{"record":{"id":"3c2ddb65f61f8158","repo":"keras-team/keras","slug":"expected-tuple-or-dict-for-loop-vars-received","errorCode":null,"errorMessage":"Expected tuple or dict for `loop_vars`, Received: {type(loop_vars)}","messagePattern":"Expected tuple or dict for `loop_vars`, Received: (.+?)","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"keras/src/backend/openvino/core.py","lineNumber":1709,"sourceCode":"            packed = []\n            for item in template:\n                value, flat = pack_structure(item, flat)\n                packed.append(value)\n            return (\n                tuple(packed) if isinstance(template, tuple) else packed\n            ), flat\n        else:\n            return flat[0], flat[1:]\n\n    is_scalar_input = _is_scalar(loop_vars)\n\n    if is_scalar_input:\n        loop_vars = (loop_vars,)\n    elif isinstance(loop_vars, (list, np.ndarray)):\n        loop_vars = tuple(loop_vars)\n    else:\n        if not isinstance(loop_vars, (tuple, dict)):\n            raise ValueError(\n                \"Expected tuple or dict for `loop_vars`, \"\n                f\"Received: {type(loop_vars)}\"\n            )\n\n    flat_loop_vars = flatten_structure(loop_vars)\n    loop_vars_ov = [get_ov_output(var) for var in flat_loop_vars]\n\n    maximum_iterations = (\n        ov_opset.constant(-1, Type.i32).output(0)\n        if maximum_iterations is None\n        else get_ov_output(maximum_iterations)\n    )\n\n    trip_count = maximum_iterations\n    execution_condition = ov_opset.constant(True, Type.boolean).output(0)\n    loop = ov_opset.loop(trip_count, execution_condition)\n\n    shapes = [var.get_partial_shape() for var in loop_vars_ov]","sourceCodeStart":1691,"sourceCodeEnd":1727,"githubUrl":"https://github.com/keras-team/keras/blob/7a34a03db60bf60042242d6a556fc3be119046a5/keras/src/backend/openvino/core.py#L1691-L1727","documentation":"Error \"Expected tuple or dict for `loop_vars`, Received: {type(loop_vars)}\" thrown in keras-team/keras.","triggerScenarios":"Thrown at keras/src/backend/openvino/core.py:1709 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"}