[Python] Multiple commands separated by newline in subprocess.Popen() with shell=True not...

I'm trying to execute commands on the shell via Python on Windows and Linux and noticed a significant difference:

import subprocess

r = subprocess.run("echo 1\r\necho 2", shell=True, capture_output=True, text=True)
print(r.stdout)


On Windows, it prints

1


while on Linux it prints

1
2


as expected.

Why is the second echo not executed on Windows? I thought shell=True would allow multiple command like in a Batch/Shell script.

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