help@rskworld.in +91 93305 39277
RSK World
  • Home
  • Development
    • Web Development
    • Mobile Apps
    • Software
    • Games
    • Project
  • Technologies
    • Data Science
    • AI Development
    • Cloud Development
    • Blockchain
    • Cyber Security
    • Dev Tools
    • Testing Tools
  • Blog
  • About
  • Contact

Theme Settings

Color Scheme
Display Options
Font Size
100%
Back to Project
RSK World
travel-assistant-bot
/
.venv
/
Lib
/
site-packages
/
pip
/
_vendor
/
distlib
RSK World
travel-assistant-bot
Travel Assistant Bot - Python + Flask + OpenAI API + Travel Bot + Flight Search + Hotel Booking + Weather
distlib
  • __pycache__
  • __init__.py625 B
  • compat.py40.5 KB
  • database.py50 KB
  • index.py20.3 KB
  • locators.py49.8 KB
  • manifest.py13.8 KB
  • markers.py5 KB
  • metadata.py37.8 KB
  • resources.py10.6 KB
  • scripts.py18.2 KB
  • t32.exe95.5 KB
  • t64-arm.exe178.5 KB
  • t64.exe105.5 KB
  • util.py65.1 KB
  • version.py23.2 KB
  • w32.exe89.5 KB
  • w64-arm.exe164.5 KB
  • w64.exe99.5 KB
  • wheel.py42.9 KB
_ssl_constants.pyfilesize.pyansi.pycollector.pypretty.py
.venv/Lib/site-packages/pip/_vendor/truststore/_ssl_constants.py
Raw Download
Find: Go to:
import ssl
import sys
import typing

# Hold on to the original class so we can create it consistently
# even if we inject our own SSLContext into the ssl module.
_original_SSLContext = ssl.SSLContext
_original_super_SSLContext = super(_original_SSLContext, _original_SSLContext)

# CPython is known to be good, but non-CPython implementations
# may implement SSLContext differently so to be safe we don't
# subclass the SSLContext.

# This is returned by truststore.SSLContext.__class__()
_truststore_SSLContext_dunder_class: typing.Optional[type]

# This value is the superclass of truststore.SSLContext.
_truststore_SSLContext_super_class: type

if sys.implementation.name == "cpython":
    _truststore_SSLContext_super_class = _original_SSLContext
    _truststore_SSLContext_dunder_class = None
else:
    _truststore_SSLContext_super_class = object
    _truststore_SSLContext_dunder_class = _original_SSLContext


def _set_ssl_context_verify_mode(
    ssl_context: ssl.SSLContext, verify_mode: ssl.VerifyMode
) -> None:
    _original_super_SSLContext.verify_mode.__set__(ssl_context, verify_mode)  # type: ignore[attr-defined]
32 lines•1.1 KB
python
.venv/Lib/site-packages/pip/_vendor/rich/filesize.py
Raw Download
Find: Go to:
# coding: utf-8
"""Functions for reporting filesizes. Borrowed from https://github.com/PyFilesystem/pyfilesystem2

The functions declared in this module should cover the different
use cases needed to generate a string representation of a file size
using several different units. Since there are many standards regarding
file size units, three different functions have been implemented.

See Also:
    * `Wikipedia: Binary prefix <https://en.wikipedia.org/wiki/Binary_prefix>`_

"""

__all__ = ["decimal"]

from typing import Iterable, List, Optional, Tuple


def _to_str(
    size: int,
    suffixes: Iterable[str],
    base: int,
    *,
    precision: Optional[int] = 1,
    separator: Optional[str] = " ",
) -> str:
    if size == 1:
        return "1 byte"
    elif size < base:
        return "{:,} bytes".format(size)

    for i, suffix in enumerate(suffixes, 2):  # noqa: B007
        unit = base**i
        if size < unit:
            break
    return "{:,.{precision}f}{separator}{}".format(
        (base * size / unit),
        suffix,
        precision=precision,
        separator=separator,
    )


def pick_unit_and_suffix(size: int, suffixes: List[str], base: int) -> Tuple[int, str]:
    """Pick a suffix and base for the given size."""
    for i, suffix in enumerate(suffixes):
        unit = base**i
        if size < unit * base:
            break
    return unit, suffix


def decimal(
    size: int,
    *,
    precision: Optional[int] = 1,
    separator: Optional[str] = " ",
) -> str:
    """Convert a filesize in to a string (powers of 1000, SI prefixes).

