intellisense does not work in macOs after sleep

[MikaeelMF]

Describe the bug

Hi!

I am using marimo 0.17.0 (this phenomena occurred on the last version prior to this release as well), and whenever my laptop goes to sleep, after wake up the intellisense does not work anymore (i.e. if I type polars.something, it does not provide any auto recommendation). The workaround is to restart the notebook and running it again.

Will you submit a PR?

• Yes

Environment

{
  "marimo": "0.17.0",
  "editable": false,
  "OS": "Darwin",
  "OS Version": "25.0.0",
  "Processor": "arm",
  "Python Version": "3.12.9",
  "Locale": "en_CA",
  "Binaries": {
    "Browser": "141.0.7390.109",
    "Node": "v22.15.0"
  },
  "Dependencies": {
    "click": "8.3.0",
    "docutils": "0.22.2",
    "itsdangerous": "2.2.0",
    "jedi": "0.19.2",
    "markdown": "3.9",
    "narwhals": "2.8.0",
    "packaging": "25.0",
    "psutil": "7.0.0",
    "pygments": "2.19.2",
    "pymdown-extensions": "10.16.1",
    "pyyaml": "6.0.3",
    "starlette": "0.48.0",
    "tomlkit": "0.13.3",
    "typing-extensions": "4.15.0",
    "uvicorn": "0.37.0",
    "websockets": "15.0.1"
  },
  "Optional Dependencies": {
    "altair": "5.5.0",
    "anywidget": "0.9.18",
    "pandas": "2.3.3",
    "polars": "1.34.0",
    "pyarrow": "17.0.0",
    "loro": "1.8.1",
    "pytest": "8.4.2",
    "python-lsp-ruff": "2.3.0",
    "python-lsp-server": "1.13.1",
    "ruff": "0.13.3"
  },
  "Experimental Flags": {
    "external_agents": true,
    "chat_modes": true,
    "performant_table_charts": true
  }
}

Code to reproduce

No response

[mscolnick]

do you have python-lsp-server enabled for you intensene? is there anything in the browser logs (broken ws connection) or in the terminal (e.g. process terminated)?

[MikaeelMF]

Yes I do have python-lsp-server enabled. I also tried with ty as well. The logs in the browser show that WebSocket is already in CLOSING or CLOSED state, and then:

dist-BNtnpgX8.js:7 Error: Request timeout request took longer than 10000 ms to resolve
    at new s (cells-BEhFXxEH.js:66:11293)
    at cells-BEhFXxEH.js:66:14016

[mscolnick]

Thanks, i have a fix out

[MikaeelMF]

Thanks! Looking forward to it!

[MikaeelMF]

Hi! I wanted to mention that this issue is not yet resolved in 0.7.2.
This time the error message is different:

WebSocket closed 1006
WebSocket is closed or closing, attempting to reconnect
Error: AttributeError: 'NoneType' object has no attribute 'get_document'
    at new s (cells-B6jS0AIj.js:81:19465)
    at e.convertJSONToRPCError (cells-B6jS0AIj.js:81:19694)
    at e.TransportRequestManager.o.processResult (cells-B6jS0AIj.js:81:21479)
    at e.TransportRequestManager.o.resolveRes (cells-B6jS0AIj.js:81:21822)
    at e.TransportRequestManager.o.resolveResponse (cells-B6jS0AIj.js:81:20732)
    at WebSocket.<anonymous> (cells-B6jS0AIj.js:82:11183)

[MikaeelMF]

@mscolnick

[mscolnick]

I'll re-open. I could repro this when putting my own computer asleep prior to 0.17.2, but i can't repro this anymore. Ill poke around a bit more

[MikaeelMF]

Thanks! Let me know if there is additional info that I can provide that can help you.

[mscolnick]

I was able to repro this now (happens in production builds, but not development). I should be able to put up something in a bit