General impression:<br><br>? and ! are allowed in Ruby, which like Python is a multi-paradigm language.  Despite the availability (from the beginning) they are still inconsistently used in Ruby.  I attribute this to convention -- Ruby, like any language, borrows from the experience of other programmers and other interfaces.  Python is like Ruby but with years of extra history.  We can never apply ? and ! consistently, and without consistency they are random notations added according to the original programmer&#39;s history (i.e., when they came from Lisp they&#39;ll use the punctuation, and when they come from other languages they&#39;ll use nothing).<br>

<br>So... nice idea, but a couple decades too late?<br clear="all"><br>-- <br>Ian Bicking  |  <a href="http://blog.ianbicking.org">http://blog.ianbicking.org</a><br>