Add notebook_init() to utils/__init__.py (#5488)

* Update __init__.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* notebook_init

* notebook_init

* notebook_init

* notebook_init

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* notebook_init

* Created using Colaboratory

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

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

utils/__init__.py

@@ -0,0 +1,18 @@
+# YOLOv5 🚀 by Ultralytics, GPL-3.0 license
+"""
+utils/initialization
+"""
+
+
+def notebook_init():
+    # For YOLOv5 notebooks
+    print('Checking setup...')
+    from IPython import display  # to display images and clear console output
+
+    from utils.general import emojis
+    from utils.torch_utils import select_device  # YOLOv5 imports
+
+    display.clear_output()
+    select_device(newline=False)
+    print(emojis('Setup complete ✅'))
+    return display

utils/torch_utils.py

@@ -53,7 +53,7 @@ def git_describe(path=Path(__file__).parent):  # path must be a directory
         return ''  # not a git repository
 
 
-def select_device(device='', batch_size=None):
+def select_device(device='', batch_size=None, newline=True):
     # device = 'cpu' or '0' or '0,1,2,3'
     s = f'YOLOv5 🚀 {git_describe() or date_modified()} torch {torch.__version__} '  # string
     device = str(device).strip().lower().replace('cuda:', '')  # to string, 'cuda:0' to '0'
@@ -77,6 +77,8 @@ def select_device(device='', batch_size=None):
     else:
         s += 'CPU\n'
 
+    if not newline:
+        s = s.rstrip()
     LOGGER.info(s.encode().decode('ascii', 'ignore') if platform.system() == 'Windows' else s)  # emoji-safe
     return torch.device('cuda:0' if cuda else 'cpu')