asyncio.sleep hangs with matplotlib qt5

[rj380cam]

This cell will not finish

%matplotlib qt5
import asyncio
await asyncio.sleep(1)
print("done")

Except if the other cell is run:

import matplotlib.pyplot as plt
plt.figure()

[asvetlov]

I guess https://github.com/harvimt/quamash event loop should be used to run both Qt and asyncio code.

[pwuertz]

@rj380cam I'm seeing this problem too. Executing the first cell seems to hang forever, but executing any other cell (no matter the content) continues normal operation.

You can even repeat await asyncio.sleep(1); print("done") and all of them execute normally once the initial await is "triggered" by executing another cell ^^