Merged revisions 85455 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r85455 | georg.brandl | 2010-10-14 08:59:45 +0200 (Do, 14 Okt 2010) | 1 line

  #1710703: write zipfile structures also in the case of closing a new, but empty, archive.
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diff --git a/Doc/library/zipfile.rst b/Doc/library/zipfile.rst
index 33f58b2..bd6c3a6 100644
--- a/Doc/library/zipfile.rst
+++ b/Doc/library/zipfile.rst
@@ -122,6 +122,10 @@
    and :program:`unzip` commands on Unix (the InfoZIP utilities) don't support
    these extensions.
 
+   If the file is created with mode ``'a'`` or ``'w'`` and then
+   :meth:`close`\ d without adding any files to the archive, the appropriate
+   ZIP structures for an empty archive will be written to the file.
+
    ZipFile is also a context manager and therefore supports the
    :keyword:`with` statement.  In the example, *myzip* is closed after the
    :keyword:`with` statement's suite is finished---even if an exception occurs::