    In this convention, ``1000 B = 1 kB``.

    This is typically the format used to advertise the storage
    capacity of USB flash drives and the like (*256 MB* meaning
    actually a storage capacity of more than *256 000 000 B*),
    or used by **Mac OS X** since v10.6 to report file sizes.

    Arguments:
        int (size): A file size.
        int (precision): The number of decimal places to include (default = 1).
        str (separator): The string to separate the value from the units (default = " ").

    Returns:
        `str`: A string containing a abbreviated file size and units.

    Example:
        >>> filesize.decimal(30000)
        '30.0 kB'
        >>> filesize.decimal(30000, precision=2, separator="")
        '30.00kB'

    """
    return _to_str(
        size,
        ("kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"),
        1000,
        precision=precision,
        separator=separator,
    )
90 lines•2.4 KB
python
.venv/Lib/site-packages/pip/_vendor/rich/ansi.py
Raw Download
Find: Go to:
import re
import sys
from contextlib import suppress
from typing import Iterable, NamedTuple, Optional

from .color import Color
from .style import Style
from .text import Text

re_ansi = re.compile(
    r"""
(?:\x1b\](.*?)\x1b\\)|
(?:\x1b([(@-Z\\-_]|\[[0-?]*[ -/]*[@-~]))
""",
    re.VERBOSE,
)


class _AnsiToken(NamedTuple):
    """Result of ansi tokenized string."""

    plain: str = ""
    sgr: Optional[str] = ""
    osc: Optional[str] = ""


def _ansi_tokenize(ansi_text: str) -> Iterable[_AnsiToken]:
    """Tokenize a string in to plain text and ANSI codes.

    Args:
        ansi_text (str): A String containing ANSI codes.

    Yields:
        AnsiToken: A named tuple of (plain, sgr, osc)
    """

    position = 0
    sgr: Optional[str]
    osc: Optional[str]
    for match in re_ansi.finditer(ansi_text):
        start, end = match.span(0)
        osc, sgr = match.groups()
        if start > position:
            yield _AnsiToken(ansi_text[position:start])
        if sgr:
            if sgr == "(":
                position = end + 1
                continue
            if sgr.endswith("m"):
                yield _AnsiToken("", sgr[1:-1], osc)
        else:
            yield _AnsiToken("", sgr, osc)
        position = end
    if position < len(ansi_text):
        yield _AnsiToken(ansi_text[position:])


SGR_STYLE_MAP = {
    1: "bold",
    2: "dim",
    3: "italic",
    4: "underline",
    5: "blink",
    6: "blink2",
    7: "reverse",
    8: "conceal",
    9: "strike",
    21: "underline2",
    22: "not dim not bold",
    23: "not italic",
    24: "not underline",
    25: "not blink",
    26: "not blink2",
    27: "not reverse",
    28: "not conceal",
    29: "not strike",
    30: "color(0)",
    31: "color(1)",
    32: "color(2)",
    33: "color(3)",
    34: "color(4)",
    35: "color(5)",
    36: "color(6)",
    37: "color(7)",
    39: "default",
    40: "on color(0)",
    41: "on color(1)",
    42: "on color(2)",
    43: "on color(3)",
    44: "on color(4)",
    45: "on color(5)",
    46: "on color(6)",
    47: "on color(7)",
    49: "on default",
    51: "frame",
    52: "encircle",
    53: "overline",
    54: "not frame not encircle",
    55: "not overline",
    90: "color(8)",
    91: "color(9)",
    92: "color(10)",
    93: "color(11)",
    94: "color(12)",
    95: "color(13)",
    96: "color(14)",
    97: "color(15)",
    100: "on color(8)",
    101: "on color(9)",
    102: "on color(10)",
    103: "on color(11)",
    104: "on color(12)",
    105: "on color(13)",
    106: "on color(14)",
    107: "on color(15)",
}


