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Referans için ultralytics/utils/checks.py

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Bu dosya https://github.com/ultralytics/ultralytics/blob/main/ ultralytics/utils/checks .py adresinde mevcuttur. Bir sorun tespit ederseniz lütfen bir Çekme İsteği 🛠️ ile katkıda bulunarak düzeltilmesine yardımcı olun. Teşekkürler 🙏!



ultralytics.utils.checks.parse_requirements(file_path=ROOT.parent / 'requirements.txt', package='')

Bir requirements.txt dosyasını, '#' ile başlayan satırları ve '#'den sonraki tüm metinleri yok sayarak ayrıştırın.

Parametreler:

İsim Tip Açıklama Varsayılan
file_path Path

requirements.txt dosyasının yolu.

parent / 'requirements.txt'
package str

Python requirements.txt dosyası yerine kullanılacak paket, yani package='ultralytics'.

''

İade:

Tip Açıklama
List[Dict[str, str]]

ile sözlük olarak ayrıştırılmış gereksinimlerin listesi name ve specifier Anahtarlar.

Örnek
from ultralytics.utils.checks import parse_requirements

parse_requirements(package='ultralytics')
Kaynak kodu ultralytics/utils/checks.py
def parse_requirements(file_path=ROOT.parent / "requirements.txt", package=""):
    """
    Parse a requirements.txt file, ignoring lines that start with '#' and any text after '#'.

    Args:
        file_path (Path): Path to the requirements.txt file.
        package (str, optional): Python package to use instead of requirements.txt file, i.e. package='ultralytics'.

    Returns:
        (List[Dict[str, str]]): List of parsed requirements as dictionaries with `name` and `specifier` keys.

    Example:
        ```python
        from ultralytics.utils.checks import parse_requirements

        parse_requirements(package='ultralytics')
        ```
    """

    if package:
        requires = [x for x in metadata.distribution(package).requires if "extra == " not in x]
    else:
        requires = Path(file_path).read_text().splitlines()

    requirements = []
    for line in requires:
        line = line.strip()
        if line and not line.startswith("#"):
            line = line.split("#")[0].strip()  # ignore inline comments
            match = re.match(r"([a-zA-Z0-9-_]+)\s*([<>!=~]+.*)?", line)
            if match:
                requirements.append(SimpleNamespace(name=match[1], specifier=match[2].strip() if match[2] else ""))

    return requirements



ultralytics.utils.checks.parse_version(version='0.0.0')

Bir sürüm dizesini, sürüme eklenmiş sayısal olmayan herhangi bir ekstra dizeyi yok sayarak bir tamsayı çiftine dönüştürür. Bu işlevi kullanımdan kaldırılan 'pkg_resources.parse_version(v)' işlevinin yerini alır.

Parametreler:

İsim Tip Açıklama Varsayılan
version str

Sürüm dizesi, örneğin '2.0.1+cpu'

'0.0.0'

İade:

Tip Açıklama
tuple

Sürümün sayısal kısmını ve ekstra dizeyi temsil eden tamsayılar kümesi, yani (2, 0, 1)

Kaynak kodu ultralytics/utils/checks.py
def parse_version(version="0.0.0") -> tuple:
    """
    Convert a version string to a tuple of integers, ignoring any extra non-numeric string attached to the version. This
    function replaces deprecated 'pkg_resources.parse_version(v)'.

    Args:
        version (str): Version string, i.e. '2.0.1+cpu'

    Returns:
        (tuple): Tuple of integers representing the numeric part of the version and the extra string, i.e. (2, 0, 1)
    """
    try:
        return tuple(map(int, re.findall(r"\d+", version)[:3]))  # '2.0.1+cpu' -> (2, 0, 1)
    except Exception as e:
        LOGGER.warning(f"WARNING ⚠️ failure for parse_version({version}), returning (0, 0, 0): {e}")
        return 0, 0, 0



ultralytics.utils.checks.is_ascii(s)

Bir dizenin yalnızca ASCII karakterlerinden oluşup oluşmadığını kontrol edin.

Parametreler:

İsim Tip Açıklama Varsayılan
s str

Kontrol edilecek dize.

gerekli

İade:

Tip Açıklama
bool

Dize yalnızca ASCII karakterlerinden oluşuyorsa True, aksi takdirde False.

Kaynak kodu ultralytics/utils/checks.py
def is_ascii(s) -> bool:
    """
    Check if a string is composed of only ASCII characters.

    Args:
        s (str): String to be checked.

    Returns:
        (bool): True if the string is composed only of ASCII characters, False otherwise.
    """
    # Convert list, tuple, None, etc. to string
    s = str(s)

    # Check if the string is composed of only ASCII characters
    return all(ord(c) < 128 for c in s)



ultralytics.utils.checks.check_imgsz(imgsz, stride=32, min_dim=1, max_dim=2, floor=0)

Görüntü boyutunun her boyutta verilen adımın katı olduğunu doğrulayın. Eğer görüntü boyutu stride, verilen taban değerinden büyük veya ona eşit olan stride'ın en yakın katına güncelleyin.

