Ask HN: Choosing a Python framework for web development?

Hi all, I'm new to programming and started developing software using Python around 6 months back. I also know a bit of C#, C, JavaScript, HTML and CSS. Not an expert in any thing, still learning. Also, I'm not very good at Regular Expressions--this was a new-year resolution ;) Now I've come across a dilemma and find myself completely stumped. I cannot figure what Python web-framework I should choose to start developing web-based software using Python. I've looked at the websites of Django, Pylon, CherryPy and WebPy--and I couldn't decide ;( Considering my naive skills I intend to choose a lightweight framework and a framework with which I can easily use JavaScript for client-side scripting (my biggest fear). I think I'm in a company of some very smart people here so I will really appreciate if you can help me in choosing an appropriate framework--considering my skill-set. Thanks in advance, fellas.