Made imports pythonic

src/core/controller.py

@@ -82,6 +82,6 @@ class Controller(DummyMixin, ControllerData):
 
     def set_clipboard_data(self, data: type) -> None:
         proc = subprocess.Popen(['xclip','-selection','clipboard'], stdin=subprocess.PIPE)
-        proc.stdin.write(data)
+        proc.stdin.write(data.encode("utf-8"))
         proc.stdin.close()
         retcode = proc.wait()

src/core/mixins/dummy_mixin.py

@@ -1,3 +1,12 @@
+# Python imports
+
+# Lib imports
+
+# Application imports
+
+
+
+
 class DummyMixin:
     """ DummyMixin is an example of how mixins are used and structured in a project. """