Incompatibility of adaptive (asyncio) with python=3.10

[juandaanieel]

When executing an adaptive example, the runner fails due to a keyword error.
This error has been found before. It requires to remove the loop keyword since it is not anymore supported by python 3.10.

The minimal code that produces the problem is:

import adaptive
import numpy as np
adaptive.notebook_extension()

def ring(xy):
    x, y = xy
    a = 0.2
    return x + np.exp(-(x**2 + y**2 - 0.75**2)**2/a**4)

learner = adaptive.Learner2D(ring, bounds=[(-1, 1), (-1, 1)])
runner = adaptive.Runner(learner, goal=lambda l: l.loss() < 0.01)
runner.task.result()

The error is:

TypeError                                 Traceback (most recent call last)
Input In [27], in <cell line: 1>()
----> 1 runner.task.result()

File /opt/conda/lib/python3.10/site-packages/adaptive/runner.py:584, in AsyncRunner.status(self)
    579 """Return the runner status as a string.
    580 
    581 The possible statuses are: running, cancelled, failed, and finished.
    582 """
    583 try:
--> 584     self.task.result()
    585 except asyncio.CancelledError:
    586     return "cancelled"

File /opt/conda/lib/python3.10/site-packages/adaptive/runner.py:584, in AsyncRunner.status(self)
    579 """Return the runner status as a string.
    580 
    581 The possible statuses are: running, cancelled, failed, and finished.
    582 """
    583 try:
--> 584     self.task.result()
    585 except asyncio.CancelledError:
    586     return "cancelled"

File /opt/conda/lib/python3.10/site-packages/adaptive/runner.py:645, in AsyncRunner._run(self)
    643     while not self.goal(self.learner):
    644         futures = self._get_futures()
--> 645         done, _ = await asyncio.wait(
    646             futures, return_when=first_completed, loop=self.ioloop
    647         )
    648         self._process_futures(done)
    649 finally:

TypeError: wait() got an unexpected keyword argument 'loop'

[akhmerov]

Some context: https://stackoverflow.com/questions/60312374/what-are-all-these-deprecated-loop-parameters-in-asyncio

[basnijholt]

Thanks for reporting! I'll fix this soon and add CI Python 3.10 testing.

[basnijholt]

I have added Python 3.10 to the CI and fixed this issue in #348 (which should autocomplete in about 20 min).

[basnijholt]

@juandaanieel, I have also released v0.13.2.