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 f d �  �  YZ d S(	   s  Fixer that changes map(F, ...) into list(map(F, ...)) unless there
exists a 'from future_builtins import map' statement in the top-level
namespace.
As a special case, map(None, X) is changed into list(X).  (This is
necessary because the semantics are changed in this case -- the new
map(None, X) is equivalent to [(x,) for x in X].)
We avoid the transformation (except for the special case mentioned
above) if the map() call is directly contained in iter(<>), list(<>),
tuple(<>), sorted(<>), ...join(<>), or for V in <>:.
NOTE: This is still not correct if the original code was depending on
map(F, X, Y, ...) to go on until the longest argument is exhausted,
substituting None for missing values -- like zip(), it now stops as
soon as the shortest argument is exhausted.
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    map_none=power<
        'map'
        trailer< '(' arglist< 'None' ',' arg=any [','] > ')' >
    >
    |
    map_lambda=power<
        'map'
        trailer<
            '('
            arglist<
                lambdef< 'lambda'
                         (fp=NAME | vfpdef< '(' fp=NAME ')'> ) ':' xp=any
                >
                ','
                it=any
            >
            ')'
        >
    >
    |
    power<
        'map' trailer< '(' [arglist=any] ')' >
    >
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 � d  Sn  t | � rDd  S| j �  } d | _ t t	 d � | g � } | j | _ | S(   Ns   You should use a for loop hereu    u   listt
   map_lambdat   xpt   fpt   itt   map_nonet   argt   arglisti    t   Nonesj   cannot convert map(None, ...) with multiple arguments because map() now truncates to the shortest sequence(   t   should_skipt   parentt   typet   symst   simple_stmtt   warningt   clonet   prefixR   R   R   R   t   childrenR    t   NAMEt   valueR   R   (   t   selft   nodet   resultst   newt   args(    (    s-   /usr/lib64/python2.7/lib2to3/fixes/fix_map.pyt	   transform;   s6    	
	(   t   __name__t
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   BM_compatiblet   PATTERNt   skip_onR    (    (    (    s-   /usr/lib64/python2.7/lib2to3/fixes/fix_map.pyR      s   N(   t   __doc__t   pgen2R    t    R   t
   fixer_utilR   R   R   R   t   pygramR   R   t   ConditionalFixR   (    (    (    s-   /usr/lib64/python2.7/lib2to3/fixes/fix_map.pyt   <module>   s
   "