class AnsiDecoder:
    """Translate ANSI code in to styled Text."""

    def __init__(self) -> None:
        self.style = Style.null()

    def decode(self, terminal_text: str) -> Iterable[Text]:
        """Decode ANSI codes in an iterable of lines.

        Args:
            lines (Iterable[str]): An iterable of lines of terminal output.

        Yields:
            Text: Marked up Text.
        """
        for line in terminal_text.splitlines():
            yield self.decode_line(line)

    def decode_line(self, line: str) -> Text:
        """Decode a line containing ansi codes.

        Args:
            line (str): A line of terminal output.

        Returns:
            Text: A Text instance marked up according to ansi codes.
        """
        from_ansi = Color.from_ansi
        from_rgb = Color.from_rgb
        _Style = Style
        text = Text()
        append = text.append
        line = line.rsplit("\r", 1)[-1]
        for plain_text, sgr, osc in _ansi_tokenize(line):
            if plain_text:
                append(plain_text, self.style or None)
            elif osc is not None:
                if osc.startswith("8;"):
                    _params, semicolon, link = osc[2:].partition(";")
                    if semicolon:
                        self.style = self.style.update_link(link or None)
            elif sgr is not None:
                # Translate in to semi-colon separated codes
                # Ignore invalid codes, because we want to be lenient
                codes = [
                    min(255, int(_code) if _code else 0)
                    for _code in sgr.split(";")
                    if _code.isdigit() or _code == ""
                ]
                iter_codes = iter(codes)
                for code in iter_codes:
                    if code == 0:
                        # reset
                        self.style = _Style.null()
                    elif code in SGR_STYLE_MAP:
                        # styles
                        self.style += _Style.parse(SGR_STYLE_MAP[code])
                    elif code == 38:
                        #  Foreground
                        with suppress(StopIteration):
                            color_type = next(iter_codes)
                            if color_type == 5:
                                self.style += _Style.from_color(
                                    from_ansi(next(iter_codes))
                                )
                            elif color_type == 2:
                                self.style += _Style.from_color(
                                    from_rgb(
                                        next(iter_codes),
                                        next(iter_codes),
                                        next(iter_codes),
                                    )
                                )
                    elif code == 48:
                        # Background
                        with suppress(StopIteration):
                            color_type = next(iter_codes)
                            if color_type == 5:
                                self.style += _Style.from_color(
                                    None, from_ansi(next(iter_codes))
                                )
                            elif color_type == 2:
                                self.style += _Style.from_color(
                                    None,
                                    from_rgb(
                                        next(iter_codes),
                                        next(iter_codes),
                                        next(iter_codes),
                                    ),
                                )

        return text


if sys.platform != "win32" and __name__ == "__main__":  # pragma: no cover
    import io
    import os
    import pty
    import sys

    decoder = AnsiDecoder()

    stdout = io.BytesIO()

    def read(fd: int) -> bytes:
        data = os.read(fd, 1024)
        stdout.write(data)
        return data

    pty.spawn(sys.argv[1:], read)

    from .console import Console

    console = Console(record=True)

    stdout_result = stdout.getvalue().decode("utf-8")
    print(stdout_result)

    for line in decoder.decode(stdout_result):
        console.print(line)

    console.save_html("stdout.html")
241 lines•6.7 KB
python
.venv/Lib/site-packages/pip/_internal/index/collector.py
Raw Download
Find: Go to:
"""
The main purpose of this module is to expose LinkCollector.collect_sources().
"""

