Nested dictionary comprehension python

Question

I\'m having trouble understanding nested dictionary comprehensions in Python 3. The result I\'m getting from the example below outputs the correct structure without error,

Answer 1

{ok: {ik: myfunc(iv) for ik, iv in ov.items()} for ok, ov in od.items()}  

where
ok-outer key
ik-inner key
ov-outer value
iv-inner value od-outer dictionary This is how i remember.