From: Benjamin Peterson <benjamin@python.org>
Date: Sat, 16 Oct 2010 03:51:38 +0000 (+0000)
Subject: Merged revisions 85562 via svnmerge from
X-Git-Tag: v2.7.1rc1~148
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f76942d6bf432d6881dc47070002d226e1e15ce9;p=python

Merged revisions 85562 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r85562 | benjamin.peterson | 2010-10-15 22:45:45 -0500 (Fri, 15 Oct 2010) | 1 line

  don't identify the toplevel namespace by name #9997
........
---

diff --git a/Lib/test/test_scope.py b/Lib/test/test_scope.py
index b1549ef43e..ab9e812a98 100644
--- a/Lib/test/test_scope.py
+++ b/Lib/test/test_scope.py
@@ -647,6 +647,13 @@ result2 = h()
         self.assertEqual(2, global_ns["result2"])
         self.assertEqual(9, global_ns["result9"])
 
+    def testTopIsNotSignificant(self):
+        # See #9997.
+        def top(a):
+            pass
+        def b():
+            global a
+
 
 def test_main():
     with check_warnings(("import \* only allowed at module level",
diff --git a/Misc/NEWS b/Misc/NEWS
index d8f2f1b3d6..c2b674b245 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,9 @@ What's New in Python 2.7.1?
 Core and Builtins
 -----------------
 
+- Issue #9997: Don't let the name "top" have special significance in scope
+  resolution.
+
 - Issue #9862: Compensate for broken PIPE_BUF in AIX by hard coding
   its value as the default 512 when compiling on AIX.
 
diff --git a/Python/symtable.c b/Python/symtable.c
index 98d1e11564..c18b39ecf1 100644
--- a/Python/symtable.c
+++ b/Python/symtable.c
@@ -847,7 +847,7 @@ symtable_enter_block(struct symtable *st, identifier name, _Py_block_ty block,
     st->st_cur = ste_new(st, name, block, ast, lineno);
     if (st->st_cur == NULL)
         return 0;
-    if (name == GET_IDENTIFIER(top))
+    if (block == ModuleBlock)
         st->st_global = st->st_cur->ste_symbols;
     if (prev) {
         if (PyList_Append(prev->ste_children,