Try to support prompt_toolkit >3.0.37

[FantasqueX]

Currently one test will fail with latest prompt_toolkit(3.0.43). test_blank_line_fix will throw RuntimeError: no running event loop. By bisecting commit, the culprit is
prompt-toolkit/python-prompt-toolkit@a775996. This commit replaces custom get_event_loop with asyncio.get_event_loop. The former will creator a new loop if asyncio.get_running_loop fails while the latter won't. I mimic the changes in the examples to use asyncio.run and the test passes. I'm not sure whether more changes are needed.

What is the problem that this PR addresses?

Closes: #344

How did you solve it?

Use asyncio.run to make the test pass.

Checklist

• I have read the Contributor's Guide.
• I will check that all automated PR checks pass before the PR gets reviewed.

[FantasqueX]

@kiancross Hi, could you please take a look at this? I'm not sure whether I have to do more except making all tests pass.

[FantasqueX]

I've fixed code quality problem. Gently ping~

[florian6973]

Any update please?

[kiancross]

@FantasqueX Please could you merge latest changes into this branch and then I can run the CI.

[FantasqueX]

@FantasqueX Please could you merge latest changes into this branch and then I can run the CI.

@kiancross Done :)

[kiancross]

The CI is currently failing because there was a breaking change in 3.0.29, which changed the return type of create_pipe_input. Prior to this version, it did not return a context manager.

prompt-toolkit/python-prompt-toolkit@97ac514

Given we support these previous versions of prompt_toolkit (for reasons I am unaware of), I suppose some conditional logic needs to be added here?

[FantasqueX]

@kiancross Hi, I have added some conditional logic and make CI happy. Could you please review it again :)

[fijemax]

Hello, can we tag a new version who is carrying this fix ?

[kiancross]

I'll push a new version within the next week.

[superlevure]

Hello, could we get a new release with this fix?