[Python-checkins] python/dist/src/Doc/lib libitertools.tex, 1.31, 1.32

[rhettinger at users.sourceforge.net]

Update of /cvsroot/python/python/dist/src/Doc/lib
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv22472/Doc/lib

Modified Files:
	libitertools.tex 
Log Message:
Improve three recipes in the itertools docs.

Index: libitertools.tex
===================================================================
RCS file: /cvsroot/python/python/dist/src/Doc/lib/libitertools.tex,v
retrieving revision 1.31
retrieving revision 1.32
diff -u -d -r1.31 -r1.32
--- libitertools.tex	11 Jul 2004 13:20:11 -0000	1.31
+++ libitertools.tex	23 Sep 2004 07:27:39 -0000	1.32
@@ -458,15 +458,21 @@
 
 def all(seq, pred=bool):
     "Returns True if pred(x) is True for every element in the iterable"
-    return False not in imap(pred, seq)
+    for elem in ifilterfalse(pred, seq):
+        return False
+    return True
 
 def any(seq, pred=bool):
-    "Returns True if pred(x) is True at least one element in the iterable"
-    return True in imap(pred, seq)
+    "Returns True if pred(x) is True for at least one element in the iterable"
+    for elem in ifilter(pred, seq):
+        return True
+    return False
 
 def no(seq, pred=bool):
     "Returns True if pred(x) is False for every element in the iterable"
-    return True not in imap(pred, seq)
+    for elem in ifilter(pred, seq):
+        return False
+    return True
 
 def quantify(seq, pred=bool):
     "Count how many times the predicate is True in the sequence"