Merged revisions 85392 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k
........
r85392 | benjamin.peterson | 2010-10-12 17:57:59 -0500 (Tue, 12 Oct 2010) | 1 line
prefer clearing global objects to obscure module.__dict__ bugs #10068
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diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 8751a0e..6245274 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -739,6 +739,13 @@
Special read-only attribute: :attr:`__dict__` is the module's namespace as a
dictionary object.
+ .. impl-detail::
+
+ Because of the way CPython clears module dictionaries, the module
+ dictionary will be cleared when the module falls out of scope even if the
+ dictionary still has live references. To avoid this, copy the dictionary
+ or keep the module around while using its dictionary directly.
+
.. index::
single: __name__ (module attribute)
single: __doc__ (module attribute)