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name : pretty.py
 import builtins
import collections
import dataclasses
import inspect
import os
import sys
from array import array
from collections import Counter, UserDict, UserList, defaultdict, deque
from dataclasses import dataclass, fields, is_dataclass
from inspect import isclass
from itertools import islice
from types import MappingProxyType
from typing import (
    TYPE_CHECKING,
    Any,
    Callable,
    DefaultDict,
    Dict,
    Iterable,
    List,
    Optional,
    Sequence,
    Set,
    Tuple,
    Union,
)

from pip._vendor.rich.repr import RichReprResult

try:
    import attr as _attr_module

    _has_attrs = hasattr(_attr_module, "ib")
except ImportError:  # pragma: no cover
    _has_attrs = False

from . import get_console
from ._loop import loop_last
from ._pick import pick_bool
from .abc import RichRenderable
from .cells import cell_len
from .highlighter import ReprHighlighter
from .jupyter import JupyterMixin, JupyterRenderable
from .measure import Measurement
from .text import Text

if TYPE_CHECKING:
    from .console import (
        Console,
        ConsoleOptions,
        HighlighterType,
        JustifyMethod,
        OverflowMethod,
        RenderResult,
    )


def _is_attr_object(obj: Any) -> bool:
    """Check if an object was created with attrs module."""
    return _has_attrs and _attr_module.has(type(obj))


def _get_attr_fields(obj: Any) -> Sequence["_attr_module.Attribute[Any]"]:
    """Get fields for an attrs object."""
    return _attr_module.fields(type(obj)) if _has_attrs else []


def _is_dataclass_repr(obj: object) -> bool:
    """Check if an instance of a dataclass contains the default repr.

    Args:
        obj (object): A dataclass instance.

    Returns:
        bool: True if the default repr is used, False if there is a custom repr.
    """
    # Digging in to a lot of internals here
    # Catching all exceptions in case something is missing on a non CPython implementation
    try:
        return obj.__repr__.__code__.co_filename == dataclasses.__file__
    except Exception:  # pragma: no coverage
        return False


_dummy_namedtuple = collections.namedtuple("_dummy_namedtuple", [])


def _has_default_namedtuple_repr(obj: object) -> bool:
    """Check if an instance of namedtuple contains the default repr

    Args:
        obj (object): A namedtuple

    Returns:
        bool: True if the default repr is used, False if there's a custom repr.
    """
    obj_file = None
    try:
        obj_file = inspect.getfile(obj.__repr__)
    except (OSError, TypeError):
        # OSError handles case where object is defined in __main__ scope, e.g. REPL - no filename available.
        # TypeError trapped defensively, in case of object without filename slips through.
        pass
    default_repr_file = inspect.getfile(_dummy_namedtuple.__repr__)
    return obj_file == default_repr_file


def _ipy_display_hook(
    value: Any,
    console: Optional["Console"] = None,
    overflow: "OverflowMethod" = "ignore",
    crop: bool = False,
    indent_guides: bool = False,
    max_length: Optional[int] = None,
    max_string: Optional[int] = None,
    max_depth: Optional[int] = None,
    expand_all: bool = False,
) -> Union[str, None]:
    # needed here to prevent circular import:
    from .console import ConsoleRenderable

    # always skip rich generated jupyter renderables or None values
    if _safe_isinstance(value, JupyterRenderable) or value is None:
        return None

    console = console or get_console()

    with console.capture() as capture:
        # certain renderables should start on a new line
        if _safe_isinstance(value, ConsoleRenderable):
            console.line()
        console.print(
            value
            if _safe_isinstance(value, RichRenderable)
            else Pretty(
                value,
                overflow=overflow,
                indent_guides=indent_guides,
                max_length=max_length,
                max_string=max_string,
                max_depth=max_depth,
                expand_all=expand_all,
                margin=12,
            ),
            crop=crop,
            new_line_start=True,
            end="",
        )
    # strip trailing newline, not usually part of a text repr
    # I'm not sure if this should be prevented at a lower level
    return capture.get().rstrip("\n")


def _safe_isinstance(
    obj: object, class_or_tuple: Union[type, Tuple[type, ...]]
) -> bool:
    """isinstance can fail in rare cases, for example types with no __class__"""
    try:
        return isinstance(obj, class_or_tuple)
    except Exception:
        return False


def install(
    console: Optional["Console"] = None,
    overflow: "OverflowMethod" = "ignore",
    crop: bool = False,
    indent_guides: bool = False,
    max_length: Optional[int] = None,
    max_string: Optional[int] = None,
    max_depth: Optional[int] = None,
    expand_all: bool = False,
) -> None:
    """Install automatic pretty printing in the Python REPL.

