Better library logging

utils/scutils/__init__.py

@@ -0,0 +1,10 @@
+# Set default logging handler to avoid "No handler found" warnings.
+import logging
+try:  # Python 2.7+
+    from logging import NullHandler
+except ImportError:
+    class NullHandler(logging.Handler):
+        def emit(self, record):
+            pass
+
+logging.getLogger(__name__).addHandler(NullHandler())

utils/scutils/settings_wrapper.py

@@ -1,6 +1,8 @@
 import importlib
 import imp
 import sys
+import logging
+log = logging.getLogger(__name__)
 
 
 class SettingsWrapper(object):
@@ -46,12 +48,12 @@ def load_from_string(self, settings_string='', module_name='customsettings'):
             mod = imp.new_module(module_name)
             exec settings_string in mod.__dict__
         except TypeError:
-            print "Could not import settings"
+            log.warning("Could not import settings")
         self.my_settings = {}
         try:
             self.my_settings = self._convert_to_dict(mod)
         except ImportError:
-            print "Settings unable to be loaded"
+            log.warning("Settings unable to be loaded")
 
         return self.settings()
 
@@ -73,7 +75,7 @@ def _load_defaults(self, default='settings.py'):
             settings = importlib.import_module(default)
             self.my_settings = self._convert_to_dict(settings)
         except ImportError:
-            print "No default settings found"
+            log.warning("No default settings found")
 
     def _load_custom(self, settings_name='localsettings.py'):
         '''
@@ -88,7 +90,7 @@ def _load_custom(self, settings_name='localsettings.py'):
             settings = importlib.import_module(settings_name)
             new_settings = self._convert_to_dict(settings)
         except ImportError:
-            print "No override settings found"
+            log.info("No override settings found")
 
         for key in new_settings:
             if key in self.my_settings:

utils/scutils/zookeeper_watcher.py

@@ -4,6 +4,8 @@
 import argparse
 import sys
 from time import sleep
+import logging
+log = logging.getLogger(__name__)
 
 
 class ZookeeperWatcher():
@@ -103,7 +105,7 @@ def init_connections(self, no_init=False):
                         self.zoo_client = KazooClient(hosts=self.hosts)
                         self.zoo_client.start()
                 except Exception, e:
-                    print "ZKWatcher Exception:", e
+                    log.error("ZKWatcher Exception: " + e.message)
                     sleep(1)
                     continue