SWIG: test callback & output grabbing

client/experimental_client_with_swig/testembedded_cb.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+
+import pm3
+p=pm3.pm3()
+
+# PyConsoleHandler class is defined and derived from C++ class ConsoleHandler
+class PyConsoleHandler(pm3.ConsoleHandler):
+    def __init__(self):
+        pm3.ConsoleHandler.__init__(self)
+    def handle_output(self, c):
+        print("PY>>", c, end='')
+        # don't let original print routine pursuing:
+        return 0
+
+#p.console("hw status")
+
+handler = PyConsoleHandler()
+result = p.console_async_wrapper("hw status", handler)
+print(result)
+
+print("Device:", p.name)