    Args:
        console (Console, optional): Console instance or ``None`` to use global console. Defaults to None.
        overflow (Optional[OverflowMethod], optional): Overflow method. Defaults to "ignore".
        crop (Optional[bool], optional): Enable cropping of long lines. Defaults to False.
        indent_guides (bool, optional): Enable indentation guides. Defaults to False.
        max_length (int, optional): Maximum length of containers before abbreviating, or None for no abbreviation.
            Defaults to None.
        max_string (int, optional): Maximum length of string before truncating, or None to disable. Defaults to None.
        max_depth (int, optional): Maximum depth of nested data structures, or None for no maximum. Defaults to None.
        expand_all (bool, optional): Expand all containers. Defaults to False.
        max_frames (int): Maximum number of frames to show in a traceback, 0 for no maximum. Defaults to 100.
    """
    from pip._vendor.rich import get_console

    console = console or get_console()
    assert console is not None

    def display_hook(value: Any) -> None:
        """Replacement sys.displayhook which prettifies objects with Rich."""
        if value is not None:
            assert console is not None
            builtins._ = None  # type: ignore[attr-defined]
            console.print(
                value
                if _safe_isinstance(value, RichRenderable)
                else Pretty(
                    value,
                    overflow=overflow,
                    indent_guides=indent_guides,
                    max_length=max_length,
                    max_string=max_string,
                    max_depth=max_depth,
                    expand_all=expand_all,
                ),
                crop=crop,
            )
            builtins._ = value  # type: ignore[attr-defined]

    try:
        ip = get_ipython()  # type: ignore[name-defined]
    except NameError:
        sys.displayhook = display_hook
    else:
        from IPython.core.formatters import BaseFormatter

        class RichFormatter(BaseFormatter):  # type: ignore[misc]
            pprint: bool = True

            def __call__(self, value: Any) -> Any:
                if self.pprint:
                    return _ipy_display_hook(
                        value,
                        console=get_console(),
                        overflow=overflow,
                        indent_guides=indent_guides,
                        max_length=max_length,
                        max_string=max_string,
                        max_depth=max_depth,
                        expand_all=expand_all,
                    )
                else:
                    return repr(value)

        # replace plain text formatter with rich formatter
        rich_formatter = RichFormatter()
        ip.display_formatter.formatters["text/plain"] = rich_formatter


class Pretty(JupyterMixin):
    """A rich renderable that pretty prints an object.

    Args:
        _object (Any): An object to pretty print.
        highlighter (HighlighterType, optional): Highlighter object to apply to result, or None for ReprHighlighter. Defaults to None.
        indent_size (int, optional): Number of spaces in indent. Defaults to 4.
        justify (JustifyMethod, optional): Justify method, or None for default. Defaults to None.
        overflow (OverflowMethod, optional): Overflow method, or None for default. Defaults to None.
        no_wrap (Optional[bool], optional): Disable word wrapping. Defaults to False.
        indent_guides (bool, optional): Enable indentation guides. Defaults to False.
        max_length (int, optional): Maximum length of containers before abbreviating, or None for no abbreviation.
            Defaults to None.
        max_string (int, optional): Maximum length of string before truncating, or None to disable. Defaults to None.
        max_depth (int, optional): Maximum depth of nested data structures, or None for no maximum. Defaults to None.
        expand_all (bool, optional): Expand all containers. Defaults to False.
        margin (int, optional): Subtrace a margin from width to force containers to expand earlier. Defaults to 0.
        insert_line (bool, optional): Insert a new line if the output has multiple new lines. Defaults to False.
    """

