From: clubley@remove_me.eisner.decus.org-Earth.UFP   
      
   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. :-)   
      
   Simon.   
      
   --   
   Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP   
   Walking destinations on a map are further away than they appear.   
      
   --- SoupGate-Win32 v1.05   
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