Add basic qusb2snes error handling

Main.py

@@ -16,7 +16,7 @@
 import pickle
 from tempfile import TemporaryDirectory
 
-__version__ = '0.8'
+__version__ = '0.8.1'
 
 # Creates a shuffled MSU-1 pack for ALttP Randomizer from one or more source
 # MSU-1 packs.
@@ -530,7 +530,12 @@ def print_pack(path):
 
 async def query(prevtrack):
  addr = "ws://localhost:8080"
- ws = await websockets.connect(addr, ping_timeout=None, ping_interval=None)
+ try:
+ ws = await websockets.connect(addr, ping_timeout=None, ping_interval=None)
+ except Exception as e:
+ print("Failed to connect to qusb2snes")
+ return 0
+
  devlist = {
  "Opcode": "DeviceList",
  "Space": "SNES"
@@ -539,7 +544,10 @@ async def query(prevtrack):
  reply = json.loads(await ws.recv())
  devices = reply['Results'] if 'Results' in reply and len(reply['Results']) > 0 else None
  if not devices:
- print("Failed to connect to qusb2snes")
+ print("Failed to connect to SNES through qusb2snes")
+ await ws.close()
+ return 0
+
  device = devices[0]
  attachreq = {
  "Opcode": "Attach",