Parametreler:

İsim Tip Açıklama Varsayılan
imgsz int | cList[int]

Resim boyutu.

gerekli
stride int

Adım değeri.

32
min_dim int

Minimum boyut sayısı.

1
max_dim int

Maksimum boyut sayısı.

2
floor int

Görüntü boyutu için izin verilen minimum değer.

0

İade:

Tip Açıklama
List[int]

Görüntü boyutu güncellendi.

Kaynak kodu ultralytics/utils/checks.py
def check_imgsz(imgsz, stride=32, min_dim=1, max_dim=2, floor=0):
    """
    Verify image size is a multiple of the given stride in each dimension. If the image size is not a multiple of the
    stride, update it to the nearest multiple of the stride that is greater than or equal to the given floor value.

    Args:
        imgsz (int | cList[int]): Image size.
        stride (int): Stride value.
        min_dim (int): Minimum number of dimensions.
        max_dim (int): Maximum number of dimensions.
        floor (int): Minimum allowed value for image size.

    Returns:
        (List[int]): Updated image size.
    """
    # Convert stride to integer if it is a tensor
    stride = int(stride.max() if isinstance(stride, torch.Tensor) else stride)

    # Convert image size to list if it is an integer
    if isinstance(imgsz, int):
        imgsz = [imgsz]
    elif isinstance(imgsz, (list, tuple)):
        imgsz = list(imgsz)
    elif isinstance(imgsz, str):  # i.e. '640' or '[640,640]'
        imgsz = [int(imgsz)] if imgsz.isnumeric() else eval(imgsz)
    else:
        raise TypeError(
            f"'imgsz={imgsz}' is of invalid type {type(imgsz).__name__}. "
            f"Valid imgsz types are int i.e. 'imgsz=640' or list i.e. 'imgsz=[640,640]'"
        )

    # Apply max_dim
    if len(imgsz) > max_dim:
        msg = (
            "'train' and 'val' imgsz must be an integer, while 'predict' and 'export' imgsz may be a [h, w] list "
            "or an integer, i.e. 'yolo export imgsz=640,480' or 'yolo export imgsz=640'"
        )
        if max_dim != 1:
            raise ValueError(f"imgsz={imgsz} is not a valid image size. {msg}")
        LOGGER.warning(f"WARNING ⚠️ updating to 'imgsz={max(imgsz)}'. {msg}")
        imgsz = [max(imgsz)]
    # Make image size a multiple of the stride
    sz = [max(math.ceil(x / stride) * stride, floor) for x in imgsz]

    # Print warning message if image size was updated
    if sz != imgsz:
        LOGGER.warning(f"WARNING ⚠️ imgsz={imgsz} must be multiple of max stride {stride}, updating to {sz}")

    # Add missing dimensions if necessary
    sz = [sz[0], sz[0]] if min_dim == 2 and len(sz) == 1 else sz[0] if min_dim == 1 and len(sz) == 1 else sz

    return sz



ultralytics.utils.checks.check_version(current='0.0.0', required='0.0.0', name='version', hard=False, verbose=False, msg='')

Mevcut sürümü gerekli sürüm veya aralıkla karşılaştırın.

Parametreler:

İsim Tip Açıklama Varsayılan
current str

Sürümü almak için geçerli sürüm veya paket adı.

'0.0.0'
required str

Gerekli sürüm veya aralık (pip tarzı formatta).

'0.0.0'
name str

Uyarı mesajında kullanılacak ad.

'version'
hard bool

True ise, gereksinim karşılanmazsa bir AssertionError yükseltir.

False
verbose bool

True ise, gereksinim karşılanmazsa uyarı mesajı yazdırır.

False
msg str

Ayrıntılı ise görüntülenecek ekstra mesaj.

''

İade:

Tip Açıklama
bool

Gereksinim karşılanırsa True, aksi takdirde False.

Örnek
# Check if current version is exactly 22.04
check_version(current='22.04', required='==22.04')

# Check if current version is greater than or equal to 22.04
check_version(current='22.10', required='22.04')  # assumes '>=' inequality if none passed

# Check if current version is less than or equal to 22.04
check_version(current='22.04', required='<=22.04')

# Check if current version is between 20.04 (inclusive) and 22.04 (exclusive)
check_version(current='21.10', required='>20.04,<22.04')
Kaynak kodu ultralytics/utils/checks.py
def check_version(
    current: str = "0.0.0",
    required: str = "0.0.0",
    name: str = "version",
    hard: bool = False,
    verbose: bool = False,
    msg: str = "",
) -> bool:
    """
    Check current version against the required version or range.

