switch to nonlocal in example

Author: victor-shepardson

examples/notepredictor/server.py

@@ -12,7 +12,6 @@
 def main(host="127.0.0.1", port=9999, checkpoint=None):
     osc = OSC(host, port)
 
-    global predictor
     if checkpoint is not None:
         predictor = NotePredictor.from_checkpoint(checkpoint)
         predictor.eval()
@@ -24,13 +23,14 @@ def _(address, **kw):
         """
         Handle OSC messages to Predictor
         """
-        global predictor
         print(f"{address} {kw}")
 
         address = address.split("/")
         cmd = address[2]
 
         if cmd=="load":
+            # `nonlocal` is needed to assign to closed-over name
+            nonlocal predictor
             predictor = NotePredictor.from_checkpoint(**kw)
             predictor.eval()