printing huge str gets truncated with F5 or ctrl+F5

[adusamr]

Type: Bug

Behavior

When running code that print a huge str with F5 or ctrl+F5, the output gets truncated.
This does not happen if I run the code by python <filename> in the same console.

Steps to reproduce:

1. make a.py with the following code:

print(" ".join(map(str, range(5000))))

2. run a.py by F5 or ctrl+F5

The last number in the output is 2610. This number varies depending on the argument of range.

Diagnostic data

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

XXX

Extension version: 2026.0.0
VS Code version: Code 1.109.0 (bdd88df003631aaa0bcbe057cb0a940b80a476fa, 2026-02-04T02:01:38.288Z)
OS version: Windows_NT x64 10.0.26100
Modes: Unsupported

• Python version (& distribution if applicable, e.g. Anaconda): 3.12.7
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): System
• Value of the python.languageServer setting: Pylance

User Settings

languageServer: "Pylance"

terminal
• activateEnvironment: false

Installed Extensions

Extension Name	Extension Id	Version
autodocstring	njp	0.6.1
cpptools	ms-	1.30.5
debugpy	ms-	2025.18.0
even-better-toml	tam	0.21.2
githistory	don	0.6.20
js-debug	ms-	1.105.0
js-debug-companion	ms-	1.1.3
powershell	ms-	2025.4.0
python	ms-	2026.0.0
remote-wsl	ms-	0.104.3
ruff	cha	2026.36.0
vscode-autohotkey-plus-plus	mar	6.7.3
vscode-fileutils	sle	3.10.3
vscode-js-profile-table	ms-	1.0.10
vscode-pylance	ms-	2025.10.4
vscode-quick-select	dba	0.2.9
vscode-xml	red	0.29.0

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