Class NodePath

xarray/core/treenode.py:24–43

Represents a path from one node to another within a tree.

class NodePath(PurePosixPath):
    """Represents a path from one node to another within a tree."""

    def __init__(self, *pathsegments):
        if sys.version_info >= (3, 12):
            super().__init__(*pathsegments)
        else:
            super().__new__(PurePosixPath, *pathsegments)
        if self.drive:
            raise ValueError("NodePaths cannot have drives")

        if self.root not in ["/", ""]:
            raise ValueError(
                'Root of NodePath can only be either "/" or "", with "" meaning the path is relative.'
            )
        # TODO should we also forbid suffixes to avoid node names with dots in them?

    def absolute(self) -> Self:
        """Convert into an absolute path."""
        return type(self)("/", *self.parts)


class TreeNode: