Is there a way to create a custom dictionary in python

Question

Hello I was wondering if there was an existing version of an idea I had where you can create a custom dictionary like so:

MyCustomDict = {'value':'values':'valued','value1':'value2':'value3'}

Then you can access all of the following like so

MyCustomDict['1'] # 'value'
MyCustomDict['1a'] # 'values'
MyCustomDict['1b'] # 'valued'
MyCustomDict['2'] # 'value1'
MyCustomDict['2a'] # 'value2'
MyCustomDict['2b'] # 'value3'

Then if they go over 26 elements they can be represented as uppercase. Is this already made and if not is it possible to create?

Answer 1

MyCustomDict = {'value':{'values':'valued'},
               'value1':{'value2':'value3'}}

or

MyCustomDict = {'value':[values],
                   'value1':[v1, v2, v3]}

or

MyCustomDict = {'value':[{'value1':'valued'}, {'value2':'valued'}]}