[$] Discussing PEP572

<p>As is often the case, the python-ideas mailing list hosted a discussionabout a Python Enhancement Proposal (PEP) recently. In some sense, thisparticular PEPwas created to try to gather together the pros and cons of afeature idea that regularly crops up: statement-local bindings for variablenames. But the discussion of the PEP went in enough different directionsthat it led to calls for an entirely different type of medium in which tohave those kinds of discussions.