B
    `’»d‘  ã               @   sr   d dl Z d dlmZ d dlmZ erTd dlmZ d dlmZ d dl	m
Z
 d dlmZ ee jƒG dd	„ d	eƒƒZdS )
é    N)Úadd_metaclass)ÚMYPY_CHECK_RUNNING)ÚOptional)ÚDistribution)ÚInstallRequirement)ÚPackageFinderc                   s<   e Zd ZdZ‡ fdd„Zejdd„ ƒZejdd„ ƒZ‡  Z	S )ÚAbstractDistributiona  A base class for handling installable artifacts.

    The requirements for anything installable are as follows:

     - we must be able to determine the requirement name
       (or we can't correctly handle the non-upgrade case).

     - for packages with setup requirements, we must also be able
       to determine their requirements without installing additional
       packages (for the same reason as run-time dependencies)

     - we must be able to create a Distribution object exposing the
       above metadata.
    c                s   t t| ƒ ¡  || _d S )N)Úsuperr   Ú__init__Úreq)Úselfr   )Ú	__class__© úD/tmp/pip-unpacked-wheel-hu9qqap1/pip/_internal/distributions/base.pyr
       s    zAbstractDistribution.__init__c             C   s
   t ƒ ‚d S )N)ÚNotImplementedError)r   r   r   r   Úget_pkg_resources_distribution%   s    z3AbstractDistribution.get_pkg_resources_distributionc             C   s
   t ƒ ‚d S )N)r   )r   ÚfinderÚbuild_isolationr   r   r   Úprepare_distribution_metadata*   s    z2AbstractDistribution.prepare_distribution_metadata)
Ú__name__Ú
__module__Ú__qualname__Ú__doc__r
   ÚabcÚabstractmethodr   r   Ú__classcell__r   r   )r   r   r      s   r   )r   Zpip._vendor.sixr   Úpip._internal.utils.typingr   Útypingr   Zpip._vendor.pkg_resourcesr   Zpip._internal.reqr   Ú"pip._internal.index.package_finderr   ÚABCMetaÚobjectr   r   r   r   r   Ú<module>   s   