title: Python script controlling mpd with utf-8 charset systemd doesnt work
body: <p>I've installed MPD on a Raspberry Pi and wrote a Python script to play a playlist when a RFID card was scanned.</p>
  
  <p>My problem is that the script works fine when I call it in the console. It plays every playlist. But when it's started as a service I can only play playlists without <code>äöüß</code> utf8-charset.</p>
  
  <p>My question is now how can i make the script work for utf-8 playlists as a service?</p>
  
  <p>Here my script:</p>
  
  <pre><code>#!/usr/bin/python
  # coding=utf-8
  import io
  import os
  import serial
  from mpd import MPDClient
  
  with io.open("/var/lib/mpd/mnt/playlists/liste.txt", "r", encoding="utf8") as f:
          list = f.read()
  list = list.strip()
  list = list.replace("\n","")
  list = list[:-1].split(";")
  
  while True:
          ser = serial.Serial("/dev/serial0", baudrate=9600)
          rfid = ser.read(14)
  
          try:
                  tag = { "raw" : rfid,
                          "mfr" : int(rfid[1:5], 16),
                          "id" : int(rfid[5:11], 16),
                          "chk" : int(rfid[11:13], 16)}
  
                  print "Read Card : %s" % tag['id']
  
                  cardnr = str(tag['id'])
                  listid = list.index(cardnr)
  
                  print(cardnr)
  
                  plist = list[listid-1]
  
                  print(plist)
  
                  client = MPDClient()
                  client.timeout = 10
                  client.idletimeout = None
                  client.connect("localhost", 6600)
                  client.update()
  
                  print "Connected..."
  
                  client.clear()
                  print "cleared"
                  client.load(plist)
                  print(client.playlist())
                  print "Playlist geladen"
                  client.play(0)
                  print "Abspielen"
                  client.close()
                  client.disconnect()
  
          except:
                  print "error"
  </code></pre>
  
  <p>systemd service:</p>
  
  <pre><code>[Unit]
  Description=Listen to RFID-reader and play mopidy playlists
  Requires=mpd.service networking.service
  After=mpd.service networking.service
  
  [Service]
  Type=idle
  Restart=always
  ExecStart=/usr/bin/python /var/lib/mpd/mnt/scripts/play.py
  
  [Install]
  WantedBy=multi-user.target
  </code></pre>
  
  <p>output of locale:</p>
  
  <pre><code>LANG=de_DE.UTF-8
  LANGUAGE=de_DE.UTF-8
  LC_CTYPE="de_DE.UTF-8"
  LC_NUMERIC="de_DE.UTF-8"
  LC_TIME="de_DE.UTF-8"
  LC_COLLATE="de_DE.UTF-8"
  LC_MONETARY="de_DE.UTF-8"
  LC_MESSAGES="de_DE.UTF-8"
  LC_PAPER="de_DE.UTF-8"
  LC_NAME="de_DE.UTF-8"
  LC_ADDRESS="de_DE.UTF-8"
  LC_TELEPHONE="de_DE.UTF-8"
  LC_MEASUREMENT="de_DE.UTF-8"
  LC_IDENTIFICATION="de_DE.UTF-8"
  LC_ALL=
  </code></pre>