examples/tk.py fails with "RuntimeError: Cannot run the event loop while another loop is running"

[drusakov778]

Hi Ewald,

seems to be very nice library which I am starting to use now. Running the examples with single modification of my local host, port, and client_id in the IB.connect() line.

examples/qt_ticker_table.py runs fine

examples/tk.py fails:

rusakov@dfk78:~/mcai/github/ib_insync (master)$ python examples/tk.py 
Traceback (most recent call last):
  File "examples/tk.py", line 47, in <module>
    app.run()
  File "examples/tk.py", line 36, in run
    self.loop.run_forever()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/asyncio/base_events.py", line 531, in run_forever
    self._check_runnung()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/asyncio/base_events.py", line 526, in _check_runnung
    'Cannot run the event loop while another loop is running')
RuntimeError: Cannot run the event loop while another loop is running

---

MacOS: 10.14.6 Python 3.7.7 ib_insync: latest, installed from git, hash f4e0525 nest-asyncio: 1.3.2 eventkit: 0.8.6

[drusakov778]

related discussion with some more info: https://groups.io/g/insync/topic/71373406

[erdewit]

More folks are having the issue, but I can't reproduce it.

Not sure what other loop could be running.

[erdewit]

There's a typo in the Python 3.7 source code: self._check_runnung() which was not handled in nest_asyncio. Version 1.3.3 of nest_asyncio addresses this.

[drusakov778]

Ewald, impressive, thank you. Will check tomorrow and confirm from my side.

[drusakov778]

confirmed. fix works for me for python 3.7.7. Thank you

[erdewit]

Great, thanks for confirming