I'd like to be able to access some values of a python object using array-like syntax, ie:
obj = MyClass()
zeroth = obj[0]
first = obj[1]
Is this possible? If so, how do you implement this in the python class in question?
Add a comment
|
2 Answers
You need to write or override __getitem__, __setitem__, and __delitem__.
So for example:
class MetaContainer():
def __delitem__(self, key):
self.__delattr__(key)
def __getitem__(self, key):
return self.__getattribute__(key)
def __setitem__(self, key, value):
self.__setattr__(key, value)
This is a very simple class that allows indexed access to its attributes.
Comments
Use the __getitem__ and __setitem__ methods.
class MyClass:
def __getitem__(self, key):
return some_value_related_to_key
def __setitem__(self, key, value):
# set value (if needed)