import collections
import email.message
import functools
import itertools
import json
import logging
import os
import urllib.parse
import urllib.request
from dataclasses import dataclass
from html.parser import HTMLParser
from optparse import Values
from typing import (
    Callable,
    Dict,
    Iterable,
    List,
    MutableMapping,
    NamedTuple,
    Optional,
    Protocol,
    Sequence,
    Tuple,
    Union,
)

from pip._vendor import requests
from pip._vendor.requests import Response
from pip._vendor.requests.exceptions import RetryError, SSLError

from pip._internal.exceptions import NetworkConnectionError
from pip._internal.models.link import Link
from pip._internal.models.search_scope import SearchScope
from pip._internal.network.session import PipSession
from pip._internal.network.utils import raise_for_status
from pip._internal.utils.filetypes import is_archive_file
from pip._internal.utils.misc import redact_auth_from_url
from pip._internal.vcs import vcs

from .sources import CandidatesFromPage, LinkSource, build_source

logger = logging.getLogger(__name__)

ResponseHeaders = MutableMapping[str, str]


def _match_vcs_scheme(url: str) -> Optional[str]:
    """Look for VCS schemes in the URL.

    Returns the matched VCS scheme, or None if there's no match.
    """
    for scheme in vcs.schemes:
        if url.lower().startswith(scheme) and url[len(scheme)] in "+:":
            return scheme
    return None


class _NotAPIContent(Exception):
    def __init__(self, content_type: str, request_desc: str) -> None:
        super().__init__(content_type, request_desc)
        self.content_type = content_type
        self.request_desc = request_desc


def _ensure_api_header(response: Response) -> None:
    """
    Check the Content-Type header to ensure the response contains a Simple
    API Response.

    Raises `_NotAPIContent` if the content type is not a valid content-type.
    """
    content_type = response.headers.get("Content-Type", "Unknown")

    content_type_l = content_type.lower()
    if content_type_l.startswith(
        (
            "text/html",
            "application/vnd.pypi.simple.v1+html",
            "application/vnd.pypi.simple.v1+json",
        )
    ):
        return

    raise _NotAPIContent(content_type, response.request.method)


class _NotHTTP(Exception):
    pass


def _ensure_api_response(url: str, session: PipSession) -> None:
    """
    Send a HEAD request to the URL, and ensure the response contains a simple
    API Response.

    Raises `_NotHTTP` if the URL is not available for a HEAD request, or
    `_NotAPIContent` if the content type is not a valid content type.
    """
    scheme, netloc, path, query, fragment = urllib.parse.urlsplit(url)
    if scheme not in {"http", "https"}:
        raise _NotHTTP()

    resp = session.head(url, allow_redirects=True)
    raise_for_status(resp)

    _ensure_api_header(resp)


def _get_simple_response(url: str, session: PipSession) -> Response:
    """Access an Simple API response with GET, and return the response.

    This consists of three parts:

    1. If the URL looks suspiciously like an archive, send a HEAD first to
       check the Content-Type is HTML or Simple API, to avoid downloading a
       large file. Raise `_NotHTTP` if the content type cannot be determined, or
       `_NotAPIContent` if it is not HTML or a Simple API.
    2. Actually perform the request. Raise HTTP exceptions on network failures.
    3. Check the Content-Type header to make sure we got a Simple API response,
       and raise `_NotAPIContent` otherwise.
    """
    if is_archive_file(Link(url).filename):
        _ensure_api_response(url, session=session)

    logger.debug("Getting page %s", redact_auth_from_url(url))

