[라즈베리파이] Python Sample Code (EventPlayer.py)

#EventPlayer.py
from time import sleep
import os
from subprocess import Popen, PIPE
import RPi.GPIO as GPIO
import pyinotify

GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.IN)
GPIO.setup(27, GPIO.IN)
GPIO.setup(22, GPIO.IN)
GPIO.setup(7, GPIO.IN)
GPIO.setup(8, GPIO.IN)
GPIO.setup(9, GPIO.IN)
GPIO.setup(10, GPIO.IN)
GPIO.setup(11, GPIO.IN)
GPIO.setup(23, GPIO.IN)
GPIO.setup(24, GPIO.IN)
GPIO.setup(18, GPIO.IN)

startDelay = 20
sw = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
swold = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]

p = Popen(['mpg321', '-R', 'n', '-g',  '100'], stdin=PIPE, stdout=PIPE)

wm = pyinotify.WatchManager()
mask = pyinotify.IN_DELETE | pyinotify.IN_CREATE

class EventHandler(pyinotify.ProcessEvent):
def process_IN_CREATE(self, event):
print "Create: %s" % event.pathname
p.stdin.write('STOP\n')


def process_IN_DELETE(self, event):
print "Remove: %s" % event.pathname
p.stdin.write('STOP\n')

notifier = pyinotify.ThreadedNotifier(wm, EventHandler())
notifier.start()

wdd = wm.add_watch('/media', mask, rec=True)

while True:
sw[0] = GPIO.input(17)
sw[1] = GPIO.input(27)
sw[2] = GPIO.input(22)
sw[3] = GPIO.input(7)
sw[4] = GPIO.input(8)
sw[5] = GPIO.input(9)
sw[6] = GPIO.input(10)
sw[7] = GPIO.input(11)
sw[8] = GPIO.input(23)
sw[9] = GPIO.input(24)
sw[10] = GPIO.input(18)

sleep(0.1)

if( startDelay == 0 ):
for x in range(0, 9):
if( (swold[x] == 1) and (sw[x] == 0) ):
printstr = 'clicked' + str(x)
print(printstr)
cmdStr = 'LOAD /home/pi/Pops/00' + str(x+1) + '.mp3\n'
p.stdin.write(cmdStr)
if( (swold[9] == 1) and (sw[9] == 0) ):
print('clicked Stop')
p.stdin.write('STOP\n')
if( (swold[10] == 1) and (sw[10] == 0) ):
print('clicked Quit')
p.stdin.write('QUIT\n')
wm.rm_watch(wdd.values())
notifier.stop()
exit()
else:
startDelay = startDelay - 1

for x in range(0, 11): swold[x] = sw[x]