app.py

import subprocess

try:
    subprocess.check_call(['pip', 'install', '-r', 'requirements.txt'])
except subprocess.CalledProcessError as e:
    print(f"An error occurred while installing packages: {e}")

command = [
    'python', 'voicevox_engine/run.py',
    '--voicevox_dir=linux-cpu',
    '--host', '0.0.0.0',
    '--port', '50021'
]

result = subprocess.run(command, capture_output=True, text=True)

print("Outputs: \n", result.stdout)
print("Errors: \n", result.stderr)