Logging example for python

Provide a small example for logging.

Signed-off-by: Luca Bigliardi <shammash@artha.org>

scripts/python/examples/python_logger.py

@@ -0,0 +1,30 @@
+import freej
+
+class MyLogger(freej.WrapperLogger):
+  """ This is a basic example for a python logger.
+
+  """
+
+  def __init__(self, *args):
+    super(MyLogger, self).__init__(*args)
+
+  def logmsg(self, level, msg):
+    """ Override this method to handle log messages
+    
+    """
+    if level == freej.ERROR:
+      print "ERROR from python: %s" % msg
+    else:
+      print "I will just print: %s" % msg
+
+
+m = MyLogger()
+
+# Register in GlobalLogger to have all messages redirected to your logger (you
+# can also register to an instance of a Loggable subclass to receive only
+# messages from that object).
+freej.GlobalLogger.register_logger(m)
+
+# Set the maximum loglevel GlobalLogger should print/redirect
+freej.GlobalLogger.set_loglevel(freej.DEBUG)
+