Python 3 how not to output operations with os, sys, subprocess modules to the console?

Question

Python

One of the code examples that I'm running but don't want to output anything to the terminal:

def j_say(phrase):
    os.system('curl "https://tts.voicetech.yandex.net/generate?format=wav&lang=ru-RU&speaker=zahar&emotion=good&key=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" -G --data-urlencode "text=' + phrase + '" > j_speech.wav')
    os.system('aplay j_speech.wav')

And it outputs this:

% Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  133k    0  133k    0     0   496k      0 --:--:-- --:--:-- --:--:--  496k
Воспроизведение WAVE 'j_speech.wav' : Signed 16 bit Little Endian, Частота 48000 Гц, Моно

Thank you!

Answer 1

os, sys, subprocess

Mixed into a bunch of horses and people. The output of commands run through subprocessis controlled via the stderr/stdout options of the Popen class constructor, just by default the output will be merged with the main program.
Learn to read documentation.

Answer 2

Try this.
Drink for yourself, read about subprocess. There the dock is understandable.

import os,sys,subprocess


def j_say(phrase):
  
    arg = subprocess.Popen(['curl','--basic','pornhub.com'],stdout=subprocess.PIPE,stderr=subprocess.STDOUT)
    return arg.stdout.read().decode("cp866")


print(j_say(('abr')))

Remove print() and the output to the terminal will disappear.