def deserialize(serialized_content):
    try:
        deserialized_content = base64.decodestring(serialized_content)
    except Exception as e:
        raise UnableToDeserializeError(serialized_content % "Couldn't deserialize base64 content: %s", e)
    return deserialized_content
dataset/ETHPy150Open weblabdeusto/weblabdeusto/server/src/weblab/experiment/util.py/deserialize/swapped operands of `%`