Update movie listers example

examples/miniapps/movie_lister/README.rst

@@ -1,7 +1,7 @@
 A naive example of dependency injection in Python
 =================================================
 
-Example implementation of dependency injection in Python from Martin Fowler's
+Example implementation of dependency injection on Python from Martin Fowler's
 article about dependency injection and inversion of control:
 
 http://www.martinfowler.com/articles/injection.html
@@ -11,7 +11,8 @@ Instructions for running:
 
 .. code-block:: bash
 
-    python _create_db.py
+    python create_db.py
 
     python app_csv.py
     python app_db.py
+    python app_db_csv.py

examples/miniapps/movie_lister/movies/listers.py

@@ -17,7 +17,7 @@ class MovieLister(object):
         :param movie_finder: Movie finder instance
         :type movie_finder: movies.finders.MovieFinder
         """
-        self.movie_finder = movie_finder
+        self._movie_finder = movie_finder
 
     def movies_directed_by(self, director):
         """Return list of movies that were directed by certain person.
@@ -28,7 +28,7 @@ class MovieLister(object):
         :rtype: list[movies.models.Movie]
         :return: List of movie instances.
         """
-        return [movie for movie in self.movie_finder.find_all()
+        return [movie for movie in self._movie_finder.find_all()
                 if movie.director == director]
 
     def movies_released_in(self, year):
@@ -40,5 +40,5 @@ class MovieLister(object):
         :rtype: list[movies.models.Movie]
         :return: List of movie instances.
         """
-        return [movie for movie in self.movie_finder.find_all()
+        return [movie for movie in self._movie_finder.find_all()
                 if movie.year == year]