New terminal is not started when execute a new python file

[lucasguo]

Type: Bug

1. run 1st python file from vscode, the behavior is correct.
2. when 1st python file is still executing, run 2nd python file, vscode doesn't open a new terminal, instead it just append the execution command to existing terminal, as a result, the command line is treat as a common input string to 1st python, and the 2nd file is not executed.

VS Code version: Code 1.77.3 (704ed70d4fd1c6bd6342c436f1ede30d1cff4710, 2023-04-12T09:16:52.732Z)
OS version: Linux x64 5.19.0-38-generic
Modes:
Sandboxed: Yes

System Info

Item	Value
CPUs	AMD EPYC 7R13 48-Core Processor (192 x 1500)
GPU Status	2d_canvas: unavailable_software canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: disabled_software multiple_raster_threads: enabled_on opengl: disabled_off rasterization: disabled_software raw_draw: disabled_off_ok skia_renderer: enabled_on video_decode: disabled_software video_encode: disabled_software vulkan: disabled_off webgl: unavailable_software webgl2: unavailable_software webgpu: disabled_off
Load (avg)	23, 16, 10
Memory (System)	503.71GB (483.60GB free)
Process Argv	--unity-launch --crash-reporter-id 9b58325d-fefe-4c2e-b619-1c36a335bcab
Screen Reader	no
VM	0%
DESKTOP_SESSION	undefined
XDG_CURRENT_DESKTOP	Unity
XDG_SESSION_DESKTOP	undefined
XDG_SESSION_TYPE	x11

Extensions (14)

Extension	Author (truncated)	Version
gitlens	eam	13.5.0
copilot	Git	1.82.15
intellij-idea-keybindings	k--	1.5.9
isort	ms-	2022.8.0
python	ms-	2023.6.0
vscode-pylance	ms-	2023.4.20
jupyter	ms-	2023.3.1201040234
jupyter-keymap	ms-	1.1.0
jupyter-renderers	ms-	1.0.15
vscode-jupyter-cell-tags	ms-	0.1.8
vscode-jupyter-slideshow	ms-	0.1.5
remote-ssh	ms-	0.100.0
remote-ssh-edit	ms-	0.84.0
remote-explorer	ms-	0.4.0

A/B Experiments

vsliv368cf:30146710
vsreu685:30147344
python383:30185418
vspor879:30202332
vspor708:30202333
vspor363:30204092
vslsvsres303:30308271
vserr242cf:30382550
pythontb:30283811
vsjup518:30340749
pythonptprofiler:30281270
vshan820:30294714
vstes263cf:30335440
pythondataviewer:30285071
vscod805cf:30301675
binariesv615:30325510
bridge0708:30335490
bridge0723:30353136
cmake_vspar411:30581797
vsaa593cf:30376535
pythonvs932:30410667
cppdebug:30492333
vscaat:30438848
vsclangdc:30486549
c4g48928:30535728
dsvsc012cf:30540253
pynewext54:30695312
azure-dev_surveyone:30548225
vscccc:30610679
nodejswelcome1cf:30587006
282f8724:30602487
pyind779:30671433
f6dab269:30613381
pythonsymbol12:30671437
vsctsb:30705553
azdwalk:30687957
pythonms35:30701012
pythonclientmvcf:30713944

[karrtikr]

Closing in favor of #21097. We'll try to fix it as soon as we can.