manhole.py 文件源码

def displayhook(self, obj):
        self.locals['_'] = obj
        if isinstance(obj, defer.Deferred):
            # XXX Ick, where is my "hasFired()" interface?
            if hasattr(obj, "result"):
                self.write(repr(obj))
            elif id(obj) in self._pendingDeferreds:
                self.write("<Deferred #%d>" % (self._pendingDeferreds[id(obj)][0],))
            else:
                d = self._pendingDeferreds
                k = self.numDeferreds
                d[id(obj)] = (k, obj)
                self.numDeferreds += 1
                obj.addCallbacks(self._cbDisplayDeferred, self._ebDisplayDeferred,
                                 callbackArgs=(k, obj), errbackArgs=(k, obj))
                self.write("<Deferred #%d>" % (k,))
        elif obj is not None:
            self.write(repr(obj))