    def __init__(
        self,
        _object: Any,
        highlighter: Optional["HighlighterType"] = None,
        *,
        indent_size: int = 4,
        justify: Optional["JustifyMethod"] = None,
        overflow: Optional["OverflowMethod"] = None,
        no_wrap: Optional[bool] = False,
        indent_guides: bool = False,
        max_length: Optional[int] = None,
        max_string: Optional[int] = None,
        max_depth: Optional[int] = None,
        expand_all: bool = False,
        margin: int = 0,
        insert_line: bool = False,
    ) -> None:
        self._object = _object
        self.highlighter = highlighter or ReprHighlighter()
        self.indent_size = indent_size
        self.justify: Optional["JustifyMethod"] = justify
        self.overflow: Optional["OverflowMethod"] = overflow
        self.no_wrap = no_wrap
        self.indent_guides = indent_guides
        self.max_length = max_length
        self.max_string = max_string
        self.max_depth = max_depth
        self.expand_all = expand_all
        self.margin = margin
        self.insert_line = insert_line

    def __rich_console__(
        self, console: "Console", options: "ConsoleOptions"
    ) -> "RenderResult":
        pretty_str = pretty_repr(
            self._object,
            max_width=options.max_width - self.margin,
            indent_size=self.indent_size,
            max_length=self.max_length,
            max_string=self.max_string,
            max_depth=self.max_depth,
            expand_all=self.expand_all,
        )
        pretty_text = Text.from_ansi(
            pretty_str,
            justify=self.justify or options.justify,
            overflow=self.overflow or options.overflow,
            no_wrap=pick_bool(self.no_wrap, options.no_wrap),
            style="pretty",
        )
        pretty_text = (
            self.highlighter(pretty_text)
            if pretty_text
            else Text(
                f"{type(self._object)}.__repr__ returned empty string",
                style="dim italic",
            )
        )
        if self.indent_guides and not options.ascii_only:
            pretty_text = pretty_text.with_indent_guides(
                self.indent_size, style="repr.indent"
            )
        if self.insert_line and "\n" in pretty_text:
            yield ""
        yield pretty_text

    def __rich_measure__(
        self, console: "Console", options: "ConsoleOptions"
    ) -> "Measurement":
        pretty_str = pretty_repr(
            self._object,
            max_width=options.max_width,
            indent_size=self.indent_size,
            max_length=self.max_length,
            max_string=self.max_string,
            max_depth=self.max_depth,
            expand_all=self.expand_all,
        )
        text_width = (
            max(cell_len(line) for line in pretty_str.splitlines()) if pretty_str else 0
        )
        return Measurement(text_width, text_width)


def _get_braces_for_defaultdict(_object: DefaultDict[Any, Any]) -> Tuple[str, str, str]:
    return (
        f"defaultdict({_object.default_factory!r}, {{",
        "})",
        f"defaultdict({_object.default_factory!r}, {{}})",
    )


def _get_braces_for_array(_object: "array[Any]") -> Tuple[str, str, str]:
    return (f"array({_object.typecode!r}, [", "])", f"array({_object.typecode!r})")


_BRACES: Dict[type, Callable[[Any], Tuple[str, str, str]]] = {
    os._Environ: lambda _object: ("environ({", "})", "environ({})"),
    array: _get_braces_for_array,
    defaultdict: _get_braces_for_defaultdict,
    Counter: lambda _object: ("Counter({", "})", "Counter()"),
    deque: lambda _object: ("deque([", "])", "deque()"),
    dict: lambda _object: ("{", "}", "{}"),
    UserDict: lambda _object: ("{", "}", "{}"),
    frozenset: lambda _object: ("frozenset({", "})", "frozenset()"),
    list: lambda _object: ("[", "]", "[]"),
    UserList: lambda _object: ("[", "]", "[]"),
    set: lambda _object: ("{", "}", "set()"),
    tuple: lambda _object: ("(", ")", "()"),
    MappingProxyType: lambda _object: ("mappingproxy({", "})", "mappingproxy({})"),
}
_CONTAINERS = tuple(_BRACES.keys())
_MAPPING_CONTAINERS = (dict, os._Environ, MappingProxyType, UserDict)


def is_expandable(obj: Any) -> bool:
    """Check if an object may be expanded by pretty print."""
    return (
        _safe_isinstance(obj, _CONTAINERS)
        or (is_dataclass(obj))
        or (hasattr(obj, "__rich_repr__"))
        or _is_attr_object(obj)
    ) and not isclass(obj)


@dataclass
class Node:
    """A node in a repr tree. May be atomic or a container."""