    Args:
        current (str): Current version or package name to get version from.
        required (str): Required version or range (in pip-style format).
        name (str, optional): Name to be used in warning message.
        hard (bool, optional): If True, raise an AssertionError if the requirement is not met.
        verbose (bool, optional): If True, print warning message if requirement is not met.
        msg (str, optional): Extra message to display if verbose.

    Returns:
        (bool): True if requirement is met, False otherwise.

    Example:
        ```python
        # Check if current version is exactly 22.04
        check_version(current='22.04', required='==22.04')

        # Check if current version is greater than or equal to 22.04
        check_version(current='22.10', required='22.04')  # assumes '>=' inequality if none passed

        # Check if current version is less than or equal to 22.04
        check_version(current='22.04', required='<=22.04')

        # Check if current version is between 20.04 (inclusive) and 22.04 (exclusive)
        check_version(current='21.10', required='>20.04,<22.04')
        ```
    """
    if not current:  # if current is '' or None
        LOGGER.warning(f"WARNING ⚠️ invalid check_version({current}, {required}) requested, please check values.")
        return True
    elif not current[0].isdigit():  # current is package name rather than version string, i.e. current='ultralytics'
        try:
            name = current  # assigned package name to 'name' arg
            current = metadata.version(current)  # get version string from package name
        except metadata.PackageNotFoundError as e:
            if hard:
                raise ModuleNotFoundError(emojis(f"WARNING ⚠️ {current} package is required but not installed")) from e
            else:
                return False

    if not required:  # if required is '' or None
        return True

    op = ""
    version = ""
    result = True
    c = parse_version(current)  # '1.2.3' -> (1, 2, 3)
    for r in required.strip(",").split(","):
        op, version = re.match(r"([^0-9]*)([\d.]+)", r).groups()  # split '>=22.04' -> ('>=', '22.04')
        v = parse_version(version)  # '1.2.3' -> (1, 2, 3)
        if op == "==" and c != v:
            result = False
        elif op == "!=" and c == v:
            result = False
        elif op in {">=", ""} and not (c >= v):  # if no constraint passed assume '>=required'
            result = False
        elif op == "<=" and not (c <= v):
            result = False
        elif op == ">" and not (c > v):
            result = False
        elif op == "<" and not (c < v):
            result = False
    if not result:
        warning = f"WARNING ⚠️ {name}{op}{version} is required, but {name}=={current} is currently installed {msg}"
        if hard:
            raise ModuleNotFoundError(emojis(warning))  # assert version requirements met
        if verbose:
            LOGGER.warning(warning)
    return result



ultralytics.utils.checks.check_latest_pypi_version(package_name='ultralytics')

Bir PyPI paketinin en son sürümünü indirmeden veya yüklemeden döndürür.

Parametreler:

İsim Tip Açıklama Varsayılan
package_name str

En son sürümü bulunacak paketin adı.

'ultralytics'

İade:

Tip Açıklama
str

Paketin en son sürümü.

Kaynak kodu ultralytics/utils/checks.py
def check_latest_pypi_version(package_name="ultralytics"):
    """
    Returns the latest version of a PyPI package without downloading or installing it.

    Parameters:
        package_name (str): The name of the package to find the latest version for.

    Returns:
        (str): The latest version of the package.
    """
    with contextlib.suppress(Exception):
        requests.packages.urllib3.disable_warnings()  # Disable the InsecureRequestWarning
        response = requests.get(f"https://pypi.org/pypi/{package_name}/json", timeout=3)
        if response.status_code == 200:
            return response.json()["info"]["version"]



ultralytics.utils.checks.check_pip_update_available()

PyPI'da ultralytics paketinin yeni bir sürümünün mevcut olup olmadığını kontrol eder.

İade:

Tip Açıklama
bool

Bir güncelleme mevcutsa True, aksi takdirde False.

Kaynak kodu ultralytics/utils/checks.py
def check_pip_update_available():
    """
    Checks if a new version of the ultralytics package is available on PyPI.

    Returns:
        (bool): True if an update is available, False otherwise.
    """
    if ONLINE and IS_PIP_PACKAGE:
        with contextlib.suppress(Exception):
            from ultralytics import __version__

            latest = check_latest_pypi_version()
            if check_version(__version__, f"<{latest}"):  # check if current version is < latest version
                LOGGER.info(
                    f"New https://pypi.org/project/ultralytics/{latest} available 😃 "
                    f"Update with 'pip install -U ultralytics'"
                )
                return True
    return False



ultralytics.utils.checks.check_font(font='Arial.ttf')

Yazı tipini yerel olarak bulun veya zaten mevcut değilse kullanıcının yapılandırma dizinine indirin.

Parametreler:

İsim Tip Açıklama Varsayılan
font str

Yazı tipinin yolu veya adı.

'Arial.ttf'

İade:

İsim Tip Açıklama
file Path

Yazı tipi dosya yolu çözüldü.

Kaynak kodu ultralytics/utils/checks.py
@ThreadingLocked()
def check_font(font="Arial.ttf"):
    """
    Find font locally or download to user's configuration directory if it does not already exist.

