to delete a list, slice a list, delete a dictionaries, remove key-value pairs from a dictionary, delete variables, etc.
You can use delattr(class, field_name) to remove it from the class definition.
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You don't need to delete it. Just override it.
class B(A): x = None or simply don't reference it.
Or consider a different design (instance attribute?).
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