[Python] subprocess.Popen giving different results when I run it many times

I am running this code

import subprocess

with open("test.txt", "r") as file:
cmd = file.readline().strip()


print("test")
print(cmd)

with subprocess.Popen(
cmd,
stdout=subprocess.PIPE,
stdin=subprocess.DEVNULL,
stderr=subprocess.DEVNULL,
shell=True,
) as stream:
# version = stream.communicate()[0].decode()
print(stream.communicate()[0])


test.txt is:

powershell -NoProfile "$ErrorActionPreference='silentlycontinue'; $tmp = (Get-Item -Path "$envROGRAMFILES\Google\Chrome\Application\chrome.exe").VersionInfo.FileVersion; if ($tmp) {echo $tmp; Exit;}; $tmp = (Get-Item -Path "${envROGRAMFILES(x86)}\Google\Chrome\Application\chrome.exe").VersionInfo.FileVersion; if ($tmp) {echo $tmp; Exit;}; $tmp = (Get-Item -Path "$env:LOCALAPPDATA\Google\Chrome\Application\chrome.exe").VersionInfo.FileVersion; if ($tmp) {echo $tmp; Exit;};"


and sometimes I get the right result and sometimes I get nothing

This command should return the current chrome version but it just don't sometimes.

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