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+:mod:`aetools` --- OSA client support
+=====================================
+
+.. module:: aetools
+   :platform: Mac
+   :synopsis: Basic support for sending Apple Events
+.. sectionauthor:: Jack Jansen <Jack.Jansen@cwi.nl>
+
+
+.. % \moduleauthor{Jack Jansen?}{email}
+
+The :mod:`aetools` module contains the basic functionality on which Python
+AppleScript client support is built. It also imports and re-exports the core
+functionality of the :mod:`aetypes` and :mod:`aepack` modules. The stub packages
+generated by :mod:`gensuitemodule` import the relevant portions of
+:mod:`aetools`, so usually you do not need to import it yourself. The exception
+to this is when you cannot use a generated suite package and need lower-level
+access to scripting.
+
+The :mod:`aetools` module itself uses the AppleEvent support provided by the
+:mod:`Carbon.AE` module. This has one drawback: you need access to the window
+manager, see section :ref:`osx-gui-scripts` for details. This restriction may be
+lifted in future releases.
+
+The :mod:`aetools` module defines the following functions:
+
+
+.. function:: packevent(ae, parameters, attributes)
+
+   Stores parameters and attributes in a pre-created ``Carbon.AE.AEDesc`` object.
+   ``parameters`` and ``attributes`` are  dictionaries mapping 4-character OSA
+   parameter keys to Python objects. The objects are packed using
+   ``aepack.pack()``.
+
+
+.. function:: unpackevent(ae[, formodulename])
+
+   Recursively unpacks a ``Carbon.AE.AEDesc`` event to Python objects. The function
+   returns the parameter dictionary and the attribute dictionary. The
+   ``formodulename`` argument is used by generated stub packages to control where
+   AppleScript classes are looked up.
+
+
+.. function:: keysubst(arguments, keydict)
+
+   Converts a Python keyword argument dictionary ``arguments`` to the format
+   required by ``packevent`` by replacing the keys, which are Python identifiers,
+   by the four-character OSA keys according to the mapping specified in
+   ``keydict``. Used by the generated suite packages.
+
+
+.. function:: enumsubst(arguments, key, edict)
+
+   If the ``arguments`` dictionary contains an entry for ``key`` convert the value
+   for that entry according to dictionary ``edict``. This converts human-readable
+   Python enumeration names to the OSA 4-character codes. Used by the generated
+   suite packages.
+
+The :mod:`aetools` module defines the following class:
+
+
+.. class:: TalkTo([signature=None, start=0, timeout=0])
+
+   Base class for the proxy used to talk to an application. ``signature`` overrides
+   the class attribute ``_signature`` (which is usually set by subclasses) and is
+   the 4-char creator code defining the application to talk to. ``start`` can be
+   set to true to enable running the application on class instantiation.
+   ``timeout`` can be specified to change the default timeout used while waiting
+   for an AppleEvent reply.
+
+
+.. method:: TalkTo._start()
+
+   Test whether the application is running, and attempt to start it if not.
+
+
+.. method:: TalkTo.send(code, subcode[, parameters, attributes])
+
+   Create the AppleEvent ``Carbon.AE.AEDesc`` for the verb with the OSA designation
+   ``code, subcode`` (which are the usual 4-character strings), pack the
+   ``parameters`` and ``attributes`` into it, send it to the target application,
+   wait for the reply, unpack the reply with ``unpackevent`` and return the reply
+   appleevent, the unpacked return values as a dictionary and the return
+   attributes.
+