diff --git a/src/Example.py b/src/Example.py
deleted file mode 100644
index f0da4cc..0000000
--- a/src/Example.py
+++ /dev/null
@@ -1,27 +0,0 @@
-from shellfm.windows.controller import WindowController
-
-
-def main():
-    print("\n\n-------------------------------------------\n\n")
-    window_controller = WindowController()
-
-    # Create "File Window" 1
-    window          = window_controller.create_window()
-    window.set_nickname("Win1")
-    window_controller.add_tab_for_window_by_nickname(window.get_nickname())
-
-    # Create "File Window" 2
-    window2          = window_controller.create_window()
-    window2.set_nickname("Win2")
-    window_controller.add_tab_for_window_by_nickname(window2.get_nickname())
-
-    window_controller.list_windows()
-
-
-    print("\n\n-------------------------------------------\n\n")
-    window2.set_is_hidden(True)
-    window_controller.list_windows()
-
-
-if __name__ == '__main__':
-    main()
diff --git a/src/shellfm/windows/controller.py b/src/shellfm/windows/controller.py
index abec786..4329a11 100644
--- a/src/shellfm/windows/controller.py
+++ b/src/shellfm/windows/controller.py
@@ -17,8 +17,8 @@ def threaded(fn):
 class WindowController:
     def __init__(self):
         USER_HOME               = path.expanduser('~')
-        CONFIG_PATH             = USER_HOME   + "/.config/solarfm"
-        self._session_file      = CONFIG_PATH + "/session.json"
+        CONFIG_PATH             = f"{USER_HOME}/.config/solarfm"
+        self._session_file      = f"{CONFIG_PATH}/session.json"
 
         self._event_sleep_time  = 1
         self._active_window_id  = ""
@@ -35,7 +35,7 @@ class WindowController:
 
     def create_window(self):
         window = Window()
-        window.set_nickname(f"window_{str(len(self._windows) + 1)}")
+        window.set_nickname(f"window_{len(self._windows) + 1}")
         self._windows.append(window)
         return window