Re: PyYAML yaml.load() appears to be alphabetizing input

On Sat, Apr 26, 2008 at 3:05 AM, Alexey Zakhlestin <[email protected]> wrote:

> If that application requires specific order of dictionary it is not
>  yaml-compliant.
>
>  in yaml, ordered structure is "sequence". So, if order is important,
>  you should put "key-value" pairs into the sequence. something like
>  this:
>
>  ---
>  - hellanzb-pass: changeme
>
> - hellanzb-host: localhost
>
>  - newzbin-interval: 8
>  - tvrage-interval: 300
>  ...

Thanks for all the help. I have done research all morning and have
found this page which describes my issue well:

http://pyyaml.org/ticket/29

However I am having some issues with the code example given:

>>> import yaml
>>> def omap_constructor(loader, node):
...     return loader.construct_pairs(node)
...
>>> yaml.add_constructor(u'!omap', omap_constructor)
>>> yaml.load('!omap { C: 1, B: 2, A: 1 }')
[('C', 1), ('B', 2), ('A', 1)]

How can I use this constructor but have it load the yaml from a file?

Thanks,

Erich

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