HKUDS/nanobot · error · ValueError

{cls.__name__} must set provider_name

Error message

{cls.__name__} must set provider_name

What it means

Error "{cls.__name__} must set provider_name" thrown in HKUDS/nanobot.

Source

Thrown at nanobot/providers/image_generation.py:252

    return f"data:{mime};base64,{encoded}"


# ---------------------------------------------------------------------------
# Registry
# ---------------------------------------------------------------------------

_IMAGE_GEN_PROVIDERS: dict[str, type[ImageGenerationProvider]] = {}


def register_image_gen_provider(cls: type[ImageGenerationProvider]) -> None:
    """Register an image provider at import time only.

    The registry is populated by module side effects so provider discovery
    stays lazy and consistent across the process.
    """
    name = cls.provider_name
    if not name:
        raise ValueError(f"{cls.__name__} must set provider_name")
    _IMAGE_GEN_PROVIDERS[name] = cls


def get_image_gen_provider(name: str) -> type[ImageGenerationProvider] | None:
    return _IMAGE_GEN_PROVIDERS.get(name)


def image_gen_provider_names() -> tuple[str, ...]:
    """Return registered image generation provider names in registry order."""
    return tuple(_IMAGE_GEN_PROVIDERS)


def image_gen_provider_configs(config: Config) -> dict[str, ProviderConfig]:
    providers_cfg = config.providers
    return {
        name: pc
        for name in _IMAGE_GEN_PROVIDERS
        if (pc := getattr(providers_cfg, name, None)) is not None

View on GitHub (pinned to 42f37dc4c0)

When it happens

Trigger: Thrown at nanobot/providers/image_generation.py:252 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of HKUDS/nanobot@42f37dc4c0 (2026-08-26). Data as JSON: /api/errors/1f839d9eba08a2cb. Report an issue: GitHub.