I would suggest to use requests library or mechanize (or selenium if your stuck on javascript). RoboBrowser seems to have stalled development. The last update was 4 years ago and the whole project last one year total. It seems more like a college student project that he moved on. There is also more help for those libraries as they are more well known. I havent even heard about robobrowser until this thread. They are also more well developed and more features.
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