Run selection/line in terminal fails with IPython

[BlancaAlfaro]

Type: Bug

Behaviour

Running selection/line with IPyhon activated does not execute on terminal. It starts a Python terminal but doesn't run the line.

(xxx) ➜  xxx ✗ /home/xxx/.cache/pypoetry/virtualenvs/xxxx/bin/python -m IPython --no-autoindent
Python 3.12.3 (main, Mar  3 2026, 12:15:18) [GCC 13.3.0]
Type 'copyright', 'credits' or 'license' for more information
IPython 9.5.0 -- An enhanced Interactive Python. Type '?' for help.
Tip: You can use `%hist` to view history, see the options with `%history?`
Ctrl click to launch VS Code Native REPL

In [1]: 

Steps to reproduce:

1. With IPython, open a .py file and either do Shift+Enter (if the shortcut is set to send to terminal) or right click /Run Python/Run selection/line in Python terminal
2. Check that code isn't executed.

To compare without IPython
4. Disable IPython by commenting on the IPython part your settings file (Ctrl+Shift+P -> Preferences Open User Settings (JSON))

// "python.terminal.launchArgs": [
//     "-m",
//     "IPython",
//     "--no-autoindent"
// ],

3. Kill previous terminal
4. Open a .py file and either do Shift+Enter (if the shortcut is set to send to terminal) or right click /Run Python/Run selection/line in Python terminal.
5. Check that code was sucessfully executed

(xxxx) ➜  xxxx ✗ /home/xxx/.cache/pypoetry/virtualenvs/xxxx/bin/python
Python 3.12.3 (main, Mar  3 2026, 12:15:18) [GCC 13.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
Ctrl click to launch VS Code Native REPL
>>> import base64
>>> 

Diagnostic data

With IPython, Python output logs indicate :

2026-04-16 14:23:07.213 [info] > ~/.cache/pypoetry/virtualenvs/xxxx/bin/python ~/.vscode-server/extensions/ms-python.python-2026.2.0-linux-x64/python_files/normalizeSelection.py

Without, it has an extra line "Send text to terminal" :

2026-04-16 14:22:53.373 [info] > ~/.cache/pypoetry/virtualenvs/xxxx/bin/python ~/.vscode-server/extensions/ms-python.python-2026.2.0-linux-x64/python_files/normalizeSelection.py
2026-04-16 14:22:53.399 [info] Send text to terminal: import base64

Extension version: 2026.4.0
VS Code version: Code 1.116.0 (560a9dba96f961efea7b1612916f89e5d5d4d679, 2026-04-15T00:28:13Z)
OS version: Windows_NT x64 10.0.26200
Modes:
Remote OS version: Linux x64 6.6.87.2-microsoft-standard-WSL2

• Python version (& distribution if applicable, e.g. Anaconda): 3.12.3.final.0
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Poetry
• Value of the python.languageServer setting: Default

User Settings

languageServer: "Pylance"

testing
• unittestEnabled: true

terminal
• launchArgs: "<placeholder>"

Installed Extensions

Extension Name	Extension Id	Version
autodocstring	njp	0.6.1
black-formatter	ms-	2025.2.0
debugpy	ms-	2025.18.0
flake8	ms-	2025.2.0
git-graph	mhu	1.30.0
isort	ms-	2025.0.0
js-debug	ms-	1.112.0
jsts-chat-features	Typ	0.0.2
jupyter	ms-	2025.9.1
jupyter-renderers	ms-	1.3.0
latex-workshop	Jam	10.14.1
python	ms-	2026.2.0
rainbow-csv	mec	3.24.1
todo-tree	Gru	0.0.226
vscode-github-actions	git	0.31.3
vscode-js-profile-table	ms-	1.0.10
vscode-jupyter-cell-tags	ms-	0.1.9
vscode-jupyter-slideshow	ms-	0.1.6
vscode-ltex	val	13.1.0
vscode-pull-request-github	Git	0.136.0
vscode-pylance	ms-	2026.2.1
vscode-python-envs	ms-	1.28.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) Ultra 9 185H (22 x 3072)
GPU Status	2d_canvas: enabled GPU0: VENDOR= 0x8086, DEVICE=0x7d55 [Intel(R) Arc(TM) Graphics], DRIVER_VENDOR=Intel, DRIVER_VERSION=32.0.101.6881 ACTIVE GPU1: VENDOR= 0x10de, DEVICE=0x2820 [NVIDIA GeForce RTX 4070 Laptop GPU], DRIVER_VERSION=32.0.15.8195 GPU2: VENDOR= 0x8086, DEVICE=0x7d55 [Intel(R) Arc(TM) Graphics], DRIVER_VERSION=32.0.101.6881 GPU3: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.8246 Machine model name: Machine model version: direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off trees_in_viz: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	31.46GB (15.73GB free)
Process Argv	--crash-reporter-id ba975da8-c8c8-4cb1-a32f-64ceb93e275b
Screen Reader	no
VM	0%

Item	Value
Remote	WSL: Ubuntu
OS	Linux x64 6.6.87.2-microsoft-standard-WSL2
CPUs	Intel(R) Core(TM) Ultra 9 185H (22 x 0)
Memory (System)	15.35GB (12.73GB free)
VM	0%

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