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Signal Functions
================
.. currentmodule:: urwid
The :func:`urwid.\*_signal` functions use a shared Signals object instance
for tracking registered and connected signals. There is no reason to
instantiate your own Signals object.
.. function:: connect_signal(obj, name, callback, user_arg=None, weak_args=None, user_args=None)
.. automethod:: Signals.connect
.. function:: disconnect_signal_by_key(obj, name, key)
.. automethod:: Signals.disconnect_by_key
.. function:: disconnect_signal(obj, name, callback, user_arg=None, weak_args=None, user_args=None)
.. automethod:: Signals.disconnect
.. function:: register_signal(sig_cls, signals)
.. automethod:: Signals.register
.. function:: emit_signal(obj, name, \*args)
.. automethod:: Signals.emit
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