    Args:
        font (str): Path or name of font.

    Returns:
        file (Path): Resolved font file path.
    """
    from matplotlib import font_manager

    # Check USER_CONFIG_DIR
    name = Path(font).name
    file = USER_CONFIG_DIR / name
    if file.exists():
        return file

    # Check system fonts
    matches = [s for s in font_manager.findSystemFonts() if font in s]
    if any(matches):
        return matches[0]

    # Download to USER_CONFIG_DIR if missing
    url = f"https://ultralytics.com/assets/{name}"
    if downloads.is_url(url, check=True):
        downloads.safe_download(url=url, file=file)
        return file



ultralytics.utils.checks.check_python(minimum='3.8.0')

Geçerli python sürümünü gerekli minimum sürümle karşılaştırın.

Parametreler:

İsim Tip Açıklama Varsayılan
minimum str

Gerekli minimum sürüm python.

'3.8.0'

İade:

Tip Açıklama
bool

Yüklü Python sürümünün minimum kısıtlamaları karşılayıp karşılamadığı.

Kaynak kodu ultralytics/utils/checks.py
def check_python(minimum: str = "3.8.0") -> bool:
    """
    Check current python version against the required minimum version.

    Args:
        minimum (str): Required minimum version of python.

    Returns:
        (bool): Whether the installed Python version meets the minimum constraints.
    """
    return check_version(PYTHON_VERSION, minimum, name="Python ", hard=True)



ultralytics.utils.checks.check_requirements(requirements=ROOT.parent / 'requirements.txt', exclude=(), install=True, cmds='')

Yüklü bağımlılıkların YOLOv8 gereksinimlerini karşılayıp karşılamadığını kontrol edin ve gerekirse otomatik güncellemeyi deneyin.

Parametreler:

İsim Tip Açıklama Varsayılan
requirements Union[Path, str, List[str]]

requirements.txt dosyasına giden yol, tek bir paket gereksinimi olarak dizesi veya dizeler olarak paket gereksinimlerinin bir listesi.

parent / 'requirements.txt'
exclude Tuple[str]

Kontrolden hariç tutulacak paket adları demeti.

()
install bool

True ise, gereksinimleri karşılamayan paketleri otomatik olarak güncellemeyi deneyin.

True
cmds str

Otomatik güncelleme sırasında pip install komutuna iletilecek ek komutlar.

''
Örnek
from ultralytics.utils.checks import check_requirements

# Check a requirements.txt file
check_requirements('path/to/requirements.txt')

# Check a single package
check_requirements('ultralytics>=8.0.0')

# Check multiple packages
check_requirements(['numpy', 'ultralytics>=8.0.0'])
Kaynak kodu ultralytics/utils/checks.py
@TryExcept()
def check_requirements(requirements=ROOT.parent / "requirements.txt", exclude=(), install=True, cmds=""):
    """
    Check if installed dependencies meet YOLOv8 requirements and attempt to auto-update if needed.

    Args:
        requirements (Union[Path, str, List[str]]): Path to a requirements.txt file, a single package requirement as a
            string, or a list of package requirements as strings.
        exclude (Tuple[str]): Tuple of package names to exclude from checking.
        install (bool): If True, attempt to auto-update packages that don't meet requirements.
        cmds (str): Additional commands to pass to the pip install command when auto-updating.

    Example:
        ```python
        from ultralytics.utils.checks import check_requirements

        # Check a requirements.txt file
        check_requirements('path/to/requirements.txt')

        # Check a single package
        check_requirements('ultralytics>=8.0.0')

        # Check multiple packages
        check_requirements(['numpy', 'ultralytics>=8.0.0'])
        ```
    """

    prefix = colorstr("red", "bold", "requirements:")
    check_python()  # check python version
    check_torchvision()  # check torch-torchvision compatibility
    if isinstance(requirements, Path):  # requirements.txt file
        file = requirements.resolve()
        assert file.exists(), f"{prefix} {file} not found, check failed."
        requirements = [f"{x.name}{x.specifier}" for x in parse_requirements(file) if x.name not in exclude]
    elif isinstance(requirements, str):
        requirements = [requirements]

    pkgs = []
    for r in requirements:
        r_stripped = r.split("/")[-1].replace(".git", "")  # replace git+https://org/repo.git -> 'repo'
        match = re.match(r"([a-zA-Z0-9-_]+)([<>!=~]+.*)?", r_stripped)
        name, required = match[1], match[2].strip() if match[2] else ""
        try:
            assert check_version(metadata.version(name), required)  # exception if requirements not met
        except (AssertionError, metadata.PackageNotFoundError):
            pkgs.append(r)

