[Partial backport of r51218 | neal.norwitz -- the changes to ast.c, symtable.c, and _elementtree.c weren't applicable] Klocwork made another run and found a bunch more problems. This is the first batch of fixes that should be easy to verify based on context. This fixes problem numbers: 220 (ast), 323-324 (symtable), 321-322 (structseq), 215 (array), 210 (hotshot), 182 (codecs), 209 (etree).

--- a/Modules/_codecsmodule.c	Thu Oct 05 18:22:02 2006 +0000
+++ b/Modules/_codecsmodule.c	Thu Oct 05 18:37:08 2006 +0000
@@ -226,7 +226,8 @@
 	buf = PyString_AS_STRING (str);
 	len = PyString_GET_SIZE (str);
 	memmove(buf, buf+1, len-2);
-	_PyString_Resize(&str, len-2);
+	if (_PyString_Resize(&str, len-2) < 0)
+		return NULL;
 	
 	return codec_tuple(str, PyString_Size(str));
 }