SearchResource.list `type` accepts list/tuple/set but is not comma-joined before request

[chirag127]

Problem

SearchResource.list type-hints type as Optional[Union[str, list, tuple, set]] and its docstring says "The value is a comma-separated list of resource types", but the value is passed straight into the params dict without normalization. When a caller passes a list, requests serializes it as repeated query params (type=video&type=channel), while YouTube Data API v3 expects a single comma-separated type=video,channel.

Steps

1. pip install python-youtube==0.9.9
2. from pyyoutube import Client; c = Client(api_key="...")
3. c.search.list(q="news", type=["video", "channel"], max_results=10)

Expected

Request URL contains type=video%2Cchannel (single param, comma-joined), consistent with sibling params like parts which go through enf_parts.

Actual

Request URL contains type=video&type=channel (two params). The API silently ignores the second and applies only type=video.

File cite

pyyoutube/resources/search.py:233 — "type": type, bypasses enf_comma_separated. Compare to pyyoutube/resources/search.py:216 where parts is normalized via enf_parts. Signature declaring list/tuple/set support: pyyoutube/resources/search.py:42. Docstring: pyyoutube/resources/search.py:144-147.

Environment

python-youtube 0.9.9, requests >=2.28.0,<3.0.0, Python 3.9-3.14 per pyproject.toml.

Suggested fix

Wrap with enf_comma_separated(field="type", value=type) before insertion into params.

Thanks for maintaining sns-sdks/python-youtube!