    key_repr: str = ""
    value_repr: str = ""
    open_brace: str = ""
    close_brace: str = ""
    empty: str = ""
    last: bool = False
    is_tuple: bool = False
    is_namedtuple: bool = False
    children: Optional[List["Node"]] = None
    key_separator: str = ": "
    separator: str = ", "

    def iter_tokens(self) -> Iterable[str]:
        """Generate tokens for this node."""
        if self.key_repr:
            yield self.key_repr
            yield self.key_separator
        if self.value_repr:
            yield self.value_repr
        elif self.children is not None:
            if self.children:
                yield self.open_brace
                if self.is_tuple and not self.is_namedtuple and len(self.children) == 1:
                    yield from self.children[0].iter_tokens()
                    yield ","
                else:
                    for child in self.children:
                        yield from child.iter_tokens()
                        if not child.last:
                            yield self.separator
                yield self.close_brace
            else:
                yield self.empty

    def check_length(self, start_length: int, max_length: int) -> bool:
        """Check the length fits within a limit.

        Args:
            start_length (int): Starting length of the line (indent, prefix, suffix).
            max_length (int): Maximum length.

        Returns:
            bool: True if the node can be rendered within max length, otherwise False.
        """
        total_length = start_length
        for token in self.iter_tokens():
            total_length += cell_len(token)
            if total_length > max_length:
                return False
        return True

    def __str__(self) -> str:
        repr_text = "".join(self.iter_tokens())
        return repr_text

    def render(
        self, max_width: int = 80, indent_size: int = 4, expand_all: bool = False
    ) -> str:
        """Render the node to a pretty repr.

        Args:
            max_width (int, optional): Maximum width of the repr. Defaults to 80.
            indent_size (int, optional): Size of indents. Defaults to 4.
            expand_all (bool, optional): Expand all levels. Defaults to False.

        Returns:
            str: A repr string of the original object.
        """
        lines = [_Line(node=self, is_root=True)]
        line_no = 0
        while line_no < len(lines):
            line = lines[line_no]
            if line.expandable and not line.expanded:
                if expand_all or not line.check_length(max_width):
                    lines[line_no : line_no + 1] = line.expand(indent_size)
            line_no += 1

        repr_str = "\n".join(str(line) for line in lines)
        return repr_str


@dataclass
class _Line:
    """A line in repr output."""

    parent: Optional["_Line"] = None
    is_root: bool = False
    node: Optional[Node] = None
    text: str = ""
    suffix: str = ""
    whitespace: str = ""
    expanded: bool = False
    last: bool = False

    @property
    def expandable(self) -> bool:
        """Check if the line may be expanded."""
        return bool(self.node is not None and self.node.children)

    def check_length(self, max_length: int) -> bool:
        """Check this line fits within a given number of cells."""
        start_length = (
            len(self.whitespace) + cell_len(self.text) + cell_len(self.suffix)
        )
        assert self.node is not None
        return self.node.check_length(start_length, max_length)

    def expand(self, indent_size: int) -> Iterable["_Line"]:
        """Expand this line by adding children on their own line."""
        node = self.node
        assert node is not None
        whitespace = self.whitespace
        assert node.children
        if node.key_repr:
            new_line = yield _Line(
                text=f"{node.key_repr}{node.key_separator}{node.open_brace}",
                whitespace=whitespace,
            )
        else:
            new_line = yield _Line(text=node.open_brace, whitespace=whitespace)
        child_whitespace = self.whitespace + " " * indent_size
        tuple_of_one = node.is_tuple and len(node.children) == 1
        for last, child in loop_last(node.children):
            separator = "," if tuple_of_one else node.separator
            line = _Line(
                parent=new_line,
                node=child,
                whitespace=child_whitespace,
                suffix=separator,
                last=last and not tuple_of_one,
            )
            yield line

        yield _Line(
            text=node.close_brace,
            whitespace=whitespace,
            suffix=self.suffix,
            last=self.last,
        )

    def __str__(self) -> str:
        if self.last:
            return f"{self.whitespace}{self.text}{self.node or ''}"
        else:
            return (
                f"{self.whitespace}{self.text}{self.node or ''}{self.suffix.rstrip()}"
            )


def _is_namedtuple(obj: Any) -> bool:
    """Checks if an object is most likely a namedtuple. It is possible
    to craft an object that passes this check and isn't a namedtuple, but
    there is only a minuscule chance of this happening unintentionally.

