import subprocess
import sys

venv_python = r"D:\ProgramData\anaconda3\envs\py312_cuda\python.exe"
result = subprocess.run(
    [venv_python, "-m", "pip", "install", "python-pptx"],
    capture_output=True,
    text=True
)
print("STDOUT:", result.stdout)
print("STDERR:", result.stderr)
print("Return code:", result.returncode)