On Sun, 04 Apr 2010 05:50:01 -0700, Ethan Furman wrote: >>>Yes, this has been fixed in later revisions, but I'm curious to know >>>what led you to believe that a list comprehension created a new scope. >>>I don't that was ever promised. >> >> >> Common sense about how programming languages should work? As confirmed >> by later revisions? > > Common sense? About *somebody else's* idea of how a programming > language should work?
Nevertheless, it is a common intuition that the list comp variable should *not* be exposed outside of the list comp, and that the for-loop variable should. Perhaps it makes no sense, but it is very common -- I've never heard of anyone being surprised that the for-loop variable is exposed, but I've seen many people surprised by the fact that list-comps do expose their loop variable. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
