{"record":{"id":"a89407b8fc507d0e","repo":"keras-team/keras","slug":"invalid-value-for-argument-precision-expected-o","errorCode":null,"errorMessage":"Invalid value for argument `precision`. Expected one of ('16', '32', '64'). Received: precision={precision}","messagePattern":"Invalid value for argument `precision`\\. Expected one of \\('16', '32', '64'\\)\\. Received: precision=(.+?)","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"keras/src/backend/common/dtypes.py","lineNumber":216,"sourceCode":"        else:\n            raise ValueError(\n                \"Invalid value for argument `dtype`. Expected one of \"\n                f\"{ALLOWED_DTYPES}. Received: dtype={dtype}\"\n            )\n    return dtype\n\n\n@functools.lru_cache(maxsize=None)\ndef _resolve_weak_type(dtype, precision=\"32\"):\n    \"\"\"Resolve weak type by the precision of `backend.floatx()`.\"\"\"\n    extended_allowed_dtypes = set(ALLOWED_DTYPES).union(WEAK_TYPES)\n    if dtype not in extended_allowed_dtypes:\n        raise ValueError(\n            \"Invalid value for argument `dtype`. Expected one of \"\n            f\"{extended_allowed_dtypes}. Received: dtype={dtype}\"\n        )\n    if precision not in [\"16\", \"32\", \"64\"]:\n        raise ValueError(\n            f\"Invalid value for argument `precision`. Expected one of \"\n            f\"('16', '32', '64'). Received: precision={precision}\"\n        )\n    if dtype == \"bfloat16\":  # special case for bfloat16\n        dtype_indicator = \"f\"\n    else:\n        dtype_indicator = dtype[:1]\n\n    if dtype_indicator == \"b\":\n        return \"bool\"\n    elif dtype_indicator == \"i\":\n        return f\"int{precision}\"\n    elif dtype_indicator == \"u\":\n        return f\"uint{precision}\"\n    else:\n        return f\"float{precision}\"\n\n","sourceCodeStart":198,"sourceCodeEnd":234,"githubUrl":"https://github.com/keras-team/keras/blob/7a34a03db60bf60042242d6a556fc3be119046a5/keras/src/backend/common/dtypes.py#L198-L234","documentation":"Error \"Invalid value for argument `precision`. Expected one of ('16', '32', '64'). Received: precision={precision}\" thrown in keras-team/keras.","triggerScenarios":"Thrown at keras/src/backend/common/dtypes.py:216 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"7a34a03db60bf60042242d6a556fc3be119046a5","analyzedAt":"2026-08-25T21:25:25.994Z","schemaVersion":2},"datasetVersion":"2026-08-26T02:17:13.382Z"}