    Args:
        obj (Any): The object to test

    Returns:
        bool: True if the object is a namedtuple. False otherwise.
    """
    try:
        fields = getattr(obj, "_fields", None)
    except Exception:
        # Being very defensive - if we cannot get the attr then its not a namedtuple
        return False
    return isinstance(obj, tuple) and isinstance(fields, tuple)


def traverse(
    _object: Any,
    max_length: Optional[int] = None,
    max_string: Optional[int] = None,
    max_depth: Optional[int] = None,
) -> Node:
    """Traverse object and generate a tree.

    Args:
        _object (Any): Object to be traversed.
        max_length (int, optional): Maximum length of containers before abbreviating, or None for no abbreviation.
            Defaults to None.
        max_string (int, optional): Maximum length of string before truncating, or None to disable truncating.
            Defaults to None.
        max_depth (int, optional): Maximum depth of data structures, or None for no maximum.
            Defaults to None.

    Returns:
        Node: The root of a tree structure which can be used to render a pretty repr.
    """

    def to_repr(obj: Any) -> str:
        """Get repr string for an object, but catch errors."""
        if (
            max_string is not None
            and _safe_isinstance(obj, (bytes, str))
            and len(obj) > max_string
        ):
            truncated = len(obj) - max_string
            obj_repr = f"{obj[:max_string]!r}+{truncated}"
        else:
            try:
                obj_repr = repr(obj)
            except Exception as error:
                obj_repr = f"<repr-error {str(error)!r}>"
        return obj_repr

    visited_ids: Set[int] = set()
    push_visited = visited_ids.add
    pop_visited = visited_ids.remove

    def _traverse(obj: Any, root: bool = False, depth: int = 0) -> Node:
        """Walk the object depth first."""

        obj_id = id(obj)
        if obj_id in visited_ids:
            # Recursion detected
            return Node(value_repr="...")

        obj_type = type(obj)
        children: List[Node]
        reached_max_depth = max_depth is not None and depth >= max_depth

        def iter_rich_args(rich_args: Any) -> Iterable[Union[Any, Tuple[str, Any]]]:
            for arg in rich_args:
                if _safe_isinstance(arg, tuple):
                    if len(arg) == 3:
                        key, child, default = arg
                        if default == child:
                            continue
                        yield key, child
                    elif len(arg) == 2:
                        key, child = arg
                        yield key, child
                    elif len(arg) == 1:
                        yield arg[0]
                else:
                    yield arg

        try:
            fake_attributes = hasattr(
                obj, "awehoi234_wdfjwljet234_234wdfoijsdfmmnxpi492"
            )
        except Exception:
            fake_attributes = False

        rich_repr_result: Optional[RichReprResult] = None
        if not fake_attributes:
            try:
                if hasattr(obj, "__rich_repr__") and not isclass(obj):
                    rich_repr_result = obj.__rich_repr__()
            except Exception:
                pass

        if rich_repr_result is not None:
            push_visited(obj_id)
            angular = getattr(obj.__rich_repr__, "angular", False)
            args = list(iter_rich_args(rich_repr_result))
            class_name = obj.__class__.__name__

            if args:
                children = []
                append = children.append

                if reached_max_depth:
                    if angular:
                        node = Node(value_repr=f"<{class_name}...>")
                    else:
                        node = Node(value_repr=f"{class_name}(...)")
                else:
                    if angular:
                        node = Node(
                            open_brace=f"<{class_name} ",
                            close_brace=">",
                            children=children,
                            last=root,
                            separator=" ",
                        )
                    else:
                        node = Node(
                            open_brace=f"{class_name}(",
                            close_brace=")",
                            children=children,
                            last=root,
                        )
                    for last, arg in loop_last(args):
                        if _safe_isinstance(arg, tuple):
                            key, child = arg
                            child_node = _traverse(child, depth=depth + 1)
                            child_node.last = last
                            child_node.key_repr = key
                            child_node.key_separator = "="
                            append(child_node)
                        else:
                            child_node = _traverse(arg, depth=depth + 1)
                            child_node.last = last
                            append(child_node)
            else:
                node = Node(
                    value_repr=f"<{class_name}>" if angular else f"{class_name}()",
                    children=[],
                    last=root,
                )
            pop_visited(obj_id)
        elif _is_attr_object(obj) and not fake_attributes:
            push_visited(obj_id)
            children = []
            append = children.append

            attr_fields = _get_attr_fields(obj)
            if attr_fields:
                if reached_max_depth:
                    node = Node(value_repr=f"{obj.__class__.__name__}(...)")
                else:
                    node = Node(
                        open_brace=f"{obj.__class__.__name__}(",
                        close_brace=")",
                        children=children,
                        last=root,
                    )

