Function ensure_extended_length_path

src/_pytest/pathlib.py:131–146

Get the extended-length version of a path (Windows). On Windows, by default, the maximum length of a path (MAX_PATH) is 260 characters, and operations on paths longer than that fail. But it is possible to overcome this by converting the path to "extended-length" form before performi

(path: Path)

def ensure_extended_length_path(path: Path) -> Path:
    class="st">"""Get the extended-length version of a path (Windows).

    On Windows, by default, the maximum length of a path (MAX_PATH) is 260
    characters, and operations on paths longer than that fail. But it is possible
    to overcome this by converting the path to class="st">"extended-length" form before
    performing the operation:
    https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-fileclass="cm">#maximum-path-length-limitation

    On Windows, this function returns the extended-length absolute version of path.
    On other platforms it returns path unchanged.
    class="st">"""
    if sys.platform.startswith(class="st">"win32"):
        path = path.resolve()
        path = Path(get_extended_length_path_str(str(path)))
    return path


def get_extended_length_path_str(path: str) -> str: