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59\A3R:\F3\CE"\B6\80\88\00\00i1u4ê\E9\F2á\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>C///</title>
</head>
"""Provide basic warnings used by setuptools modules.

Using custom classes (other than ``UserWarning``) allow users to set
``PYTHONWARNINGS`` filters to run tests and prepare for upcoming changes in
setuptools.
"""

from __future__ import annotations

import os
import warnings
from datetime import date
from inspect import cleandoc
from textwrap import indent
from typing import TYPE_CHECKING

if TYPE_CHECKING:
    from typing_extensions import TypeAlias

_DueDate: TypeAlias = tuple[int, int, int]  # time tuple
_INDENT = 8 * " "
_TEMPLATE = f"""{80 * '*'}\n{{details}}\n{80 * '*'}"""


class SetuptoolsWarning(UserWarning):
    """Base class in ``setuptools`` warning hierarchy."""

    @classmethod
    def emit(
        cls,
        summary: str | None = None,
        details: str | None = None,
        due_date: _DueDate | None = None,
        see_docs: str | None = None,
        see_url: str | None = None,
        stacklevel: int = 2,
        **kwargs,
    ) -> None:
        """Private: reserved for ``setuptools`` internal use only"""
        # Default values:
        summary_ = summary or getattr(cls, "_SUMMARY", None) or ""
        details_ = details or getattr(cls, "_DETAILS", None) or ""
        due_date = due_date or getattr(cls, "_DUE_DATE", None)
        docs_ref = see_docs or getattr(cls, "_SEE_DOCS", None)
        docs_url = docs_ref and f"https://setuptools.pypa.io/en/latest/{docs_ref}"
        see_url = see_url or getattr(cls, "_SEE_URL", None)
        due = date(*due_date) if due_date else None

        text = cls._format(summary_, details_, due, see_url or docs_url, kwargs)
        if due and due < date.today() and _should_enforce():
            raise cls(text)
        warnings.warn(text, cls, stacklevel=stacklevel + 1)

    @classmethod
    def _format(
        cls,
        summary: str,
        details: str,
        due_date: date | None = None,
        see_url: str | None = None,
        format_args: dict | None = None,
    ) -> str:
        """Private: reserved for ``setuptools`` intern