    resp = session.get(
        url,
        headers={
            "Accept": ", ".join(
                [
                    "application/vnd.pypi.simple.v1+json",
                    "application/vnd.pypi.simple.v1+html; q=0.1",
                    "text/html; q=0.01",
                ]
            ),
            # We don't want to blindly returned cached data for
            # /simple/, because authors generally expecting that
            # twine upload && pip install will function, but if
            # they've done a pip install in the last ~10 minutes
            # it won't. Thus by setting this to zero we will not
            # blindly use any cached data, however the benefit of
            # using max-age=0 instead of no-cache, is that we will
            # still support conditional requests, so we will still
            # minimize traffic sent in cases where the page hasn't
            # changed at all, we will just always incur the round
            # trip for the conditional GET now instead of only
            # once per 10 minutes.
            # For more information, please see pypa/pip#5670.
            "Cache-Control": "max-age=0",
        },
    )
    raise_for_status(resp)

    # The check for archives above only works if the url ends with
    # something that looks like an archive. However that is not a
    # requirement of an url. Unless we issue a HEAD request on every
    # url we cannot know ahead of time for sure if something is a
    # Simple API response or not. However we can check after we've
    # downloaded it.
    _ensure_api_header(resp)

    logger.debug(
        "Fetched page %s as %s",
        redact_auth_from_url(url),
        resp.headers.get("Content-Type", "Unknown"),
    )

    return resp


def _get_encoding_from_headers(headers: ResponseHeaders) -> Optional[str]:
    """Determine if we have any encoding information in our headers."""
    if headers and "Content-Type" in headers:
        m = email.message.Message()
        m["content-type"] = headers["Content-Type"]
        charset = m.get_param("charset")
        if charset:
            return str(charset)
    return None


class CacheablePageContent:
    def __init__(self, page: "IndexContent") -> None:
        assert page.cache_link_parsing
        self.page = page

    def __eq__(self, other: object) -> bool:
        return isinstance(other, type(self)) and self.page.url == other.page.url

    def __hash__(self) -> int:
        return hash(self.page.url)


class ParseLinks(Protocol):
    def __call__(self, page: "IndexContent") -> Iterable[Link]: ...


def with_cached_index_content(fn: ParseLinks) -> ParseLinks:
    """
    Given a function that parses an Iterable[Link] from an IndexContent, cache the
    function's result (keyed by CacheablePageContent), unless the IndexContent
    `page` has `page.cache_link_parsing == False`.
    """

    @functools.lru_cache(maxsize=None)
    def wrapper(cacheable_page: CacheablePageContent) -> List[Link]:
        return list(fn(cacheable_page.page))

    @functools.wraps(fn)
    def wrapper_wrapper(page: "IndexContent") -> List[Link]:
        if page.cache_link_parsing:
            return wrapper(CacheablePageContent(page))
        return list(fn(page))

    return wrapper_wrapper


@with_cached_index_content
def parse_links(page: "IndexContent") -> Iterable[Link]:
    """
    Parse a Simple API's Index Content, and yield its anchor elements as Link objects.
    """

    content_type_l = page.content_type.lower()
    if content_type_l.startswith("application/vnd.pypi.simple.v1+json"):
        data = json.loads(page.content)
        for file in data.get("files", []):
            link = Link.from_json(file, page.url)
            if link is None:
                continue
            yield link
        return

    parser = HTMLLinkParser(page.url)
    encoding = page.encoding or "utf-8"
    parser.feed(page.content.decode(encoding))

    url = page.url
    base_url = parser.base_url or url
    for anchor in parser.anchors:
        link = Link.from_element(anchor, page_url=url, base_url=base_url)
        if link is None:
            continue
        yield link


@dataclass(frozen=True)
class IndexContent:
    """Represents one response (or page), along with its URL.

