a clean way to define dictionary

[Jeremy Yallop]

Alexander Schmolck wrote:
> Skip Montanaro <skip at pobox.com> writes:
>> I don't think it would normally be used that way.  Instead, consider you
>> have a preexisting dictionary and want a copy:
>> 
>>     >>> d1 = {'foo':1, 'bar':'sean'}
>>     >>> d2 = dict(**d1)
>>     >>> d2 == d1
>>     True
>> 
>> That's a one-liner where the equivalent
>> 
>>     d2 = {}
>>     d2.update(d1)
>> 
>> is a two-liner and likely slower.
> 
> Uhm,
> 
>      d2 = d1.copy() ?

  d2 = dict(d1)

Jeremy.