    s = " ".join(f'"{x}"' for x in pkgs)  # console string
    if s:
        if install and AUTOINSTALL:  # check environment variable
            n = len(pkgs)  # number of packages updates
            LOGGER.info(f"{prefix} Ultralytics requirement{'s' * (n > 1)} {pkgs} not found, attempting AutoUpdate...")
            try:
                t = time.time()
                assert ONLINE, "AutoUpdate skipped (offline)"
                with Retry(times=2, delay=1):  # run up to 2 times with 1-second retry delay
                    LOGGER.info(subprocess.check_output(f"pip install --no-cache {s} {cmds}", shell=True).decode())
                dt = time.time() - t
                LOGGER.info(
                    f"{prefix} AutoUpdate success ✅ {dt:.1f}s, installed {n} package{'s' * (n > 1)}: {pkgs}\n"
                    f"{prefix} ⚠️ {colorstr('bold', 'Restart runtime or rerun command for updates to take effect')}\n"
                )
            except Exception as e:
                LOGGER.warning(f"{prefix}{e}")
                return False
        else:
            return False

    return True



ultralytics.utils.checks.check_torchvision()

Uyumlu olduklarından emin olmak için PyTorch ve Torchvision'ın yüklü sürümlerini kontrol eder.

Bu işlev PyTorch ve Torchvision'ın yüklü sürümlerini kontrol eder ve uyumsuz olmaları durumunda uyarı verir. temel alınarak sağlanan uyumluluk tablosuna: https://github.com/pytorch/vision#installation.

Uyumluluk tablosu, anahtarların PyTorch sürümleri ve değerlerin uyumlu sürümlerin listeleri olduğu bir sözlüktür. Torchvision versiyonları.

Kaynak kodu ultralytics/utils/checks.py
def check_torchvision():
    """
    Checks the installed versions of PyTorch and Torchvision to ensure they're compatible.

    This function checks the installed versions of PyTorch and Torchvision, and warns if they're incompatible according
    to the provided compatibility table based on:
    https://github.com/pytorch/vision#installation.

    The compatibility table is a dictionary where the keys are PyTorch versions and the values are lists of compatible
    Torchvision versions.
    """

    # Compatibility table
    compatibility_table = {
        "2.3": ["0.18"],
        "2.2": ["0.17"],
        "2.1": ["0.16"],
        "2.0": ["0.15"],
        "1.13": ["0.14"],
        "1.12": ["0.13"],
    }

    # Extract only the major and minor versions
    v_torch = ".".join(torch.__version__.split("+")[0].split(".")[:2])
    v_torchvision = ".".join(TORCHVISION_VERSION.split("+")[0].split(".")[:2])

    if v_torch in compatibility_table:
        compatible_versions = compatibility_table[v_torch]
        if all(v_torchvision != v for v in compatible_versions):
            print(
                f"WARNING ⚠️ torchvision=={v_torchvision} is incompatible with torch=={v_torch}.\n"
                f"Run 'pip install torchvision=={compatible_versions[0]}' to fix torchvision or "
                "'pip install -U torch torchvision' to update both.\n"
                "For a full compatibility table see https://github.com/pytorch/vision#installation"
            )



ultralytics.utils.checks.check_suffix(file='yolov8n.pt', suffix='.pt', msg='')

Kabul edilebilir son ek için dosya(lar)ı kontrol edin.

Kaynak kodu ultralytics/utils/checks.py
def check_suffix(file="yolov8n.pt", suffix=".pt", msg=""):
    """Check file(s) for acceptable suffix."""
    if file and suffix:
        if isinstance(suffix, str):
            suffix = (suffix,)
        for f in file if isinstance(file, (list, tuple)) else [file]:
            s = Path(f).suffix.lower().strip()  # file suffix
            if len(s):
                assert s in suffix, f"{msg}{f} acceptable suffix is {suffix}, not {s}"



ultralytics.utils.checks.check_yolov5u_filename(file, verbose=True)

Eski YOLOv5 dosya adlarını güncellenmiş YOLOv5u dosya adlarıyla değiştirin.

Kaynak kodu ultralytics/utils/checks.py
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:
        if "u.yaml" in file:
            file = file.replace("u.yaml", ".yaml")  # i.e. yolov5nu.yaml -> yolov5n.yaml
        elif ".pt" in file and "u" not in file:
            original_file = file
            file = re.sub(r"(.*yolov5([nsmlx]))\.pt", "\\1u.pt", file)  # i.e. yolov5n.pt -> yolov5nu.pt
            file = re.sub(r"(.*yolov5([nsmlx])6)\.pt", "\\1u.pt", file)  # i.e. yolov5n6.pt -> yolov5n6u.pt
            file = re.sub(r"(.*yolov3(|-tiny|-spp))\.pt", "\\1u.pt", file)  # i.e. yolov3-spp.pt -> yolov3-sppu.pt
            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"
                )
    return file



ultralytics.utils.checks.check_model_file_from_stem(model='yolov8n')

Geçerli bir model gövdesinden bir model dosya adı döndürür.

