On Jun 3, 11:56 am, a... at mac.com (Alex Martelli) wrote: > Allowing a trailing ! in method names has no such cost, because in no > language I know is ! used as a "postfix unary operator"; Some math oriented languages use it as the factorial function. E.g., Mathematica: In[1] := 10! Out[1]= 3628800 (The more you know....) Carl Banks