Problem in adding data to hash of hash

[dhivya m]

I need to create a hash of hash in python.
>>> x = {}
>>> y = 42
>>> z = 'first'
>>> x = {y:{z:'first value'}}
>>> x
{42: {'first': 'first value'}}

This is working but if I try to add another value, it is not working.. x is having only the current value..

>>> y = 45
>>> z = 'second'
>>> x = {y:{z:'Second value'}}
>>> x
{45: {'second': 'second value'}}

Now x is having only this value.

Can anyone please tell me how to add values..
Thank you..

[dwblas]

The second values overlays the first value ("z") as you can not have duplicate keys in a dictionary. This is poor style. Consider SQLite instead (getting started) as you can have duplicate entries and can select for a match on multiple fields.