
0c@_ü  ã               @   sP   d  d l  m Z e r6 d  d l m Z d  d l m Z Gd d „  d e ƒ Z d S)é    )ÚMYPY_CHECK_RUNNING)ÚOptional)ÚFormatControlc               @   sC   e  Z d  Z d Z d d d d d g Z d d d d d	 d
 „ Z d S)ÚSelectionPreferenceszd
    Encapsulates the candidate selection preferences for downloading
    and installing files.
    Úallow_yankedÚallow_all_prereleasesÚformat_controlÚprefer_binaryÚignore_requires_pythonFNc             C   sC   | d k r d } | |  _  | |  _ | |  _ | |  _ | |  _ d S)aw  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.
        NF)r   r   r   r	   r
   )Úselfr   r   r   r	   r
   © r   úC/tmp/pip-build-jynh7p1z/pip/pip/_internal/models/selection_prefs.pyÚ__init__   s    				zSelectionPreferences.__init__)Ú__name__Ú
__module__Ú__qualname__Ú__doc__Ú	__slots__r   r   r   r   r   r      s   		r   N)Zpip._internal.utils.typingr   Ztypingr   Z#pip._internal.models.format_controlr   Úobjectr   r   r   r   r   Ú<module>   s   