Skip numpy types serialization errors on Message.Encoder.

platypush/message/__init__.py

@@ -34,8 +34,6 @@ class Message:
         def parse_numpy(obj):
             try:
                 import numpy as np
-            except ImportError:
-                return
 
                 if isinstance(obj, np.floating):
                     return float(obj)
@@ -49,6 +47,8 @@ class Message:
                     return '0x' + ''.join([f'{x:02x}' for x in obj])
                 if callable(obj):
                     return '<function at {}.{}>'.format(obj.__module__, obj.__name__)
+            except (ImportError, TypeError):
+                pass
 
             return