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| description: Explore utility functions for Ultralytics YOLO such as checking versions, image sizes, and requirements. |
| keywords: Ultralytics, YOLO, utility functions, version checks, requirements, image size |
| --- |
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| # Reference for `ultralytics/utils/checks.py` |
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| !!! Note |
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| This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/checks.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/checks.py). If you spot a problem please help fix it by [contributing](https://docs.ultralytics.com/help/contributing/) a [Pull Request](https://github.com/ultralytics/ultralytics/edit/main/ultralytics/utils/checks.py) 🛠️. Thank you 🙏! |
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| ## ::: ultralytics.utils.checks.parse_requirements |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.parse_version |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.is_ascii |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_imgsz |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_version |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_latest_pypi_version |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_pip_update_available |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_font |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_python |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_requirements |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_torchvision |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_suffix |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_yolov5u_filename |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_model_file_from_stem |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_file |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_yaml |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_is_path_safe |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_imshow |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_yolo |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.collect_system_info |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.check_amp |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.git_describe |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.print_args |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.cuda_device_count |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.checks.cuda_is_available |
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| <br><br> |
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