[Python-checkins] python/dist/src/Lib sets.py,1.20,1.21

[tim_one@users.sourceforge.net]

Update of /cvsroot/python/python/dist/src/Lib
In directory usw-pr-cvs1:/tmp/cvs-serv4845/python/lib

Modified Files:
	sets.py 
Log Message:
Record a clue about why __or__ is not union, etc.


Index: sets.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/sets.py,v
retrieving revision 1.20
retrieving revision 1.21
diff -C2 -d -r1.20 -r1.21
*** sets.py	24 Aug 2002 07:33:06 -0000	1.20
--- sets.py	25 Aug 2002 17:10:17 -0000	1.21
***************
*** 142,145 ****
--- 142,150 ----
      # Each has an operator version (e.g. __or__, invoked with |) and a
      # method version (e.g. union).
+     # Subtle:  Each pair requires distinct code so that the outcome is
+     # correct when the type of other isn't suitable.  For example, if
+     # we did "union = __or__" instead, then Set().union(3) would return
+     # NotImplemented instead of raising TypeError (albeit that *why* it
+     # raises TypeError as-is is also a bit subtle).
  
      def __or__(self, other):