Kaynak kodu ultralytics/utils/checks.py
def check_model_file_from_stem(model="yolov8n"):
    """Return a model filename from a valid model stem."""
    if model and not Path(model).suffix and Path(model).stem in downloads.GITHUB_ASSETS_STEMS:
        return Path(model).with_suffix(".pt")  # add suffix, i.e. yolov8n -> yolov8n.pt
    else:
        return model



ultralytics.utils.checks.check_file(file, suffix='', download=True, hard=True)

Dosyayı arayın/indirin (gerekirse) ve yolu döndürün.

Kaynak kodu ultralytics/utils/checks.py
def check_file(file, suffix="", download=True, hard=True):
    """Search/download file (if necessary) and return path."""
    check_suffix(file, suffix)  # optional
    file = str(file).strip()  # convert to string and strip spaces
    file = check_yolov5u_filename(file)  # yolov5n -> yolov5nu
    if (
        not file
        or ("://" not in file and Path(file).exists())  # '://' check required in Windows Python<3.10
        or file.lower().startswith("grpc://")
    ):  # file exists or gRPC Triton images
        return file
    elif download and file.lower().startswith(("https://", "http://", "rtsp://", "rtmp://", "tcp://")):  # download
        url = file  # warning: Pathlib turns :// -> :/
        file = url2file(file)  # '%2F' to '/', split https://url.com/file.txt?auth
        if Path(file).exists():
            LOGGER.info(f"Found {clean_url(url)} locally at {file}")  # file already exists
        else:
            downloads.safe_download(url=url, file=file, unzip=False)
        return file
    else:  # search
        files = glob.glob(str(ROOT / "**" / file), recursive=True) or glob.glob(str(ROOT.parent / file))  # find file
        if not files and hard:
            raise FileNotFoundError(f"'{file}' does not exist")
        elif len(files) > 1 and hard:
            raise FileNotFoundError(f"Multiple files match '{file}', specify exact path: {files}")
        return files[0] if len(files) else []  # return file



ultralytics.utils.checks.check_yaml(file, suffix=('.yaml', '.yml'), hard=True)

YAML dosyasını arayın/indirin (gerekirse) ve son eki kontrol ederek yolu döndürün.

Kaynak kodu ultralytics/utils/checks.py
def check_yaml(file, suffix=(".yaml", ".yml"), hard=True):
    """Search/download YAML file (if necessary) and return path, checking suffix."""
    return check_file(file, suffix, hard=hard)



ultralytics.utils.checks.check_is_path_safe(basedir, path)

Yol geçişini önlemek için çözümlenen yolun amaçlanan dizinin altında olup olmadığını kontrol edin.

Parametreler:

İsim Tip Açıklama Varsayılan
basedir Path | str

Hedeflenen dizin.

gerekli
path Path | str

Kontrol edilecek yol.

gerekli

İade:

Tip Açıklama
bool

Yol güvenli ise True, aksi takdirde False.

Kaynak kodu ultralytics/utils/checks.py
def check_is_path_safe(basedir, path):
    """
    Check if the resolved path is under the intended directory to prevent path traversal.

    Args:
        basedir (Path | str): The intended directory.
        path (Path | str): The path to check.

    Returns:
        (bool): True if the path is safe, False otherwise.
    """
    base_dir_resolved = Path(basedir).resolve()
    path_resolved = Path(path).resolve()

    return path_resolved.exists() and path_resolved.parts[: len(base_dir_resolved.parts)] == base_dir_resolved.parts



ultralytics.utils.checks.check_imshow(warn=False)

Ortamın görüntü ekranlarını destekleyip desteklemediğini kontrol edin.

Kaynak kodu ultralytics/utils/checks.py
def check_imshow(warn=False):
    """Check if environment supports image displays."""
    try:
        if LINUX:
            assert "DISPLAY" in os.environ and not IS_DOCKER and not IS_COLAB and not IS_KAGGLE
        cv2.imshow("test", np.zeros((8, 8, 3), dtype=np.uint8))  # show a small 8-pixel image
        cv2.waitKey(1)
        cv2.destroyAllWindows()
        cv2.waitKey(1)
        return True
    except Exception as e:
        if warn:
            LOGGER.warning(f"WARNING ⚠️ Environment does not support cv2.imshow() or PIL Image.show()\n{e}")
        return False



ultralytics.utils.checks.check_yolo(verbose=True, device='')

İnsan tarafından okunabilir bir YOLO yazılım ve donanım özeti döndürür.

