Lonnie> List comprehensions appear to store their temporary result in a Lonnie> variable named "_[1]" (or presumably "_[2]", "_[3]" etc for Lonnie> nested comprehensions)
Known issue. Fixed in generator comprehensions. Dunno about plans to fix it in list comprehensions. I believe at some point in the future they may just go away or become syntactic sugar for a gen comp wrapped in a list() call. Skip -- http://mail.python.org/mailman/listinfo/python-list