Ipython: IPython 5.0.0b2 प्रांप्ट_टूलकिट.बफर के भीतर से अभिकथन त्रुटि

ऐसा लगता है कि IPython क्रैश हो जाएगा यदि आपने अपने इच्छित शब्द को पूरी तरह से टाइप कर दिया है, लेकिन फिर भी टैब-पूर्ण करने का प्रयास करें और फिर आप दबाएंटैब-पूर्णता संवाद को फिर से अचयनित करने के लिए।

उदाहरण:

1. IPython में "Import IPython" टाइप करें
2. दबाएँटैब-पूर्णता सक्षम करने के लिए
3. दबाएँटैब-पूर्णता को फिर से अचयनित करने के लिए
4. दबाएँ

यहाँ एक कंसोल स्क्रीनकास्ट है जो इस बग के लिए प्रतिकृति चरणों को दिखाता है: https://asciinema.org/a/7890yzftp8lzdjzxasrpvdnil

और स्टैकट्रैक:

Traceback (most recent call last):
  File "/tmp/foo/bin/ipython", line 11, in <module>
    sys.exit(start_ipython())
  File "/tmp/foo/lib/python3.5/site-packages/IPython/__init__.py", line 119, in start_ipython
    return launch_new_instance(argv=argv, **kwargs)
  File "/tmp/foo/lib/python3.5/site-packages/traitlets/config/application.py", line 596, in launch_instance
    app.start()
  File "/tmp/foo/lib/python3.5/site-packages/IPython/terminal/ipapp.py", line 348, in start
    self.shell.mainloop()
  File "/tmp/foo/lib/python3.5/site-packages/IPython/terminal/ptshell.py", line 398, in mainloop
    self.interact()
  File "/tmp/foo/lib/python3.5/site-packages/IPython/terminal/ptshell.py", line 381, in interact
    code = self.prompt_for_code()
  File "/tmp/foo/lib/python3.5/site-packages/IPython/terminal/ptshell.py", line 324, in prompt_for_code
    pre_run=self.pre_prompt, reset_current_buffer=True)
  File "/tmp/foo/lib/python3.5/site-packages/prompt_toolkit/interface.py", line 387, in run
    self.eventloop.run(self.input, self.create_eventloop_callbacks())
  File "/tmp/foo/lib/python3.5/site-packages/prompt_toolkit/eventloop/posix.py", line 154, in run
    t()
  File "/tmp/foo/lib/python3.5/site-packages/prompt_toolkit/eventloop/posix.py", line 82, in read_from_stdin
    inputstream.feed(data)
  File "/tmp/foo/lib/python3.5/site-packages/prompt_toolkit/terminal/vt100_input.py", line 376, in feed
    self._input_parser.send(c)
  File "/tmp/foo/lib/python3.5/site-packages/prompt_toolkit/terminal/vt100_input.py", line 295, in _input_parser_generator
    self._call_handler(match, prefix)
  File "/tmp/foo/lib/python3.5/site-packages/prompt_toolkit/terminal/vt100_input.py", line 328, in _call_handler
    self.feed_key_callback(KeyPress(key, insert_text))
  File "/tmp/foo/lib/python3.5/site-packages/prompt_toolkit/interface.py", line 916, in feed_key
    self._active_cli.input_processor.feed_key(key_press)
  File "/tmp/foo/lib/python3.5/site-packages/prompt_toolkit/key_binding/input_processor.py", line 174, in feed_key
    self._process_coroutine.send(key_press)
  File "/tmp/foo/lib/python3.5/site-packages/prompt_toolkit/key_binding/input_processor.py", line 146, in _process
    self._call_handler(matches[-1], key_sequence=buffer)
  File "/tmp/foo/lib/python3.5/site-packages/prompt_toolkit/key_binding/input_processor.py", line 190, in _call_handler
    handler.call(event)
  File "/tmp/foo/lib/python3.5/site-packages/prompt_toolkit/key_binding/registry.py", line 32, in call
    return self.handler(event)
  File "/tmp/foo/lib/python3.5/site-packages/IPython/terminal/ptshell.py", line 187, in _
    b.apply_completion(cs.current_completion)
  File "/tmp/foo/lib/python3.5/site-packages/prompt_toolkit/buffer.py", line 762, in apply_completion
    assert isinstance(completion, Completion)
AssertionError

If you suspect this is an IPython bug, please report it at:
    https://github.com/ipython/ipython/issues
or send an email to the mailing list at [email protected]

You can print a more detailed traceback right now with "%tb", or use "%debug"
to interactively debug it.

Extra-detailed tracebacks for bug-reporting purposes can be enabled via:
    %config Application.verbose_crash=True