Parent process venv is not passed through to python subprocesses when using internalConsole

Open

#1,678 opened on Apr 4, 2024 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty: 4/5
Estimated time: 3-5 days
Newbie friendliness: 35/100

Issue type: Bug
Clarity: Mostly clear
Activity status: Stale
Tech stack: python, vscode
Domain: devtools

Research direction

Start with the supplied test.py and .vscode/launch.json reproduction, comparing internalConsole with integratedTerminal. Trace how debugpy launches and intercepts Python subprocesses, focusing on PATH and VIRTUAL_ENV propagation. Done means the cowsay subprocess runs under internalConsole without the server disconnect or missing-module error.

Written by the indexing model from the issue text.

Description

bug needs repro

Configuring "console": "internalConsole" for a launch target causes Python subprocesses spawned by the main debug process to not have their venv inherited correctly.

Repro. steps:

Create a venv and install cowsay
Open VS Code in the venv parent dir
Create files as follows:

test.py:

import subprocess
stdout = subprocess.check_output(["python", "-m", "cowsay", "-t", "test"])
print(stdout.decode())

.vscode/launch.json:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Python Debugger: test.py",
            "type": "debugpy",
            "request": "launch",
            "program": "test.py",
            "console": "internalConsole", // Doesn't work
//            "console": "integratedTerminal", // Works
        }
    ]
}

Launch the debug target

Actual outcome

Dialog box with "Server disconnected unexpectedly" displayed
"No module named cowsay" printed in debug console

Expected outcome

Subprocess runs without error

Notes

The underlying cause seems to be that the PATH and VIRTUAL_ENV env vars are not inherited correctly in spawned subprocesses when they are intercepted for debugging.

Dominant language: Python
Stars: 2.5k
Forks: 202
Avg merge: 5d 1h
Merged PRs (30d): 1

Contributor guide

Open the contributing guide

First steps

Read the whole issue, then the project's contributing guide.
Comment on the issue to say you are picking it up — it saves two people doing the same work.
Fork the repository and make your change on a branch.
Open a pull request that references the issue number.

Similar issues

PATCH /interviews/{id} 的 goal 字段没有任何长度上限，500KB 字符串直接落库且每次 GET detail 都全量带回 Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

xinnan-tech/xiaozhi-fde-talk#263 · Opened Sep 24, 2026
rules: REQ-0480 'left fold' jargon is redundant with its own plain restatement Open

rules

Difficulty 1/5 Under an hour Newbie friendliness 90/100

elong0527/yamaa#978 · Opened Sep 24, 2026
Validation discards output from runners that report on stderr (jest, unittest) Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

huggingface/Repo2RLEnv#163 · 1 comment · Opened Sep 24, 2026
Source link in quantize_embeddings have shifted code highlights Open

Difficulty 1/5 Under an hour Newbie friendliness 95/100

huggingface/sentence-transformers#4074 · Opened Sep 24, 2026
Queue insertion button ("插入排队消息") missing in api_server sessions — canInsert allowlist only covers cli/global_agent Open

comp/dashboard invalid P3

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

NousResearch/hermes-agent#121143 · Opened Sep 24, 2026

More Python issues