view env/lib/python3.9/site-packages/pip/_internal/models/ @ 0:4f3585e2f14b draft default tip

"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author shellac
date Mon, 22 Mar 2021 18:12:50 +0000
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from pip._internal.utils.typing import MYPY_CHECK_RUNNING

    from typing import Optional

    from pip._internal.models.format_control import FormatControl

class SelectionPreferences:
    Encapsulates the candidate selection preferences for downloading
    and installing files.

    __slots__ = ['allow_yanked', 'allow_all_prereleases', 'format_control',
                 'prefer_binary', 'ignore_requires_python']

    # Don't include an allow_yanked default value to make sure each call
    # site considers whether yanked releases are allowed. This also causes
    # that decision to be made explicit in the calling code, which helps
    # people when reading the code.
    def __init__(
        allow_yanked,  # type: bool
        allow_all_prereleases=False,  # type: bool
        format_control=None,          # type: Optional[FormatControl]
        prefer_binary=False,          # type: bool
        ignore_requires_python=None,  # type: Optional[bool]
        # type: (...) -> None
        """Create a SelectionPreferences object.

        :param allow_yanked: Whether files marked as yanked (in the sense
            of PEP 592) are permitted to be candidates for install.
        :param format_control: A FormatControl object or None. Used to control
            the selection of source packages / binary packages when consulting
            the index and links.
        :param prefer_binary: Whether to prefer an old, but valid, binary
            dist over a new source dist.
        :param ignore_requires_python: Whether to ignore incompatible
            "Requires-Python" values in links. Defaults to False.
        if ignore_requires_python is None:
            ignore_requires_python = False

        self.allow_yanked = allow_yanked
        self.allow_all_prereleases = allow_all_prereleases
        self.format_control = format_control
        self.prefer_binary = prefer_binary
        self.ignore_requires_python = ignore_requires_python