Add a get method to config so a default value can be returned

deluge/config.py

@@ -268,6 +268,32 @@ what is currently in the config and it could not convert the value
         else:
             return self.__config[key]
 
+
+    def get(self, key, default=None):
+        """
+        Gets the value of item 'key' if key is in the config, else default.
+        If default is not given, it defaults to None, so that this method
+        never raises a KeyError.
+
+        :param key: the item for which you want it's value
+        :param default: the default value if key is missing
+        :return: the value of item 'key' or default
+
+        **Usage**
+
+        >>> config = Config("test.conf", defaults={"test": 5})
+        >>> config.get("test", 10)
+        5
+        >>> config.get("bad_key", 10)
+        10
+
+        """
+        try:
+            return self.get_item(key)
+        except KeyError:
+            return default
+
+
     def __delitem__(self, key):
         """
         See

deluge/core/core.py

@@ -480,23 +480,12 @@ class Core(component.Component):
     @export
     def get_config_value(self, key):
         """Get the config value for key"""
-        try:
-            value = self.config[key]
-        except KeyError:
-            return None
-
-        return value
+        return self.config.get(key)
 
     @export
     def get_config_values(self, keys):
         """Get the config values for the entered keys"""
-        config = {}
-        for key in keys:
-            try:
-                config[key] = self.config[key]
-            except KeyError:
-                pass
-        return config
+        return {(key, self.config.get(key)) for key in keys}
 
     @export
     def set_config(self, config):

deluge/tests/test_config.py

@@ -34,6 +34,15 @@ class ConfigTestCase(unittest.TestCase):
 
         config._save_timer.cancel()
 
+    def test_get(self):
+        config = Config("test.conf", config_dir=self.config_dir)
+        config["foo"] = 1
+        self.assertEquals(config.get("foo"), 1)
+        self.assertEquals(config.get("foobar"), None)
+        self.assertEquals(config.get("foobar", 2), 2)
+        config["foobar"] = 5
+        self.assertEquals(config.get("foobar", 2), 5)
+
     def test_load(self):
         def check_config():
             config = Config("test.conf", config_dir=self.config_dir)