[Trinket]

Just an update.
I have followed what you told me and i realised i was placing the script in the wrong place!
I had it in /home/xbian/.xbmc/addons/ I supposed that i had to store it there because XBMC logs are stored within the same directory, but i still don't know why the correct place is /usr/local/share/xbmc/addons/
Now i have managed to pause downloads when playback starts, but it seems that "onPlayBackEnded" isn't getting called when playback stops, I have yet to fix that issue, will try it tomorrow!
Here is my script, I replaced the while loop as you told, I now undrestand what you told me! Thank you!

Code:

import xbmc
import subprocess,os
class MyPlayer(xbmc.Player) :
        print("[CUSTOM SCRIPT]Checking PlayBackState")
        def __init__ (self):
                xbmc.Player.__init__(self)

        def onPlayBackStarted(self):
                if xbmc.Player().isPlayingVideo():
                        print("[CUSTOM SCRIPT]Video is playing")
                        os.system("sudo python /usr/local/share/xbmc/addons/service.procmanager/resources/stopall.py") #Calls another script to stop proce$

        def onPlayBackEnded(self): #Dosen't seem to get called
                        print("[CUSTOM SCRIPT]Video isn't playing")
                        os.system("sudo python /usr/local/share/xbmc/addons/service.procmanager/resources/startall.py") #Calls another script to start pro$


print("[CUSTOM SCRIPT]**Working**")

player=MyPlayer()

while not xbmc.abortRequested(): #End if XBMC closes
        xbmc.sleep(3000) #Repeat (ms)