[all] pylint refinements

Improve code by bringing up the pylint score a bit.

see #23

bumblebee/engine.py

@@ -7,7 +7,7 @@ import importlib
 import bumblebee.error
 import bumblebee.modules
 
-def modules():
+def all_modules():
     """Return a list of available modules"""
     result = []
     path = os.path.dirname(bumblebee.modules.__file__)
@@ -28,7 +28,7 @@ class Module(object):
     def __init__(self, engine, config={}, widgets=[]):
         self.name = self.__module__.split(".")[-1]
         self._config = config
-        if not "name" in self._config:
+        if "name" not in self._config:
             self._config["name"] = self.name
         self._widgets = []
         if widgets:
@@ -68,7 +68,7 @@ class Engine(object):
 
     def load_module(self, module_name, config_name=None):
         """Load specified module and return it as object"""
-        if config_name == None:
+        if config_name is None:
             config_name = module_name
         try:
             module = importlib.import_module("bumblebee.modules.{}".format(module_name))

bumblebee/store.py

@@ -6,13 +6,16 @@ this module
 """
 
 class Store(object):
+    """Interface for storing and retrieving simple values"""
     def __init__(self):
         self._data = {}
 
     def set(self, key, value):
+        """Set 'key' to 'value', overwriting 'key' if it exists already"""
         self._data[key] = value
 
     def get(self, key, default=None):
+        """Return the current value of 'key', or 'default' if 'key' is not set"""
         return self._data.get(key, default)
 
 # vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4

tests/modules/test_modules.py

@@ -3,8 +3,7 @@
 import unittest
 import importlib
 
-from bumblebee.modules.cpu import Module
-from bumblebee.engine import modules
+from bumblebee.engine import all_modules
 from bumblebee.config import Config
 from tests.util import assertWidgetAttributes, MockEngine
 
@@ -13,7 +12,7 @@ class TestGenericModules(unittest.TestCase):
         engine = MockEngine()
         config = Config()
         self.objects = {}
-        for mod in modules():
+        for mod in all_modules():
             cls = importlib.import_module("bumblebee.modules.{}".format(mod["name"]))
             self.objects[mod["name"]] = getattr(cls, "Module")(engine, {"config": config})