Re: less verbose Python lib

Compiling the list is difficult for me as the items take a long time
to be computed (the emitter is supposed to be part of a numerical
code), so I wouldn't want to have to wait for the last item to arrive
until they're printed all together.



On Tue, Jun 12, 2012 at 10:52 PM, Dennis Lissov <[email protected]> wrote:
> Hello Nico,
>
> in Python YAML is typically mapped directly to the trees of objects.
> The YAML sequence is mapped to the Python list, so using
>
>    yaml.dump(['eggs', 'bread', 'milk'], default_flow_style=False)
>
> and if the equivalent output of '[eggs, bread, milk]' is acceptable,
> the keyword argument may also be omitted. Unless you need to
> explicitly deal with the representation and serialization steps, it's
> the easiest way to deal with YAML in Python.
>
> Good luck,
> Dennis.
>
> On Tue, Jun 12, 2012 at 11:39 PM, Nico Schlömer
> <[email protected]> wrote:
>> Hi all,
>>
>> in C++, typical YAML usage looks like
>>
>> ============ *snip* ============
>> YAML::Emitter out;
>> out << YAML::BeginSeq;
>> out << "eggs";
>> out << "bread";
>> out << "milk";
>> out << YAML::EndSeq;
>> ============ *snap* ============
>>
>> while the same thing in Python is (as far as I know)
>> ============ *snip* ============
>> print yaml.emit([yaml.StreamStartEvent(),
>>                 yaml.DocumentStartEvent(),
>>                 yaml.SequenceStartEvent(anchor=None, tag=None, implicit=True),
>>                 yaml.ScalarEvent(anchor=None, tag=None,
>> implicit=(True, False), value=u'eggs'),
>>                 yaml.ScalarEvent(anchor=None, tag=None,
>> implicit=(True, False), value=u'bread'),
>>                 yaml.ScalarEvent(anchor=None, tag=None,
>> implicit=(True, False), value=u'milk'),
>>                 yaml.SequenceEndEvent()
>>               ])
>> ============ *snap* ============
>>
>> Is there any way to make this less verbose? (I don't even know why I
>> need all these options.)
>>
>> Cheers,
>> Nico
>>
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