From: cross@spitfire.i.gajendra.net   
      
   In article <108k9de$1f69$1@dont-email.me>,   
   Simon Clubley   wrote:   
   >On 2025-08-25, Arne Vajhøj  wrote:   
   >> On 8/24/2025 10:34 PM, Lawrence D?Oliveiro wrote:   
   >>>   
   >>> One trick they missed was allowing interval comparisons like this:   
   >>>   
   >>>      if "0" <= ch <= "9" or "a" <= ch <= "f" or "A" <= ch <= "F" :   
   >>>   
   >>> I think only Python has that.   
   >>   
   >> Yes.   
   >>   
   >> But note that the feature is not "interval comparison" but   
   >> "chaining comparison operators".   
   >>   
   >> The above example is very readable and makes sense.   
   >   
   >Just don't try getting that code past me without first having used   
   >brackets around the subexpressions. :-)   
   >   
   >> But it is less obvious with other operators.   
   >>   
   >> Example:   
   >>   
   >> 4 == 4 == True   
   >>   
   >> Most languages (possible all exception Python) evaluate   
   >> that to True, because it is treated like:   
   >>   
   >> (4 == 4) == True   
   >>   
   >> But it is False in Python because it is treated like:   
   >>   
   >> (4 == 4) and (4 == True)   
   >>   
   >> Which feels less natural.   
   >   
   >And _this_ is an example of why Simon's policy of backets around   
   >everything makes it explicitly clear what was intended. :-)   
      
   *At some expense for expert users.   
      
   Which again, comes back to what I think is _actually_ the   
   interesting question: who do we write these programs for?   
      
   	- Dan C.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)