[Python-checkins] CVS: python/dist/src/Misc NEWS,1.147,1.148

[Guido van Rossum]

Update of /cvsroot/python/python/dist/src/Misc
In directory usw-pr-cvs1:/tmp/cvs-serv13008

Modified Files:
	NEWS 
Log Message:
Add more news about iterators.


Index: NEWS
===================================================================
RCS file: /cvsroot/python/python/dist/src/Misc/NEWS,v
retrieving revision 1.147
retrieving revision 1.148
diff -C2 -r1.147 -r1.148
*** NEWS	2001/05/01 20:45:30	1.147
--- NEWS	2001/05/01 20:54:30	1.148
***************
*** 4,7 ****
--- 4,19 ----
  Core
  
+ - Dictionary objects now support the "in" operator: "x in dict" means
+   the same as dict.has_key(x).
+ 
+ - Iterators were added; this is a generalized way of providing values
+   to a for loop.  See PEP 234.  There's a new built-in function iter()
+   to return an iterator.  There's a new protocol to get the next value
+   from an iterator using the next() method (in Python) or the
+   tp_iternext slot (in C).  There's a new protocol to get iterators
+   using the __iter__() method (in Python) or the tp_iter slot (in C).
+   Iterating (i.e. a for loop) over a dictionary generates its keys.
+   Iterating over a file generates its lines.
+ 
  - The following functions were generalized to work nicely with iterator
    arguments: