Method flush

IPython/core/displayhook.py:301–332

(self)

            oh.pop(n, None)

    def flush(self):
        if not self.do_full_cache:
            raise ValueError("You shouldn't have reached the cache flush "
                             "if full caching is not enabled!")
        # delete auto-generated vars from global namespace

        for n in range(1,self.prompt_count + 1):
            key = '_'+repr(n)
            try:
                del self.shell.user_ns_hidden[key]
            except KeyError:
                pass
            try:
                del self.shell.user_ns[key]
            except KeyError:
                pass
        # In some embedded circumstances, the user_ns doesn't have the
        # '_oh' key set up.
        oh = self.shell.user_ns.get('_oh', None)
        if oh is not None:
            oh.clear()

        # Release our own references to objects:
        self._, self.__, self.___ = '', '', ''

        if '_' not in builtin_mod.__dict__:
            self.shell.user_ns.update({'_':self._,'__':self.__,'___':self.___})
        import gc
        # TODO: Is this really needed?
        # IronPython blocks here forever
        if sys.platform != "cli":
            gc.collect()


class CapturingDisplayHook: