MemPalace/mempalace · error · KeyError

unknown source adapter {name!r}; available: {sorted(_registr

Error message

unknown source adapter {name!r}; available: {sorted(_registry.keys())}

What it means

Error "unknown source adapter {name!r}; available: {sorted(_registry.keys())}" thrown in MemPalace/mempalace.

Source

Thrown at mempalace/sources/registry.py:124

        return _registry[name]
    except KeyError as e:
        raise KeyError(f"unknown source adapter {name!r}; available: {available_adapters()}") from e


def get_adapter(name: str) -> BaseSourceAdapter:
    """Return a long-lived instance of the named adapter.

    Instances are cached per-name; repeated calls return the same object.
    Call :func:`reset_adapters` in tests that need isolation.
    """
    _discover_entry_points()
    with _lock:
        inst = _instances.get(name)
        if inst is not None:
            return inst
        cls = _registry.get(name)
        if cls is None:
            raise KeyError(
                f"unknown source adapter {name!r}; available: {sorted(_registry.keys())}"
            )
        inst = cls()
        _instances[name] = inst
        return inst


def reset_adapters() -> None:
    """Close and drop all cached adapter instances (primarily for tests)."""
    with _lock:
        for inst in _instances.values():
            try:
                inst.close()
            except Exception:
                logger.exception("error closing adapter during reset")
        _instances.clear()

View on GitHub (pinned to 06cb6987f0)

Solutions

1. Choose one of the listed registered adapters

When it happens

Trigger: Thrown at mempalace/sources/registry.py:124 when the library encounters an invalid state.

Common situations: Adapter name not present in the registry.

AI-assisted analysis of MemPalace/mempalace@06cb6987f0 (2026-08-15). Data as JSON: /api/errors/987f62809eaf6eb8. Report an issue: GitHub.