    :param encoding: the encoding to decode the given content.
    :param url: the URL from which the HTML was downloaded.
    :param cache_link_parsing: whether links parsed from this page's url
                               should be cached. PyPI index urls should
                               have this set to False, for example.
    """

    content: bytes
    content_type: str
    encoding: Optional[str]
    url: str
    cache_link_parsing: bool = True

    def __str__(self) -> str:
        return redact_auth_from_url(self.url)


class HTMLLinkParser(HTMLParser):
    """
    HTMLParser that keeps the first base HREF and a list of all anchor
    elements' attributes.
    """

    def __init__(self, url: str) -> None:
        super().__init__(convert_charrefs=True)

        self.url: str = url
        self.base_url: Optional[str] = None
        self.anchors: List[Dict[str, Optional[str]]] = []

    def handle_starttag(self, tag: str, attrs: List[Tuple[str, Optional[str]]]) -> None:
        if tag == "base" and self.base_url is None:
            href = self.get_href(attrs)
            if href is not None:
                self.base_url = href
        elif tag == "a":
            self.anchors.append(dict(attrs))

    def get_href(self, attrs: List[Tuple[str, Optional[str]]]) -> Optional[str]:
        for name, value in attrs:
            if name == "href":
                return value
        return None


def _handle_get_simple_fail(
    link: Link,
    reason: Union[str, Exception],
    meth: Optional[Callable[..., None]] = None,
) -> None:
    if meth is None:
        meth = logger.debug
    meth("Could not fetch URL %s: %s - skipping", link, reason)


def _make_index_content(
    response: Response, cache_link_parsing: bool = True
) -> IndexContent:
    encoding = _get_encoding_from_headers(response.headers)
    return IndexContent(
        response.content,
        response.headers["Content-Type"],
        encoding=encoding,
        url=response.url,
        cache_link_parsing=cache_link_parsing,
    )


def _get_index_content(link: Link, *, session: PipSession) -> Optional["IndexContent"]:
    url = link.url.split("#", 1)[0]

    # Check for VCS schemes that do not support lookup as web pages.
    vcs_scheme = _match_vcs_scheme(url)
    if vcs_scheme:
        logger.warning(
            "Cannot look at %s URL %s because it does not support lookup as web pages.",
            vcs_scheme,
            link,
        )
        return None

    # Tack index.html onto file:// URLs that point to directories
    scheme, _, path, _, _, _ = urllib.parse.urlparse(url)
    if scheme == "file" and os.path.isdir(urllib.request.url2pathname(path)):
        # add trailing slash if not present so urljoin doesn't trim
        # final segment
        if not url.endswith("/"):
            url += "/"
        # TODO: In the future, it would be nice if pip supported PEP 691
        #       style responses in the file:// URLs, however there's no
        #       standard file extension for application/vnd.pypi.simple.v1+json
        #       so we'll need to come up with something on our own.
        url = urllib.parse.urljoin(url, "index.html")
        logger.debug(" file: URL is directory, getting %s", url)

    try:
        resp = _get_simple_response(url, session=session)
    except _NotHTTP:
        logger.warning(
            "Skipping page %s because it looks like an archive, and cannot "
            "be checked by a HTTP HEAD request.",
            link,
        )
    except _NotAPIContent as exc:
        logger.warning(
            "Skipping page %s because the %s request got Content-Type: %s. "
            "The only supported Content-Types are application/vnd.pypi.simple.v1+json, "
            "application/vnd.pypi.simple.v1+html, and text/html",
            link,
            exc.request_desc,
            exc.content_type,
        )
    except NetworkConnectionError as exc:
        _handle_get_simple_fail(link, exc)
    except RetryError as exc:
        _handle_get_simple_fail(link, exc)
    except SSLError as exc:
        reason = "There was a problem confirming the ssl certificate: "
        reason += str(exc)
        _handle_get_simple_fail(link, reason, meth=logger.info)
    except requests.ConnectionError as exc:
        _handle_get_simple_fail(link, f"connection error: {exc}")
    except requests.Timeout:
        _handle_get_simple_fail(link, "timed out")
    else:
        return _make_index_content(resp, cache_link_parsing=link.cache_link_parsing)
    return None


class CollectedSources(NamedTuple):
    find_links: Sequence[Optional[LinkSource]]
    index_urls: Sequence[Optional[LinkSource]]


class LinkCollector:
    """
    Responsible for collecting Link objects from all configured locations,
    making network requests as needed.

