OrderingFilter causing Parser error: unknown tag when using OpenAPI schema

[dennishylau]

Specifically, the description field generated was problematic.
e.g.

/api/{version}/business/brand/:
    get:
      operationId: listBrands
      parameters:
      ...
      - name: ordering
        required: false
        in: query
        description: &id001 !!python/object/apply:django.utils.functional._lazy_proxy_unpickle
        - !!python/name:django.utils.translation.gettext ''
        - !!python/tuple
          - Ordering
        - {}
        - !!python/name:builtins.str ''
        schema:
          type: string

So when swagger-ui is loading the schema, this shows up

Errors
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Parser error on line 638
unknown tag !<tag:yaml.org,2002:python/name:django.utils.translation.gettext>

To get around this, I must set the label attribute when

ordering = OrderingFilter(fields=(...), label='Hello World')

Thank you.

[carltongibson]

Ah, yes. We’ll need a str() somewhere.

[legioz]

This same error is occurring with my project.

[carltongibson]

Moving to #1432

[niksite]

The ordering parameter is also included in the schema twice for some reason.