21 def _fileobj_to_fd(fileobj):  argument
33     if isinstance(fileobj, int):
34         fd = fileobj
37             fd = int(fileobj.fileno())
40                              "{!r}".format(fileobj)) from None
54     SelectorKey.fileobj.__doc__ = 'File object registered.'
69     def __getitem__(self, fileobj):  argument
71             fd = self._selector._fileobj_lookup(fileobj)
74             raise KeyError("{!r} is not registered".format(fileobj)) from None
96     def register(self, fileobj, events, data=None):  argument
119     def unregister(self, fileobj):  argument
137     def modify(self, fileobj, events, data=None):  argument
151         self.unregister(fileobj)
152         return self.register(fileobj, events, data)
180     def get_key(self, fileobj):  argument
190             return mapping[fileobj]
192             raise KeyError("{!r} is not registered".format(fileobj)) from None
215     def _fileobj_lookup(self, fileobj):  argument
225             return _fileobj_to_fd(fileobj)
229                 if key.fileobj is fileobj:
234     def register(self, fileobj, events, data=None):  argument
238         key = SelectorKey(fileobj, self._fileobj_lookup(fileobj), events, data)
242                            .format(fileobj, key.fd))
247     def unregister(self, fileobj):  argument
249             key = self._fd_to_key.pop(self._fileobj_lookup(fileobj))
251             raise KeyError("{!r} is not registered".format(fileobj)) from None
254     def modify(self, fileobj, events, data=None):  argument
256             key = self._fd_to_key[self._fileobj_lookup(fileobj)]
258             raise KeyError("{!r} is not registered".format(fileobj)) from None
260             self.unregister(fileobj)
261             key = self.register(fileobj, events, data)
298     def register(self, fileobj, events, data=None):  argument
299         key = super().register(fileobj, events, data)
306     def unregister(self, fileobj):  argument
307         key = super().unregister(fileobj)
351     def register(self, fileobj, events, data=None):  argument
352         key = super().register(fileobj, events, data)
361             super().unregister(fileobj)
365     def unregister(self, fileobj):  argument
366         key = super().unregister(fileobj)
375     def modify(self, fileobj, events, data=None):  argument
377             key = self._fd_to_key[self._fileobj_lookup(fileobj)]
391                 super().unregister(fileobj)
516         def register(self, fileobj, events, data=None):  argument
517             key = super().register(fileobj, events, data)
528                 super().unregister(fileobj)
532         def unregister(self, fileobj):  argument
533             key = super().unregister(fileobj)