    The class's main method is its collect_sources() method.
    """

    def __init__(
        self,
        session: PipSession,
        search_scope: SearchScope,
    ) -> None:
        self.search_scope = search_scope
        self.session = session

    @classmethod
    def create(
        cls,
        session: PipSession,
        options: Values,
        suppress_no_index: bool = False,
    ) -> "LinkCollector":
        """
        :param session: The Session to use to make requests.
        :param suppress_no_index: Whether to ignore the --no-index option
            when constructing the SearchScope object.
        """
        index_urls = [options.index_url] + options.extra_index_urls
        if options.no_index and not suppress_no_index:
            logger.debug(
                "Ignoring indexes: %s",
                ",".join(redact_auth_from_url(url) for url in index_urls),
            )
            index_urls = []

        # Make sure find_links is a list before passing to create().
        find_links = options.find_links or []

        search_scope = SearchScope.create(
            find_links=find_links,
            index_urls=index_urls,
            no_index=options.no_index,
        )
        link_collector = LinkCollector(
            session=session,
            search_scope=search_scope,
        )
        return link_collector

    @property
    def find_links(self) -> List[str]:
        return self.search_scope.find_links

    def fetch_response(self, location: Link) -> Optional[IndexContent]:
        """
        Fetch an HTML page containing package links.
        """
        return _get_index_content(location, session=self.session)

    def collect_sources(
        self,
        project_name: str,
        candidates_from_page: CandidatesFromPage,
    ) -> CollectedSources:
        # The OrderedDict calls deduplicate sources by URL.
        index_url_sources = collections.OrderedDict(
            build_source(
                loc,
                candidates_from_page=candidates_from_page,
                page_validator=self.session.is_secure_origin,
                expand_dir=False,
                cache_link_parsing=False,
                project_name=project_name,
            )
            for loc in self.search_scope.get_index_urls_locations(project_name)
        ).values()
        find_links_sources = collections.OrderedDict(
            build_source(
                loc,
                candidates_from_page=candidates_from_page,
                page_validator=self.session.is_secure_origin,
                expand_dir=True,
                cache_link_parsing=True,
                project_name=project_name,
            )
            for loc in self.find_links
        ).values()

        if logger.isEnabledFor(logging.DEBUG):
            lines = [
                f"* {s.link}"
                for s in itertools.chain(find_links_sources, index_url_sources)
                if s is not None and s.link is not None
            ]
            lines = [
                f"{len(lines)} location(s) to search "
                f"for versions of {project_name}:"
            ] + lines
            logger.debug("\n".join(lines))

        return CollectedSources(
            find_links=list(find_links_sources),
            index_urls=list(index_url_sources),
        )
495 lines•15.9 KB
python
.venv/Lib/site-packages/pip/_vendor/rich/pretty.py
Raw Download
Find: Go to:
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()))
996 lines•35 KB
python
🚀 Support RSK World

Subscribe to our YouTube channel for latest tutorials & updates!



Click subscribe & support our work ❤️

About RSK World

Founded by Molla Samser, with Designer & Tester Rima Khatun, RSK World is your one-stop destination for free programming resources, source code, and development tools.

Founder: Molla Samser
Designer & Tester: Rima Khatun

Development

  • Game Development
  • Web Development
  • Mobile Development
  • AI Development
  • Development Tools

Legal

  • Terms & Conditions
  • Privacy Policy
  • Disclaimer

Contact Info

Nutanhat, Mongolkote
Purba Burdwan, West Bengal
India, 713147

+91 93305 39277

hello@rskworld.in
support@rskworld.in

© 2026 RSK World. All rights reserved.

Content used for educational purposes only. View Disclaimer