While I think that the paragraph is correct still there is IMO indeed the (low) risk of such a misunderstanding. The problem is that "the statement executes" can IMO easily be understood as "the statements execute" (especially if your background includes only languages where there's no multiple assignment) and the world "single" is also frequently used in phrases like "every single time" where can indeed denote a context of plurality. Adding "just" or "only" would be IMO an great improvement by focusing the attention on the key point, as it would be IMO better using "rightmost" instead of "right-hand" (in this case even saving a char ;-) )
Just two foreign cents -- http://mail.python.org/mailman/listinfo/python-list
