#i{vdZGddZiZdZedZedZedZedZedZy ) aoInfrastructure for registering and firing callbacks on application events. Unlike :mod:`IPython.core.hooks`, which lets end users set single functions to be called at specific times, or a collection of alternative methods to try, callbacks are designed to be used by extension authors. A number of callbacks can be registered for the same event without needing to be aware of one another. The functions defined in this module are no-ops indicating the names of available events and the arguments which will be passed to them. .. note:: This API is experimental in IPython 2.0, and may be revised in future versions. c*eZdZdZddZdZdZdZy) EventManagera3Manage a collection of events and a sequence of callbacks for each. This is attached to :class:`~IPython.core.interactiveshell.InteractiveShell` instances as an ``events`` attribute. .. note:: This API is experimental in IPython 2.0, and may be revised in future versions. cV||_|Dcic]}|gc}|_||_ycc}w)aInitialise the :class:`CallbackManager`. Parameters ---------- shell The :class:`~IPython.core.interactiveshell.InteractiveShell` instance available_events An iterable of names for callback events. print_on_error: A boolean flag to set whether the EventManager will print a warning which a event errors. N)shell callbacksprint_on_error)selfravailable_eventsrns BC:\Projects\mas-dev\.venv\Lib\site-packages\IPython/core/events.py__init__zEventManager.__init__s4 (89(81!B$(89,:s &ct|std|z||j|vr|j|j|yy)aRegister a new event callback. Parameters ---------- event : str The event for which to register this callback. function : callable A function to be called on the given event. It should take the same parameters as the appropriate callback prototype. Raises ------ TypeError If ``function`` is not callable. KeyError If ``event`` is not one of the known events. zNeed a callable, got %rN)callable TypeErrorrappendreventfunctions r registerzEventManager.register,sJ$!5@A A 4>>%0 0 NN5 ! ( ( 2 1c||j|vr|j|j|Stdj||)z'Remove a callback from the given event.z0Function {!r} is not registered as a {} callback)rremove ValueErrorformatrs r unregisterzEventManager.unregisterCsH t~~e, ,>>%(//9 9KRRS[]bcddrc |j|ddD] } ||i| y#ttf$rF|jrt dj |||||j jYcwxYw)zCall callbacks for ``event``. Any additional arguments are passed to all callbacks registered for this event. Exceptions raised by callbacks are caught, and a message printed. Nz@Error in callback {} (for {}), with arguments args {},kwargs {}:)r ExceptionKeyboardInterruptrprintrr showtraceback)rrargskwargsfuncs r triggerzEventManager.triggerJs NN5)!,D +d%f%-01 +&&Zaa %v  ((* +s"AA76A7N)T)__name__ __module__ __qualname____doc__r rrr#rr rrs- 3.e+rrc,|t|j<|S)N)r r$)callback_functions r _define_eventr+_s3D&//0 rcy)zFires before code is executed in response to user/frontend action. This includes comm and widget messages and silent execution, as well as user code cells. Nr(r(rr pre_executer-j rcy)zFires before user-entered code runs. Parameters ---------- info : :class:`~IPython.core.interactiveshell.ExecutionInfo` An object containing information used for the code execution. Nr()infos r pre_run_cellr1s rcy)zFires after code is executed in response to user/frontend action. This includes comm and widget messages and silent execution, as well as user code cells. Nr(r(rr post_executer4~r.rcy)zFires after user-entered code runs. Parameters ---------- result : :class:`~IPython.core.interactiveshell.ExecutionResult` The object which will be returned as the execution result. Nr()results r post_run_cellr7r2rcy)aKFires after initialisation of :class:`~IPython.core.interactiveshell.InteractiveShell`. This is before extensions and startup scripts are loaded, so it can only be set by subclassing. Parameters ---------- ip : :class:`~IPython.core.interactiveshell.InteractiveShell` The newly initialised shell. Nr()ips r shell_initializedr:s rN) r'rr r+r-r1r4r7r:r(rr r;s  I+I+X            r