Counterintuitive Python behavior

[Sean 'Shaleh' Perry]

On 17-Apr-2002 Max M wrote:
> dominikush at yahoo.com wrote:
> 
>> Who is wrong here: my intuition or Python (2.2)? If it's
>> my intuition, how can I train my thinking about Python's
>> execution model, so that my intuition get's better ;-)
> 
> Your intuition!
> 
> Objects like lists gets copied by reference. So Python behaves exactly 
> like it should.
> 

Or from another side:

a = [...]
b = a

b[n] = ...

and a gets updated.  values() returns the contents of the dictionary so you are
seeing the same type of behaviour.