def restart():
#Defines the restart subrouting
    command = "/usr/bin/sudo /sbin/shutdown -r now"
    #This is the reboot command.  Source: my pi just rebooted.
    import subprocess
    #Imports the subprocess commands
    process = subprocess.Popen(command.split(), stdout=subprocess.PIPE)
    process becomes the result of executing 'command'.  No idea what .split() and stdout do here.
    output = process.communicate()[0]
    #Run process?
    print output