From: Georg Brandl <georg@python.org>
Date: Fri, 18 Jan 2008 16:42:57 +0000 (+0000)
Subject: Note that genexps are function scopes too and therefore won't see class attributes.
X-Git-Tag: v2.6a1~557
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a9e073d100c3869231ce7275ff7a810d8db74fc4;p=thirdparty%2FPython%2Fcpython.git

Note that genexps are function scopes too and therefore won't see class attributes.
---

diff --git a/Doc/reference/executionmodel.rst b/Doc/reference/executionmodel.rst
index 69a6259a235e..c5a24e9ca0f2 100644
--- a/Doc/reference/executionmodel.rst
+++ b/Doc/reference/executionmodel.rst
@@ -52,7 +52,13 @@ variable is defined in a block, its scope includes that block.  If the
 definition occurs in a function block, the scope extends to any blocks contained
 within the defining one, unless a contained block introduces a different binding
 for the name.  The scope of names defined in a class block is limited to the
-class block; it does not extend to the code blocks of methods.
+class block; it does not extend to the code blocks of methods -- this includes
+generator expressions since they are implemented using a function scope.  This
+means that the following will fail::
+
+   class A:
+       a = 42
+       b = list(a + i for i in range(10))
 
 .. index:: single: environment