                    def iter_attrs() -> (
                        Iterable[Tuple[str, Any, Optional[Callable[[Any], str]]]]
                    ):
                        """Iterate over attr fields and values."""
                        for attr in attr_fields:
                            if attr.repr:
                                try:
                                    value = getattr(obj, attr.name)
                                except Exception as error:
                                    # Can happen, albeit rarely
                                    yield (attr.name, error, None)
                                else:
                                    yield (
                                        attr.name,
                                        value,
                                        attr.repr if callable(attr.repr) else None,
                                    )

                    for last, (name, value, repr_callable) in loop_last(iter_attrs()):
                        if repr_callable:
                            child_node = Node(value_repr=str(repr_callable(value)))
                        else:
                            child_node = _traverse(value, depth=depth + 1)
                        child_node.last = last
                        child_node.key_repr = name
                        child_node.key_separator = "="
                        append(child_node)
            else:
                node = Node(
                    value_repr=f"{obj.__class__.__name__}()", children=[], last=root
                )
            pop_visited(obj_id)
        elif (
            is_dataclass(obj)
            and not _safe_isinstance(obj, type)
            and not fake_attributes
            and _is_dataclass_repr(obj)
        ):
            push_visited(obj_id)
            children = []
            append = children.append
            if reached_max_depth:
                node = Node(value_repr=f"{obj.__class__.__name__}(...)")
            else:
                node = Node(
                    open_brace=f"{obj.__class__.__name__}(",
                    close_brace=")",
                    children=children,
                    last=root,
                    empty=f"{obj.__class__.__name__}()",
                )

                for last, field in loop_last(
                    field for field in fields(obj) if field.repr
                ):
                    child_node = _traverse(getattr(obj, field.name), depth=depth + 1)
                    child_node.key_repr = field.name
                    child_node.last = last
                    child_node.key_separator = "="
                    append(child_node)

            pop_visited(obj_id)
        elif _is_namedtuple(obj) and _has_default_namedtuple_repr(obj):
            push_visited(obj_id)
            class_name = obj.__class__.__name__
            if reached_max_depth:
                # If we've reached the max depth, we still show the class name, but not its contents
                node = Node(
                    value_repr=f"{class_name}(...)",
                )
            else:
                children = []
                append = children.append
                node = Node(
                    open_brace=f"{class_name}(",
                    close_brace=")",
                    children=children,
                    empty=f"{class_name}()",
                )
                for last, (key, value) in loop_last(obj._asdict().items()):
                    child_node = _traverse(value, depth=depth + 1)
                    child_node.key_repr = key
                    child_node.last = last
                    child_node.key_separator = "="
                    append(child_node)
            pop_visited(obj_id)
        elif _safe_isinstance(obj, _CONTAINERS):
            for container_type in _CONTAINERS:
                if _safe_isinstance(obj, container_type):
                    obj_type = container_type
                    break

            push_visited(obj_id)

            open_brace, close_brace, empty = _BRACES[obj_type](obj)

            if reached_max_depth:
                node = Node(value_repr=f"{open_brace}...{close_brace}")
            elif obj_type.__repr__ != type(obj).__repr__:
                node = Node(value_repr=to_repr(obj), last=root)
            elif obj:
                children = []
                node = Node(
                    open_brace=open_brace,
                    close_brace=close_brace,
                    children=children,
                    last=root,
                )
                append = children.append
                num_items = len(obj)
                last_item_index = num_items - 1

                if _safe_isinstance(obj, _MAPPING_CONTAINERS):
                    iter_items = iter(obj.items())
                    if max_length is not None:
                        iter_items = islice(iter_items, max_length)
                    for index, (key, child) in enumerate(iter_items):
                        child_node = _traverse(child, depth=depth + 1)
                        child_node.key_repr = to_repr(key)
                        child_node.last = index == last_item_index
                        append(child_node)
                else:
                    iter_values = iter(obj)
                    if max_length is not None:
                        iter_values = islice(iter_values, max_length)
                    for index, child in enumerate(iter_values):
                        child_node = _traverse(child, depth=depth + 1)
                        child_node.last = index == last_item_index
                        append(child_node)
                if max_length is not None and num_items > max_length:
                    append(Node(value_repr=f"... +{num_items - max_length}", last=True))
            else:
                node = Node(empty=empty, children=[], last=root)