Kaynak kodu ultralytics/utils/checks.py
def check_yolo(verbose=True, device=""):
    """Return a human-readable YOLO software and hardware summary."""
    import psutil

    from ultralytics.utils.torch_utils import select_device

    if IS_JUPYTER:
        if check_requirements("wandb", install=False):
            os.system("pip uninstall -y wandb")  # uninstall wandb: unwanted account creation prompt with infinite hang
        if IS_COLAB:
            shutil.rmtree("sample_data", ignore_errors=True)  # remove colab /sample_data directory

    if verbose:
        # System info
        gib = 1 << 30  # bytes per GiB
        ram = psutil.virtual_memory().total
        total, used, free = shutil.disk_usage("/")
        s = f"({os.cpu_count()} CPUs, {ram / gib:.1f} GB RAM, {(total - free) / gib:.1f}/{total / gib:.1f} GB disk)"
        with contextlib.suppress(Exception):  # clear display if ipython is installed
            from IPython import display

            display.clear_output()
    else:
        s = ""

    select_device(device=device, newline=False)
    LOGGER.info(f"Setup complete ✅ {s}")



ultralytics.utils.checks.collect_system_info()

İşletim sistemi, Python, RAM, CPU ve CUDA dahil olmak üzere ilgili sistem bilgilerini toplayın ve yazdırın.

Kaynak kodu ultralytics/utils/checks.py
def collect_system_info():
    """Collect and print relevant system information including OS, Python, RAM, CPU, and CUDA."""

    import psutil

    from ultralytics.utils import ENVIRONMENT, IS_GIT_DIR
    from ultralytics.utils.torch_utils import get_cpu_info

    ram_info = psutil.virtual_memory().total / (1024**3)  # Convert bytes to GB
    check_yolo()
    LOGGER.info(
        f"\n{'OS':<20}{platform.platform()}\n"
        f"{'Environment':<20}{ENVIRONMENT}\n"
        f"{'Python':<20}{PYTHON_VERSION}\n"
        f"{'Install':<20}{'git' if IS_GIT_DIR else 'pip' if IS_PIP_PACKAGE else 'other'}\n"
        f"{'RAM':<20}{ram_info:.2f} GB\n"
        f"{'CPU':<20}{get_cpu_info()}\n"
        f"{'CUDA':<20}{torch.version.cuda if torch and torch.cuda.is_available() else None}\n"
    )

    for r in parse_requirements(package="ultralytics"):
        try:
            current = metadata.version(r.name)
            is_met = "✅ " if check_version(current, str(r.specifier), hard=True) else "❌ "
        except metadata.PackageNotFoundError:
            current = "(not installed)"
            is_met = "❌ "
        LOGGER.info(f"{r.name:<20}{is_met}{current}{r.specifier}")

    if is_github_action_running():
        LOGGER.info(
            f"\nRUNNER_OS: {os.getenv('RUNNER_OS')}\n"
            f"GITHUB_EVENT_NAME: {os.getenv('GITHUB_EVENT_NAME')}\n"
            f"GITHUB_WORKFLOW: {os.getenv('GITHUB_WORKFLOW')}\n"
            f"GITHUB_ACTOR: {os.getenv('GITHUB_ACTOR')}\n"
            f"GITHUB_REPOSITORY: {os.getenv('GITHUB_REPOSITORY')}\n"
            f"GITHUB_REPOSITORY_OWNER: {os.getenv('GITHUB_REPOSITORY_OWNER')}\n"
        )



ultralytics.utils.checks.check_amp(model)

Bu fonksiyon bir YOLOv8 modelinin PyTorch Otomatik Karışık Hassasiyet (AMP) işlevselliğini kontrol eder. Eğer kontroller başarısız olursa, sistemde AMP ile NaN kayıplarına veya sıfır-mAP sonuçlarına neden olabilecek anormallikler olduğu anlamına gelir, bu nedenle AMP eğitim sırasında devre dışı bırakılabilir.

Parametreler:

İsim Tip Açıklama Varsayılan
model Module

Bir YOLOv8 model örneği.

gerekli
Örnek
from ultralytics import YOLO
from ultralytics.utils.checks import check_amp

model = YOLO('yolov8n.pt').model.cuda()
check_amp(model)

İade:

Tip Açıklama
bool

AMP işlevi YOLOv8 modeliyle doğru çalışıyorsa True, aksi takdirde False döndürür.

Kaynak kodu ultralytics/utils/checks.py
def check_amp(model):
    """
    This function checks the PyTorch Automatic Mixed Precision (AMP) functionality of a YOLOv8 model. If the checks
    fail, it means there are anomalies with AMP on the system that may cause NaN losses or zero-mAP results, so AMP will
    be disabled during training.

    Args:
        model (nn.Module): A YOLOv8 model instance.

