Lc @ su d Z d d k l Z d d k l Z d d k l Z l Z l Z l Z d d k
l Z d e i
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.
i ( t token( t
fixer_base( t Namet Callt ListCompt in_special_context( t python_symbolst FixMapc B s e Z d Z d Z d Z RS( s
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] ')' >
>
s future_builtins.mapc C s | i | o d S| i i t i j oA | i | d | i } d | _ t t d | g } nd | j o4 t
| d i | d i | d i } n d | j o | d i } n d
| j og | d
} | i t i j oF | i d i t
i j o, | i d i d j o | i | d
d Sn t | o d S| i } d | _ t t d | g } | i | _ | 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/lib/python2.6/lib2to3/fixes/fix_map.pyt transform: s6
( t __name__t
__module__t PATTERNt skip_onR ( ( ( s+ /usr/lib/python2.6/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/lib/python2.6/lib2to3/fixes/fix_map.pyt <module> s
"
y~or5J ={Eeu磝Qk ᯘG{?+]ן?wM3X^歌>{7پK>on\jy R g/=fOroNVv~Y+ NGuÝHWyw[eQʨSb> >}Gmx[o[<{Ϯ_qF vM IENDB`
