A simple test of direct commands using ev3py (https://github.com/thiagomarzagao/ev3py).

EV3pyDirectCommand.py

#import modules
import time
from ev3py import ev3

#create a reference to the ev3 called 'mybrick'
mybrick = ev3()

# connect with EV3 via Bluetooth
mybrick.connect('bt') 

#send a series of 3 tones
mybrick.play_tone(100,300,800)
time.sleep(0.5)
mybrick.play_tone(100,500,800)
time.sleep(0.5)
mybrick.play_tone(100,700,800)

#drive tracker in a circle spinning the blade for 10 seconds
mybrick.motor_start('ab',power=20)
mybrick.motor_start('c',power=-20)
time.sleep(10)

#stop
mybrick.motor_stop('abc',stop='coast')
mybrick.disconnect()