Handling 2.7 and 3.0 Versions of Dict

Gabriel Genellina gagsl-py2 at yahoo.com.ar
Fri Sep 2 18:36:17 CEST 2011


En Wed, 31 Aug 2011 22:28:09 -0300, Travis Parks <jehugaleahsa at gmail.com>  
escribió:

> On Aug 31, 7:37 pm, Gregory Ewing <greg.ew... at canterbury.ac.nz> wrote:
>> Ian Kelly wrote:
>> > if sys.version_info < (3,):
>> >     getDictValues = dict.itervalues
>> > else:
>> >     getDictValues = dict.values
>>
>> > (which is basically what the OP was doing in the first place).
>>
> My problem was that I didn't understand the scoping rules. It is still
> strange to me that the getValues variable is still in scope outside
> the if/else branches.

Those if/else are at global scope. An 'if' statement does not introduce a  
new scope; so getDictValues, despite being "indented", is defined at  
global scope, and may be used anywhere in the module.

-- 
Gabriel Genellina




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