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U
    ÀÒ.eT  ã                   @   s2   d dl Z d dlmZ ee jƒG dd„ deƒƒZdS )é    N)Úadd_metaclassc                       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/usr/lib/python3.8/site-packages/pip/_internal/distributions/base.pyr      s    zAbstractDistribution.__init__c                 C   s
   t ƒ ‚d S r   ©ÚNotImplementedError)r   r   r   r   Úget_pkg_resources_distribution   s    z3AbstractDistribution.get_pkg_resources_distributionc                 C   s
   t ƒ ‚d S r   r   )r   ÚfinderZ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ABCMetaÚobjectr   r   r   r   r   Ú<module>   s   