    Example:
        ```python
        from ultralytics import YOLO
        from ultralytics.utils.checks import check_amp

        model = YOLO('yolov8n.pt').model.cuda()
        check_amp(model)
        ```

    Returns:
        (bool): Returns True if the AMP functionality works correctly with YOLOv8 model, else False.
    """
    device = next(model.parameters()).device  # get model device
    if device.type in {"cpu", "mps"}:
        return False  # AMP only used on CUDA devices

    def amp_allclose(m, im):
        """All close FP32 vs AMP results."""
        a = m(im, device=device, verbose=False)[0].boxes.data  # FP32 inference
        with torch.cuda.amp.autocast(True):
            b = m(im, device=device, verbose=False)[0].boxes.data  # AMP inference
        del m
        return a.shape == b.shape and torch.allclose(a, b.float(), atol=0.5)  # close to 0.5 absolute tolerance

    im = ASSETS / "bus.jpg"  # image to check
    prefix = colorstr("AMP: ")
    LOGGER.info(f"{prefix}running Automatic Mixed Precision (AMP) checks with YOLOv8n...")
    warning_msg = "Setting 'amp=True'. If you experience zero-mAP or NaN losses you can disable AMP with amp=False."
    try:
        from ultralytics import YOLO

        assert amp_allclose(YOLO("yolov8n.pt"), im)
        LOGGER.info(f"{prefix}checks passed ✅")
    except ConnectionError:
        LOGGER.warning(f"{prefix}checks skipped ⚠️, offline and unable to download YOLOv8n. {warning_msg}")
    except (AttributeError, ModuleNotFoundError):
        LOGGER.warning(
            f"{prefix}checks skipped ⚠️. "
            f"Unable to load YOLOv8n due to possible Ultralytics package modifications. {warning_msg}"
        )
    except AssertionError:
        LOGGER.warning(
            f"{prefix}checks failed ❌. Anomalies were detected with AMP on your system that may lead to "
            f"NaN losses or zero-mAP results, so AMP will be disabled during training."
        )
        return False
    return True



ultralytics.utils.checks.git_describe(path=ROOT)

İnsan tarafından okunabilir git açıklaması döndür, örneğin v5.0-5-g3e25f1e https://git-scm.com/docs/git-describe.

Kaynak kodu ultralytics/utils/checks.py
def git_describe(path=ROOT):  # path must be a directory
    """Return human-readable git description, i.e. v5.0-5-g3e25f1e https://git-scm.com/docs/git-describe."""
    with contextlib.suppress(Exception):
        return subprocess.check_output(f"git -C {path} describe --tags --long --always", shell=True).decode()[:-1]
    return ""



ultralytics.utils.checks.print_args(args=None, show_file=True, show_func=False)

Fonksiyon argümanlarını yazdırın (isteğe bağlı args dict).

Kaynak kodu ultralytics/utils/checks.py
def print_args(args: Optional[dict] = None, show_file=True, show_func=False):
    """Print function arguments (optional args dict)."""

    def strip_auth(v):
        """Clean longer Ultralytics HUB URLs by stripping potential authentication information."""
        return clean_url(v) if (isinstance(v, str) and v.startswith("http") and len(v) > 100) else v

    x = inspect.currentframe().f_back  # previous frame
    file, _, func, _, _ = inspect.getframeinfo(x)
    if args is None:  # get args automatically
        args, _, _, frm = inspect.getargvalues(x)
        args = {k: v for k, v in frm.items() if k in args}
    try:
        file = Path(file).resolve().relative_to(ROOT).with_suffix("")
    except ValueError:
        file = Path(file).stem
    s = (f"{file}: " if show_file else "") + (f"{func}: " if show_func else "")
    LOGGER.info(colorstr(s) + ", ".join(f"{k}={strip_auth(v)}" for k, v in args.items()))



ultralytics.utils.checks.cuda_device_count()

Ortamda bulunan NVIDIA GPU'larının sayısını alın.

İade:

Tip Açıklama
int

Kullanılabilir NVIDIA GPU'larının sayısı.

Kaynak kodu ultralytics/utils/checks.py
def cuda_device_count() -> int:
    """
    Get the number of NVIDIA GPUs available in the environment.

    Returns:
        (int): The number of NVIDIA GPUs available.
    """
    try:
        # Run the nvidia-smi command and capture its output
        output = subprocess.check_output(
            ["nvidia-smi", "--query-gpu=count", "--format=csv,noheader,nounits"], encoding="utf-8"
        )

        # Take the first line and strip any leading/trailing white space
        first_line = output.strip().split("\n")[0]

        return int(first_line)
    except (subprocess.CalledProcessError, FileNotFoundError, ValueError):
        # If the command fails, nvidia-smi is not found, or output is not an integer, assume no GPUs are available
        return 0



ultralytics.utils.checks.cuda_is_available()

Ortamda CUDA'nın kullanılabilir olup olmadığını kontrol edin.

İade:

Tip Açıklama
bool

Bir veya daha fazla NVIDIA GPU mevcutsa True, aksi takdirde False.

Kaynak kodu ultralytics/utils/checks.py
def cuda_is_available() -> bool:
    """
    Check if CUDA is available in the environment.

    Returns:
        (bool): True if one or more NVIDIA GPUs are available, False otherwise.
    """
    return cuda_device_count() > 0





Oluşturuldu 2023-11-12, Güncellendi 2024-05-08
Yazarlar: Burhan-Q (1), glenn-jocher (3), Laughing-q (1)