Error getting response from REPL server: Connection is closed

[rebornix]

Type: Bug

Behaviour

Python REPL doesn't work with following code. Once it's broken, it doesn't run any code

import pandas as pd

url = "/Users/penlv/Code/Test/notebook-test-data/pandas_ai/chipotle.tsv"

chipo = pd.read_csv(url, sep="\t")
chipo.head()

print(chipo.head())

Steps to reproduce:

Run above code (with your own csv/tsv file)

Diagnostic data

2024-08-28 11:32:41.459 [error] Error getting response from REPL server: [k [Error]: Connection is closed. at pe (/Users/penlv/.vscode-insiders/extensions/ms-python.python-2024.13.2024082701-darwin-arm64/out/client/extension.js:2:2074294) at Object.sendRequest (/Users/penlv/.vscode-insiders/extensions/ms-python.python-2024.13.2024082701-darwin-arm64/out/client/extension.js:2:2076652) at m.execute (/Users/penlv/.vscode-insiders/extensions/ms-python.python-2024.13.2024082701-darwin-arm64/out/client/extension.js:2:797706) at u.value (/Users/penlv/.vscode-insiders/extensions/ms-python.python-2024.13.2024082701-darwin-arm64/out/client/extension.js:2:823226) at i.executeHandler (/Users/penlv/.vscode-insiders/extensions/ms-python.python-2024.13.2024082701-darwin-arm64/out/client/extension.js:2:802734) at a.$executeCells (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:161:240529) at y.S (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:158:5968) at y.Q (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:158:5734) at y.M (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:158:4767) at y.L (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:158:3602) at i.value (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:158:2297) at r.B (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:90:732) at r.fire (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:90:949) at a.fire (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:115:14463) at i.value (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:184:8635) at r.B (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:90:732) at r.fire (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:90:949) at a.fire (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:115:14463) at MessagePortMain. (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/api/node/extensionHostProcess.js:184:6761) at MessagePortMain.emit (node:events:519:28) at MessagePortMain._internalPort.emit (node:electron/js2c/utility_init:2:2619)] { code: 1

XXX

Extension version: 2024.13.2024082701
VS Code version: Code - Insiders 1.93.0-insider (Universal) (d1388fd, 2024-08-28T05:14:36.262Z)
OS version: Darwin arm64 23.6.0
Modes:

• Python version (& distribution if applicable, e.g. Anaconda): 3.12.3
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Venv
• Value of the python.languageServer setting: Default

User Settings

languageServer: "Pylance"

Installed Extensions

Extension Name	Extension Id	Version
EditorConfig for VS Code	EditorConfig.EditorConfig	0.16.4
ESLint	dbaeumer.vscode-eslint	3.0.13
Flame Chart Visualizer for JavaScript Profiles	ms-vscode.vscode-js-profile-flame	1.0.9
GitHub Issue Notebooks	ms-vscode.vscode-github-issue-notebooks	0.0.130
GitHub Theme	GitHub.github-vscode-theme	6.3.4
JavaScript Debugger	ms-vscode.js-debug	1.92.0
JavaScript Debugger Companion Extension	ms-vscode.js-debug-companion	1.1.3
Mocha Test Explorer	hbenl.vscode-mocha-test-adapter	2.14.1
Nord	arcticicestudio.nord-visual-studio-code	0.19.0
PR Pinger	jrieken.vscode-pr-pinger	0.0.6
Pylance	ms-python.vscode-pylance	2024.8.2
Python	ms-python.python	2024.13.2024082701
Python Debugger	ms-python.debugpy	2024.10.0
Table Visualizer for JavaScript Profiles	ms-vscode.vscode-js-profile-table	1.0.9
Test Adapter Converter	ms-vscode.test-adapter-converter	0.1.9
Test Explorer UI	hbenl.vscode-test-explorer	2.21.1

[anthonykim1]

ext version: v2024.13.2024082701

I cannot repro this(tried with my own csv and given code, although it would def produce file not found error for second screenshot; didn't seem to crash REPL entirely):

Are you somehow switching the interpreter/kernel in the middle?

Can you run

import sys
print(sys.executable)

inside the REPL and see what you get?

[rebornix]

@anthonykim1 I don't seem to reproduce after a few window reloads. I successfully reproduced though while talking to @karthiknadig after the standup. I'll see how I can force a reproduce.

[anthonykim1]

This is late but are you still suffering from this?

[anthonykim1]

Closing this but please lmk if you suffer from this again :)

[SudoCerb]

I can confirm that I am suffering from this at present.

I ran exit() in a cell to see whether it would terminate the session and allow me to start a new one, but all subsequent attempts to run a cell were met with "Connection is closed.". I also tried to change kernels, but didn't want to install any packages in my .venv, so I changed back to the "Python REPL" kernel hoping that it would have restarted but still got the connection closed error.

I have also experienced this under other conditions (not just when running exit(), I will revert when I have another scenario).

What info do you need from me?

Here's my VSCode about:

Version: 1.99.0 (user setup)
Commit: 4437686ffebaf200fa4a6e6e67f735f3edf24ada
Date: 2025-04-02T21:35:19.530Z
Electron: 34.3.2
ElectronBuildId: 11161073
Chromium: 132.0.6834.210
Node.js: 20.18.3
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.26100