Initialise dictionary of dictionary

[Dave Angel]

 Ayushi Dalmia <ayushidalmia2604 at gmail.com> Wrote in message:
> I need to initialise a dictionary of dictionary with float values. I do not know the size of the dictionary beforehand. How can we do that in Python
> 

Do what?  There's no concept of pre-initializing a dictionary, and
 there's no specific limit to its eventual size.

Unsure of what the floats have to do with it. Perhaps you meant
 float KEYS. 

-- 
DaveA