Ipython: NameError: name 'sys' is not defined

Django 3.1.4
Python 3.9.1
IPython 7.19.0
Error occurs during import:

```Traceback (most recent call last):
File "/usr/local/lib/python3.9/site-packages/IPython/terminal/ptutils.py", line 113, in get_completions
yield from self._get_completions(body, offset, cursor_position, self.ipy_completer)
File "/usr/local/lib/python3.9/site-packages/IPython/terminal/ptutils.py", line 129, in _get_completions
for c in completions:
File "/usr/local/lib/python3.9/site-packages/IPython/core/completer.py", line 438, in _deduplicate_completions
completions = list(completions)
File "/usr/local/lib/python3.9/site-packages/IPython/core/completer.py", line 1818, in completions
for c in self._completions(text, offset, _timeout=self.jedi_compute_type_timeout/1000):
File "/usr/local/lib/python3.9/site-packages/IPython/core/completer.py", line 1861, in _completions
matched_text, matches, matches_origin, jedi_matches = self._complete(
File "/usr/local/lib/python3.9/site-packages/IPython/core/completer.py", line 2029, in _complete
completions = self._jedi_matches(
File "/usr/local/lib/python3.9/site-packages/IPython/core/completer.py", line 1373, in _jedi_matches
interpreter = jedi.Interpreter(
File "/usr/local/lib/python3.9/site-packages/jedi/api/__init__.py", line 725, in __init__
super().__init__(code, environment=environment,
TypeError: __init__() got an unexpected keyword argument 'column'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/src/manage.py", line 15, in
execute_from_command_line(sys.argv)
File "/usr/local/lib/python3.9/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
utility.execute()
File "/usr/local/lib/python3.9/site-packages/django/core/management/__init__.py", line 395, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/local/lib/python3.9/site-packages/django/core/management/base.py", line 330, in run_from_argv
self.execute(args, *cmd_options)
File "/usr/local/lib/python3.9/site-packages/django/core/management/base.py", line 371, in execute
output = self.handle(args, *options)
File "/usr/local/lib/python3.9/site-packages/django/core/management/commands/shell.py", line 100, in handle
return getattr(self, shell)(options)
File "/usr/local/lib/python3.9/site-packages/django/core/management/commands/shell.py", line 36, in ipython
start_ipython(argv=[])
File "/usr/local/lib/python3.9/site-packages/IPython/__init__.py", line 126, in start_ipython
return launch_new_instance(argv=argv, *kwargs)
File "/usr/local/lib/python3.9/site-packages/traitlets/config/application.py", line 845, in launch_instance
app.start()
File "/usr/local/lib/python3.9/site-packages/IPython/terminal/ipapp.py", line 356, in start
self.shell.mainloop()
File "/usr/local/lib/python3.9/site-packages/IPython/terminal/interactiveshell.py", line 564, in mainloop
self.interact()
File "/usr/local/lib/python3.9/site-packages/IPython/terminal/interactiveshell.py", line 547, in interact
code = self.prompt_for_code()
File "/usr/local/lib/python3.9/site-packages/IPython/terminal/interactiveshell.py", line 473, in prompt_for_code
text = self.pt_app.prompt(
File "/usr/local/lib/python3.9/site-packages/prompt_toolkit/shortcuts/prompt.py", line 1013, in prompt
return self.app.run(set_exception_handler=set_exception_handler)
File "/usr/local/lib/python3.9/site-packages/prompt_toolkit/application/application.py", line 816, in run
return loop.run_until_complete(
File "/usr/local/lib/python3.9/asyncio/base_events.py", line 642, in run_until_complete
return future.result()
File "/usr/local/lib/python3.9/site-packages/prompt_toolkit/application/application.py", line 783, in run_async
return await _run_async2()
File "/usr/local/lib/python3.9/site-packages/prompt_toolkit/application/application.py", line 771, in _run_async2
await self.cancel_and_wait_for_background_tasks()
File "/usr/local/lib/python3.9/site-packages/prompt_toolkit/application/application.py", line 872, in cancel_and_wait_for_background_tasks
await task
File "/usr/local/lib/python3.9/site-packages/prompt_toolkit/buffer.py", line 1854, in new_coroutine
await coroutine(a, **kw)
File "/usr/local/lib/python3.9/site-packages/prompt_toolkit/buffer.py", line 1683, in async_completer
async for completion in self.completer.get_completions_async(
File "/usr/local/lib/python3.9/site-packages/prompt_toolkit/completion/base.py", line 269, in get_completions_async
async for completion in completer.get_completions_async(
File "/usr/local/lib/python3.9/site-packages/prompt_toolkit/completion/base.py", line 196, in get_completions_async
for item in self.get_completions(document, complete_event):
File "/usr/local/lib/python3.9/site-packages/IPython/terminal/ptutils.py", line 116, in get_completions
exc_type, exc_value, exc_tb = sys.exc_info()
NameError: name 'sys' is not defined

But when I just call `import sys` this it works:

Python 3.9.1 (default, Dec 25 2020, 21:17:19)
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.

import sys
sys.exc_info()
(None, None, None)
```