Merged revisions 67590 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

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  r67590 | mark.dickinson | 2008-12-05 17:59:46 +0000 (Fri, 05 Dec 2008) | 2 lines

  Issue #4461: Safety check in parsenumber (ast.c)
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Python/ast.c

@@ -3137,6 +3137,7 @@ parsenumber(struct compiling *c, const char *s)
     int imflag;
 #endif
 
+    assert(s != NULL);
     errno = 0;
     end = s + strlen(s) - 1;
 #ifndef WITHOUT_COMPLEX