ultralytics 8.0.48 Edge TPU fix and Metrics updates (#1171)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: majid nasiri <majnasai@gmail.com>

ultralytics/yolo/utils/checks.py

@@ -21,7 +21,7 @@ import torch
 from matplotlib import font_manager
 
 from ultralytics.yolo.utils import (AUTOINSTALL, LOGGER, ROOT, USER_CONFIG_DIR, TryExcept, colorstr, downloads, emojis,
-                                    is_colab, is_docker, is_jupyter)
+                                    is_colab, is_docker, is_jupyter, is_online)
 
 
 def is_ascii(s) -> bool:
@@ -171,21 +171,6 @@ def check_font(font='Arial.ttf'):
         return file
 
 
-def check_online() -> bool:
-    """
-    Check internet connectivity by attempting to connect to a known online host.
-
-    Returns:
-        bool: True if connection is successful, False otherwise.
-    """
-    import socket
-    with contextlib.suppress(Exception):
-        host = socket.gethostbyname('www.github.com')
-        socket.create_connection((host, 80), timeout=2)
-        return True
-    return False
-
-
 def check_python(minimum: str = '3.7.0') -> bool:
     """
     Check current python version against the required minimum version.
@@ -229,7 +214,7 @@ def check_requirements(requirements=ROOT.parent / 'requirements.txt', exclude=()
     if s and install and AUTOINSTALL:  # check environment variable
         LOGGER.info(f"{prefix} YOLOv8 requirement{'s' * (n > 1)} {s}not found, attempting AutoUpdate...")
         try:
-            assert check_online(), 'AutoUpdate skipped (offline)'
+            assert is_online(), 'AutoUpdate skipped (offline)'
             LOGGER.info(subprocess.check_output(f'pip install {s} {cmds}', shell=True).decode())
             s = f"{prefix} {n} package{'s' * (n > 1)} updated per {file or requirements}\n" \
                 f"{prefix} ⚠️ {colorstr('bold', 'Restart runtime or rerun command for updates to take effect')}\n"
@@ -249,13 +234,13 @@ def check_suffix(file='yolov8n.pt', suffix='.pt', msg=''):
                 assert s in suffix, f'{msg}{f} acceptable suffix is {suffix}'
 
 
-def check_yolov5u_filename(file: str):
+def check_yolov5u_filename(file: str, verbose: bool = True):
     # Replace legacy YOLOv5 filenames with updated YOLOv5u filenames
     if 'yolov3' in file or 'yolov5' in file and 'u' not in file:
         original_file = file
         file = re.sub(r'(.*yolov5([nsmlx]))\.', '\\1u.', file)  # i.e. yolov5n.pt -> yolov5nu.pt
         file = re.sub(r'(.*yolov3(|-tiny|-spp))\.', '\\1u.', file)  # i.e. yolov3-spp.pt -> yolov3-sppu.pt
-        if file != original_file:
+        if file != original_file and verbose:
             LOGGER.info(f"PRO TIP 💡 Replace 'model={original_file}' with new 'model={file}'.\nYOLOv5 'u' models are "
                         f'trained with https://github.com/ultralytics/ultralytics and feature improved performance vs '
                         f'standard YOLOv5 models trained with https://github.com/ultralytics/yolov5.\n')