
j^c           @   s   d  d l  m Z d  d l m Z d  d l m Z e rg d  d l m Z m Z m	 Z	 e	 d d e
 Z n  d e f d     YZ d	 S(
   i(   t   contextmanager(   t	   ExitStack(   t   MYPY_CHECK_RUNNING(   t   Iteratort   ContextManagert   TypeVart   _Tt	   covariantt   CommandContextMixInc           B   s)   e  Z d    Z e d    Z d   Z RS(   c         C   s,   t  t |   j   t |  _ t   |  _ d  S(   N(   t   superR   t   __init__t   Falset   _in_main_contextR   t   _main_context(   t   self(    (    s2   site-packages/pip/_internal/cli/command_context.pyR
      s    	c         c   sC   |  j  s t  t |  _  z |  j 
 d  VWd  QXWd  t |  _  Xd  S(   N(   R   t   AssertionErrort   TrueR   R   (   R   (    (    s2   site-packages/pip/_internal/cli/command_context.pyt   main_context   s    	
c         C   s   |  j  s t  |  j j |  S(   N(   R   R   R   t   enter_context(   R   t   context_provider(    (    s2   site-packages/pip/_internal/cli/command_context.pyR       s    (   t   __name__t
   __module__R
   R    R   R   (    (    (    s2   site-packages/pip/_internal/cli/command_context.pyR      s   	N(   t
   contextlibR    t   pip._vendor.contextlib2R   t   pip._internal.utils.typingR   t   typingR   R   R   R   R   t   objectR   (    (    (    s2   site-packages/pip/_internal/cli/command_context.pyt   <module>   s   