Update Actions with Lychee and GitHub Token (#12592)

* Add Ultralytics Actions

* Auto-format by Ultralytics actions

* Update format.yml

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>

---------

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>
Co-authored-by: UltralyticsAssistant <web@ultralytics.com>
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

utils/callbacks.py

@@ -1,43 +1,40 @@
 # YOLOv5 🚀 by Ultralytics, AGPL-3.0 license
-"""
-Callback utils
-"""
+"""Callback utils."""
 
 import threading
 
 
 class Callbacks:
-    """"
-    Handles all registered callbacks for YOLOv5 Hooks
-    """
+    """" Handles all registered callbacks for YOLOv5 Hooks."""
 
     def __init__(self):
         # Define the available callbacks
         self._callbacks = {
-            'on_pretrain_routine_start': [],
-            'on_pretrain_routine_end': [],
-            'on_train_start': [],
-            'on_train_epoch_start': [],
-            'on_train_batch_start': [],
-            'optimizer_step': [],
-            'on_before_zero_grad': [],
-            'on_train_batch_end': [],
-            'on_train_epoch_end': [],
-            'on_val_start': [],
-            'on_val_batch_start': [],
-            'on_val_image_end': [],
-            'on_val_batch_end': [],
-            'on_val_end': [],
-            'on_fit_epoch_end': [],  # fit = train + val
-            'on_model_save': [],
-            'on_train_end': [],
-            'on_params_update': [],
-            'teardown': [], }
+            "on_pretrain_routine_start": [],
+            "on_pretrain_routine_end": [],
+            "on_train_start": [],
+            "on_train_epoch_start": [],
+            "on_train_batch_start": [],
+            "optimizer_step": [],
+            "on_before_zero_grad": [],
+            "on_train_batch_end": [],
+            "on_train_epoch_end": [],
+            "on_val_start": [],
+            "on_val_batch_start": [],
+            "on_val_image_end": [],
+            "on_val_batch_end": [],
+            "on_val_end": [],
+            "on_fit_epoch_end": [],  # fit = train + val
+            "on_model_save": [],
+            "on_train_end": [],
+            "on_params_update": [],
+            "teardown": [],
+        }
         self.stop_training = False  # set True to interrupt training
 
-    def register_action(self, hook, name='', callback=None):
+    def register_action(self, hook, name="", callback=None):
         """
-        Register a new action to a callback hook
+        Register a new action to a callback hook.
 
         Args:
             hook: The callback hook name to register the action to
@@ -46,11 +43,11 @@ class Callbacks:
         """
         assert hook in self._callbacks, f"hook '{hook}' not found in callbacks {self._callbacks}"
         assert callable(callback), f"callback '{callback}' is not callable"
-        self._callbacks[hook].append({'name': name, 'callback': callback})
+        self._callbacks[hook].append({"name": name, "callback": callback})
 
     def get_registered_actions(self, hook=None):
-        """"
-        Returns all the registered actions by callback hook
+        """
+        " Returns all the registered actions by callback hook.
 
         Args:
             hook: The name of the hook to check, defaults to all
@@ -59,7 +56,7 @@ class Callbacks:
 
     def run(self, hook, *args, thread=False, **kwargs):
         """
-        Loop through the registered actions and fire all callbacks on main thread
+        Loop through the registered actions and fire all callbacks on main thread.
 
         Args:
             hook: The name of the hook to check, defaults to all
@@ -71,6 +68,6 @@ class Callbacks:
         assert hook in self._callbacks, f"hook '{hook}' not found in callbacks {self._callbacks}"
         for logger in self._callbacks[hook]:
             if thread:
-                threading.Thread(target=logger['callback'], args=args, kwargs=kwargs, daemon=True).start()
+                threading.Thread(target=logger["callback"], args=args, kwargs=kwargs, daemon=True).start()
             else:
-                logger['callback'](*args, **kwargs)
+                logger["callback"](*args, **kwargs)