3b440235e237ef59ec5763c413e7f4292dab5d79,keras/backend/cntk_backend.py,,is_keras_tensor,#Any#,299

Before Change

def is_keras_tensor(x):
    if not isinstance(x, (C.variables.Constant,
                          C.variables.Variable,
                          C.variables.Parameter,
                          C.ops.functions.Function)):
        raise ValueError("Unexpectedly found an instance of type `" + str(type(x)) + "`. "
                         "Expected a symbolic tensor instance.")
    return hasattr(x, "_keras_history")

After Change

def is_keras_tensor(x):
    if not is_tensor(x):
        raise ValueError("Unexpectedly found an instance of type `" +
                         str(type(x)) + "`. "
                         "Expected a symbolic tensor instance.")

Instances