Can't find MPV in a Python subprocess

[C-Loftus]

I'm looking to use edge-playback within a Python subprocess (I am in a restricted interpreter used for accessibility software where I can't install extra packages but I can call system binaries) ( so I can't just use the python library for edge-tts)

I was looking to use a subprocess. However, given the way the "mpv" dependency is determined in edge-tts (by using from shutil import which and calling which("mpv") , It doesn't appear that it can find the path correctly

I have a valid (windows) mpv path located at > ~\scoop\apps\mpv\current\mpv.exe and it can launch no issue from cli.
I can run edge-playback no issue from the cli. it can find mpv correctly and play the audio correctly.

The following code however, does not work

import subprocess
p = subprocess.Popen(["edge-playback", "--text", "test sentence"],  shell=True,stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
print(stdout, stderr)

That doesn't work for me and it says b'' b'mpv is not installed.\r\nPlease install the missing dependencies.\r\n'
I'm very confused on this and wondering if anyone knows how to fix this.

since I have the subprocess inheriting the environment from the shell I thought it would have all the correct paths and environment variables

[C-Loftus]

I was able to solve this by simply putting the command in a separate script and then calling the script with

p = subprocess.Popen(["powershell.exe", script_path], shell=True, env=None, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = p.communicate()

I'm not entirely sure what caused this issue but I'm supposing that it is likely just a misunderstanding with regards to subprocesses and shell environments