            pop_visited(obj_id)
        else:
            node = Node(value_repr=to_repr(obj), last=root)
        node.is_tuple = _safe_isinstance(obj, tuple)
        node.is_namedtuple = _is_namedtuple(obj)
        return node

    node = _traverse(_object, root=True)
    return node


def pretty_repr(
    _object: Any,
    *,
    max_width: int = 80,
    indent_size: int = 4,
    max_length: Optional[int] = None,
    max_string: Optional[int] = None,
    max_depth: Optional[int] = None,
    expand_all: bool = False,
) -> str:
    """Prettify repr string by expanding on to new lines to fit within a given width.

    Args:
        _object (Any): Object to repr.
        max_width (int, optional): Desired maximum width of repr string. Defaults to 80.
        indent_size (int, optional): Number of spaces to indent. Defaults to 4.
        max_length (int, optional): Maximum length of containers before abbreviating, or None for no abbreviation.
            Defaults to None.
        max_string (int, optional): Maximum length of string before truncating, or None to disable truncating.
            Defaults to None.
        max_depth (int, optional): Maximum depth of nested data structure, or None for no depth.
            Defaults to None.
        expand_all (bool, optional): Expand all containers regardless of available width. Defaults to False.

    Returns:
        str: A possibly multi-line representation of the object.
    """

    if _safe_isinstance(_object, Node):
        node = _object
    else:
        node = traverse(
            _object, max_length=max_length, max_string=max_string, max_depth=max_depth
        )
    repr_str: str = node.render(
        max_width=max_width, indent_size=indent_size, expand_all=expand_all
    )
    return repr_str


def pprint(
    _object: Any,
    *,
    console: Optional["Console"] = None,
    indent_guides: bool = True,
    max_length: Optional[int] = None,
    max_string: Optional[int] = None,
    max_depth: Optional[int] = None,
    expand_all: bool = False,
) -> None:
    """A convenience function for pretty printing.

    Args:
        _object (Any): Object to pretty print.
        console (Console, optional): Console instance, or None to use default. Defaults to None.
        max_length (int, optional): Maximum length of containers before abbreviating, or None for no abbreviation.
            Defaults to None.
        max_string (int, optional): Maximum length of strings before truncating, or None to disable. Defaults to None.
        max_depth (int, optional): Maximum depth for nested data structures, or None for unlimited depth. Defaults to None.
        indent_guides (bool, optional): Enable indentation guides. Defaults to True.
        expand_all (bool, optional): Expand all containers. Defaults to False.
    """
    _console = get_console() if console is None else console
    _console.print(
        Pretty(
            _object,
            max_length=max_length,
            max_string=max_string,
            max_depth=max_depth,
            indent_guides=indent_guides,
            expand_all=expand_all,
            overflow="ignore",
        ),
        soft_wrap=True,
    )


if __name__ == "__main__":  # pragma: no cover

    class BrokenRepr:
        def __repr__(self) -> str:
            1 / 0
            return "this will fail"

    from typing import NamedTuple

    class StockKeepingUnit(NamedTuple):
        name: str
        description: str
        price: float
        category: str
        reviews: List[str]

    d = defaultdict(int)
    d["foo"] = 5
    data = {
        "foo": [
            1,
            "Hello World!",
            100.123,
            323.232,
            432324.0,
            {5, 6, 7, (1, 2, 3, 4), 8},
        ],
        "bar": frozenset({1, 2, 3}),
        "defaultdict": defaultdict(
            list, {"crumble": ["apple", "rhubarb", "butter", "sugar", "flour"]}
        ),
        "counter": Counter(
            [
                "apple",
                "orange",
                "pear",
                "kumquat",
                "kumquat",
                "durian" * 100,
            ]
        ),
        "atomic": (False, True, None),
        "namedtuple": StockKeepingUnit(
            "Sparkling British Spring Water",
            "Carbonated spring water",
            0.9,
            "water",
            ["its amazing!", "its terrible!"],
        ),
        "Broken": BrokenRepr(),
    }
    data["foo"].append(data)  # type: ignore[attr-defined]

    from pip._vendor.rich import print

    print(Pretty(data, indent_guides=True, max_string=20))

    class Thing:
        def __repr__(self) -> str:
            return "Hello\x1b[38;5;239m World!"

    print(Pretty(Thing()))
UnknownSec Shell
