Alexeytur

max_child_processes = 100
child_processes = []
for i, row in df.iterrows():
    while len(child_processes ) >= max_child_processes:
        sleep(0.1)
        child_processes = [p for p in child_processes if p.poll() is None]
    path = row.path
    subp = subprocess.Popen(f"echo {password} | sudo -S ./recog_wav.sh {path}",
                    stdin=subprocess.PIPE, stdout=subprocess.PIPE, shell=True)
    child_processes.appen(subp)