def _bind_key(self, key, func):
"""Setup the mapping from key to call the function.
Parameters
----------
func : function
Must be callable.
Raises
------
ReadlineError
"""
if not callable(func):
print("Trying to bind non method to keystroke:%s,%s" % (key, func))
raise ReadlineError(
"Trying to bind non method to keystroke:%s,%s,%s,%s"
% (key, func, type(func), type(self._bind_key))
)
keyinfo = make_KeyPress_from_keydescr(key.lower()).tuple()
log(">>>%s -> %s<<<" % (keyinfo, func.__name__), logging.DEBUG)
self.key_dispatch[keyinfo] = func