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ðŸ“ ..
ðŸ“„ __init__.py(1.62 KB)
ðŸ“ __pycache__
ðŸ“„ _asyncbackend.py(2.34 KB)
ðŸ“„ _asyncio_backend.py(8.84 KB)
ðŸ“„ _ddr.py(5.12 KB)
ðŸ“„ _features.py(2.43 KB)
ðŸ“„ _immutable_ctx.py(2.4 KB)
ðŸ“„ _trio_backend.py(8.27 KB)
ðŸ“„ asyncbackend.py(2.73 KB)
ðŸ“„ asyncquery.py(30.1 KB)
ðŸ“„ asyncresolver.py(17.43 KB)
ðŸ“„ dnssec.py(40.74 KB)
ðŸ“ dnssecalgs
ðŸ“„ dnssectypes.py(1.76 KB)
ðŸ“„ e164.py(3.88 KB)
ðŸ“„ edns.py(16.69 KB)
ðŸ“„ entropy.py(4.14 KB)
ðŸ“„ enum.py(3.6 KB)
ðŸ“„ exception.py(5.81 KB)
ðŸ“„ flags.py(2.69 KB)
ðŸ“„ grange.py(2.09 KB)
ðŸ“„ immutable.py(1.97 KB)
ðŸ“„ inet.py(5.64 KB)
ðŸ“„ ipv4.py(2.49 KB)
ðŸ“„ ipv6.py(6.4 KB)
ðŸ“„ message.py(66.59 KB)
ðŸ“„ name.py(41.78 KB)
ðŸ“„ namedict.py(3.91 KB)
ðŸ“„ nameserver.py(9.88 KB)
ðŸ“„ node.py(12.37 KB)
ðŸ“„ opcode.py(2.67 KB)
ðŸ“„ py.typed(0 B)
ðŸ“„ query.py(54.98 KB)
ðŸ“ quic
ðŸ“„ rcode.py(4.06 KB)
ðŸ“„ rdata.py(30.29 KB)
ðŸ“„ rdataclass.py(2.91 KB)
ðŸ“„ rdataset.py(16.27 KB)
ðŸ“„ rdatatype.py(7.27 KB)
ðŸ“ rdtypes
ðŸ“„ renderer.py(10.99 KB)
ðŸ“„ resolver.py(72 KB)
ðŸ“„ reversename.py(3.74 KB)
ðŸ“„ rrset.py(8.96 KB)
ðŸ“„ serial.py(3.52 KB)
ðŸ“„ set.py(9 KB)
ðŸ“„ tokenizer.py(23.03 KB)
ðŸ“„ transaction.py(22.06 KB)
ðŸ“„ tsig.py(11.15 KB)
ðŸ“„ tsigkeyring.py(2.57 KB)
ðŸ“„ ttl.py(2.91 KB)
ðŸ“„ update.py(11.96 KB)
ðŸ“„ version.py(1.88 KB)
ðŸ“„ versioned.py(11.49 KB)
ðŸ“„ win32util.py(8.67 KB)
ðŸ“„ wire.py(2.76 KB)
ðŸ“„ xfr.py(12.96 KB)
ðŸ“„ zone.py(50.87 KB)
ðŸ“„ zonefile.py(27.27 KB)
ðŸ“„ zonetypes.py(690 B)

Editing: _features.py

# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license

import importlib.metadata
import itertools
import string
from typing import Dict, List, Tuple

def _tuple_from_text(version: str) -> Tuple:
    text_parts = version.split(".")
    int_parts = []
    for text_part in text_parts:
        digit_prefix = "".join(
            itertools.takewhile(lambda x: x in string.digits, text_part)
        )
        try:
            int_parts.append(int(digit_prefix))
        except Exception:
            break
    return tuple(int_parts)

def _version_check(
    requirement: str,
) -> bool:
    """Is the requirement fulfilled?

The requirement must be of the form

package>=version
    """
    package, minimum = requirement.split(">=")
    try:
        version = importlib.metadata.version(package)
        # This shouldn't happen, but it apparently can.
        if version is None:
            return False
    except Exception:
        return False
    t_version = _tuple_from_text(version)
    t_minimum = _tuple_from_text(minimum)
    if t_version < t_minimum:
        return False
    return True

_cache: Dict[str, bool] = {}

def have(feature: str) -> bool:
    """Is *feature* available?

This tests if all optional packages needed for the
    feature are available and recent enough.

Returns ``True`` if the feature is available,
    and ``False`` if it is not or if metadata is
    missing.
    """
    value = _cache.get(feature)
    if value is not None:
        return value
    requirements = _requirements.get(feature)
    if requirements is None:
        # we make a cache entry here for consistency not performance
        _cache[feature] = False
        return False
    ok = True
    for requirement in requirements:
        if not _version_check(requirement):
            ok = False
            break
    _cache[feature] = ok
    return ok

def force(feature: str, enabled: bool) -> None:
    """Force the status of *feature* to be *enabled*.

This method is provided as a workaround for any cases
    where importlib.metadata is ineffective, or for testing.
    """
    _cache[feature] = enabled

_requirements: Dict[str, List[str]] = {
    ### BEGIN generated requirements
    "dnssec": ["cryptography>=43"],
    "doh": ["httpcore>=1.0.0", "httpx>=0.26.0", "h2>=4.1.0"],
    "doq": ["aioquic>=1.0.0"],
    "idna": ["idna>=3.7"],
    "trio": ["trio>=0.23"],
    "wmi": ["wmi>=1.5.1"],
    ### END generated requirements
}

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Editing: _features.py

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