Validate arguments passed as dict to settings.update() (#18337)

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>

ultralytics/utils/__init__.py

@@ -12,12 +12,12 @@ import subprocess
 import sys
 import threading
 import time
-import urllib
 import uuid
 from pathlib import Path
 from threading import Lock
 from types import SimpleNamespace
 from typing import Union
+from urllib.parse import unquote
 
 import cv2
 import matplotlib.pyplot as plt
@@ -1130,7 +1130,8 @@ class JSONDict(dict):
 
     def __str__(self):
         """Return a pretty-printed JSON string representation of the dictionary."""
-        return f'JSONDict("{self.file_path}"):\n{json.dumps(dict(self), indent=2, ensure_ascii=False, default=self._json_default)}'
+        contents = json.dumps(dict(self), indent=2, ensure_ascii=False, default=self._json_default)
+        return f'JSONDict("{self.file_path}"):\n{contents}'
 
     def update(self, *args, **kwargs):
         """Update the dictionary and persist changes."""
@@ -1238,14 +1239,23 @@ class SettingsManager(JSONDict):
                 f"Please change one to avoid possible issues during training. {self.help_msg}"
             )
 
+    def __setitem__(self, key, value):
+        """Updates one key: value pair."""
+        self.update({key: value})
+
     def update(self, *args, **kwargs):
         """Updates settings, validating keys and types."""
+        for arg in args:
+            if isinstance(arg, dict):
+                kwargs.update(arg)
         for k, v in kwargs.items():
             if k not in self.defaults:
                 raise KeyError(f"No Ultralytics setting '{k}'. {self.help_msg}")
             t = type(self.defaults[k])
             if not isinstance(v, t):
-                raise TypeError(f"Ultralytics setting '{k}' must be of type '{t}', not '{type(v)}'. {self.help_msg}")
+                raise TypeError(
+                    f"Ultralytics setting '{k}' must be '{t.__name__}' type, not '{type(v).__name__}'. {self.help_msg}"
+                )
         super().update(*args, **kwargs)
 
     def reset(self):
@@ -1265,7 +1275,7 @@ def deprecation_warn(arg, new_arg=None):
 def clean_url(url):
     """Strip auth from URL, i.e. https://url.com/file.txt?auth -> https://url.com/file.txt."""
     url = Path(url).as_posix().replace(":/", "://")  # Pathlib turns :// -> :/, as_posix() for Windows
-    return urllib.parse.unquote(url).split("?")[0]  # '%2F' to '/', split https://url.com/file.txt?auth
+    return unquote(url).split("?")[0]  # '%2F' to '/', split https://url.com/file.txt?auth
 
 
 def url2file(url):