#29441: Allow dumpdata in YAML using ruamel.yaml rather than PyYaml.
-------------------------------------+-------------------------------------
Reporter: Rémy Hubscher | Owner: Daniel
Type: | Rios
Cleanup/optimization | Status: closed
Component: Core | Version: 2.0
(Serialization) |
Severity: Normal | Resolution: wontfix
Keywords: | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Changes (by Daniel Rios):
* status: assigned => closed
* resolution: => wontfix
Comment:
Hi.
First, reasons should be provided as to why something is recommended. In
this case, ruaml is recommended because it is, as far as my research has
taken me, the only other python yaml library out there.
The preference for the pyyaml module is baked into
`django/core/serializers/__init__.py` in the `BUILTIN_SERIALIZERS`
constant at
https://github.com/django/django/blob/5cc81cd9eb69f5f7a711412c02039b435c393135/django/core/serializers/__init__.py#L26
I don't think it makes sense to have another built-in serializer. However,
there is a workaround:
Django does offer the possibility to use your own serializer in the
docstring of the same file
(https://github.com/django/django/blob/5cc81cd9eb69f5f7a711412c02039b435c393135/django/core/serializers/__init__.py#L10),
but the actual user-facing documentation seems to be nonexistent.
I was able to, however, overwrite the preference for pyyaml by installing
ruamel and with `SERIALIZATION_MODULES` in settings.py as follows:
{{{
SERIALIZATION_MODULES = {
'yaml': 'ruamel.yaml.serializer'
}
}}}
I was unable to get it running because ruaml (even though based on pyyaml)
is written a bit different to the way Django handles serializers but the
fact that it does support other serializers means that it would be
possible to get ruaml to work.
A better idea would be to create a third party package `django-ruaml-
serializer` that patches the differences in ruaml to work with the
existing django serializer.
--
Ticket URL: <https://code.djangoproject.com/ticket/29441#comment:3>
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