[Proto] Migrated from requests-async, missing proto signatures?

[YifeiY]

Hi,

I am trying to migrate requests-async code to httpx. requests-async accepts google.protobuf.pyext._message.ScalarMapContainer as the type for headers. However httpx doesn't seem to support this. In httpx._models.py#L850, it expects k, v pair which raises ValueError: too many values to unpack (expected 2) error.

My questions are,

1. Is it true that httpx dropped the support for proto when migrating from requests_async?
2. Is there a plan to add proto support in a future version?

[tomchristie]

We've never intentionally supported those - must have been an accident of the implementation.

You probably want to use headers=dict(...) to forcibly coerce it into a proper dict type.

[YifeiY]

Ok I see. Thanks

[YifeiY]

Is it possible to add proto support in the future?