[modules] re-enable todo

modules/contrib/todo.py

@@ -0,0 +1,45 @@
+# pylint: disable=C0111,R0903
+
+"""Displays the number of todo items from a text file
+
+Parameters:
+    * todo.file: File to read TODOs from (defaults to ~/Documents/todo.txt)
+"""
+
+import bumblebee.input
+import bumblebee.output
+import bumblebee.engine
+import os.path
+
+
+class Module(bumblebee.engine.Module):
+
+
+    def __init__(self, engine, config):
+        super(Module, self).__init__(engine, config,
+            bumblebee.output.Widget(full_text=self.output)
+        )
+        self._doc = os.path.expanduser(self.parameter("file", "~/Documents/todo.txt"))
+        self._todos = self.count_items()
+
+
+    def output(self, widget):
+       self._todos = self.count_items()
+       return str(self._todos)
+
+
+    def state(self, widgets):
+        if self._todos == 0:
+            return "empty"
+        return "items"
+
+
+    def count_items(self):
+        try:
+            i = -1
+            with open(self._doc) as f:
+                for i, l in enumerate(f):
+                    pass
+            return i+1
+        except Exception:
+            return 0