Coding style.

- Simpler way to do decorators.

fill3/fill3/__init__.py

@@ -413,20 +413,18 @@ EXCEPTION = None
 _LAST_APPEARANCE = []
 
 
-def handle_exception():
-    def decorating_func(func):
-        def wrapper(*args):
-            try:
-                return func(*args)
-            except Exception as exc:
-                global EXCEPTION
-                EXCEPTION = exc
-                SHUTDOWN_EVENT.set()
-        return wrapper
-    return decorating_func
+def handle_exception(func):
+    def wrapper(*args):
+        try:
+            return func(*args)
+        except Exception as exc:
+            global EXCEPTION
+            EXCEPTION = exc
+            SHUTDOWN_EVENT.set()
+    return wrapper
 
 
-@handle_exception()
+@handle_exception
 def draw_screen(widget):
     global _LAST_APPEARANCE
     appearance = widget.appearance(os.get_terminal_size())
@@ -434,7 +432,7 @@ def draw_screen(widget):
     _LAST_APPEARANCE = appearance
 
 
-@handle_exception()
+@handle_exception
 def patch_screen(widget):
     global _LAST_APPEARANCE
     appearance = widget.appearance(os.get_terminal_size())
@@ -453,7 +451,7 @@ async def update_screen(screen_widget):
         APPEARANCE_CHANGED_EVENT.clear()
 
 
-@handle_exception()
+@handle_exception
 def on_terminal_input(screen_widget):
     term_code = sys.stdin.read()
     if term_code.startswith(terminal.MOUSE):