B
    Uvg                 @   s   d Z ddlmZ ddlZddlZddlmZ ddlmZ	 ddl
mZ erXddlmZmZ G dd	 d	eZdadd
dZdd ZdddZdS )zN
A module that implements tooling to enable easy warnings about deprecations.
    )absolute_importN)parse)__version__)MYPY_CHECK_RUNNING)AnyOptionalc               @   s   e Zd ZdS )PipDeprecationWarningN)__name__
__module____qualname__ r   r   @/tmp/pip-install-r_9ig3yj/pip/pip/_internal/utils/deprecation.pyr      s   r   c             C   sZ   |d k	r$t d k	rVt | ||||| n2t|trDtd}||  nt | ||||| d S )Nzpip._internal.deprecations)_original_showwarning
issubclassr   logging	getLoggerwarning)messagecategoryfilenamelinenofilelineloggerr   r   r   _showwarning   s    

r   c               C   s(   t jdtdd td kr$t jatt _d S )NdefaultT)append)warningssimplefilterr   r   showwarningr   r   r   r   r   install_warning_logger+   s    r    c             C   st   d|  }|dk	r|d |7 }|dk	r@dt| }|d |7 }|dk	r`ttt|kr`t|tj|tdd dS )a  Helper to deprecate existing functionality.

    reason:
        Textual reason shown to the user about why this functionality has
        been deprecated.
    replacement:
        Textual suggestion shown to the user about what alternative
        functionality they can use.
    gone_in:
        The version of pip does this functionality should get removed in.
        Raises errors if pip's current version is greater than or equal to
        this.
    issue:
        Issue number on the tracker that would serve as a useful place for
        users to find related discussion and provide feedback.

    Always pass replacement, gone_in and issue as keyword arguments for clarity
    at the call site.
    zDEPRECATION: Nz A possible replacement is {}.z#https://github.com/pypa/pip/issues/z. You can find discussion regarding this at {}.   )r   
stacklevel)formatstrr   current_versionr   r   warn)reasonreplacementgone_inissuer   urlr   r   r   
deprecated6   s    r,   )NN)N)__doc__
__future__r   r   r   Zpip._vendor.packaging.versionr   pipr   r%   pip._internal.utils.typingr   typingr   r   Warningr   r   r   r    r,   r   r   r   r   <module>   s   
