Access Dict Via Dict.key

I created a dict source = {'livemode': False}. I thought it's possible to access the livemode value via source.livemode. But it doesn't work. Is there a way to access it that way?

Solution 1:

You can implement a custom dict wrapper (either a subclass of dict or something that contains a dict) and implement __getattr__ (or __getattribute__) to return data from the dict.

classDictObject(object):def__init__(self, data):
        self.mydict = data
    def__getattr__(self, attr):
        if attr inself.mydict:returnself.mydict[attr]
        returnsuper(self, DictObject).__getattr__(attr)

Solution 2:

I'm a beginner myself, but let me try and answer:

Say you have a dictionary:

dictionary = {"One": 1, "Two": 2, "Three": 3}

You can create a class with its keys like:

classDictKeys:
    One = 'One'
    Two = 'Two'
    Three = 'Three'

Here, One, Two and Three are class variables or attributes, which means if you create an object for this class:

key = DictKeys()

You can access all of those keys using the '.' (dot) operator.

key.One
>>'One'

Now just plug it where ever you want to access your dictionary!

dictionary[key.One]
>>1

I'm sure this isn't the best way, and class access is a tiny bit slower than dict access, but if you really want to, you can access all your keys with a dot using this method.

Solution 3:

The correct way to access a dictionary is how you proposed it:

source['livemode']