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j6 g � Z7 d3 � Z8 d5 d4 � Z9 d5 S(6 s1 Utility functions, node construction macros, etc.i����( t islicei ( t token( t Leaft Node( t python_symbols( t patcompc C s% t t j | t t j d � | g � S( Nu =( R t symst argumentR R t EQUAL( t keywordt value( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt
KeywordArg s c C s t t j d � S( Nu (( R R t LPAR( ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt LParen s c C s t t j d � S( Nu )( R R t RPAR( ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt RParen s c C sl t | t � s | g } n t | t � s? d | _ | g } n t t j | t t j d d d �g | � S( s Build an assignment statementu u =t prefix( t
isinstancet listR R R t atomR R R ( t targett source( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt Assign s c C s t t j | d | �S( s Return a NAME leafR ( R R t NAME( t nameR ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt Name& s c C s | t t j t � | g � g S( s A node tuple for obj.attr( R R t trailert Dot( t objt attr( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt Attr* s c C s t t j d � S( s A comma leafu ,( R R t COMMA( ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt Comma. s c C s t t j d � S( s A period (.) leafu .( R R t DOT( ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyR 2 s c C sM t t j | j � | j � g � } | rI | j d t t j | � � n | S( s- A parenthesised argument list, used by Call()i ( R R R t clonet insert_childt arglist( t argst lparent rparent node( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt ArgList6 s $ c C s: t t j | t | � g � } | d k r6 | | _ n | S( s A function callN( R R t powerR) t NoneR ( t func_nameR% R R( ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt Call= s c C s t t j d � S( s A newline literalu
( R R t NEWLINE( ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt NewlineD s c C s t t j d � S( s A blank lineu ( R R R. ( ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt BlankLineH s c C s t t j | d | �S( NR ( R R t NUMBER( t nR ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt NumberL s c C s1 t t j t t j d � | t t j d � g � S( s A numeric or string subscriptu [u ]( R R R R R t LBRACEt RBRACE( t
index_node( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt SubscriptO s c C s t t j | d | �S( s
A string leafR ( R R t STRING( t stringR ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt StringU s c C s d | _ d | _ d | _ t t j d � } d | _ t t j d � } d | _ | | | | g } | r� d | _ t t j d � } d | _ | j t t j | | g � � n t t j | t t j | � g � } t t j
t t j d � | t t j d � g � S( su A list comprehension of the form [xp for fp in it if test].
If test is None, the "if test" part is omitted.
u u u foru inu ifu [u ](
R R R R t appendR R t comp_ift listmakert comp_forR R4 R5 ( t xpt fpt itt testt for_leaft in_leaft
inner_argst if_leaft inner( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt ListCompY s$ "$ c C s x | D] } | j � q Wt t j d � t t j | d d �t t j d d d �t t j | � g } t t j | � } | S( sO Return an import statement in the form:
from package import name_leafsu fromR u u import( t removeR R R R R t import_as_namest import_from( t package_namet
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c C s� t | t � r. | j t � t � g k r. t St | t � o� t | j � d k o� t | j d t � o� t | j d t � o� t | j d t � o� | j d j d k o� | j d j d k S( s( Does the node represent a tuple literal?i i i i u (u )( R R RO R
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R ( R( ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt parenthesize� s t sortedR t sett anyt allt tuplet sumt mint maxt enumeratec c s4 t | | � } x | r/ | Vt | | � } q Wd S( sl Follow an attribute chain.
If you have a chain of objects where a.foo -> b, b.foo-> c, etc,
use this to iterate over all objects in the chain. Iteration is
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Args:
obj: the starting object
attr: the name of the chaining attribute
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S( s Returns true if node is in an environment where all that is required
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See test_map_nochange in test_fixers.py for some examples and tests.
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pats_builtR t compile_patternt p0t p1t p2RR t zipRb t matcht False( R( t patternst patternRc t results( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt in_special_context� s %"c C s� | j } | d k r+ | j t j k r+ t S| j } | j t j t j f k rS t S| j t j
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typedargslistR RR ( R( t prevRc ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt is_probably_builtin� s % c C sp xi | d k rk | j t j k r_ t | j � d k r_ | j d } | j t j k r_ | j Sn | j } q Wd S( s Find the indentation of *node*.i i u N(
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make_suite s c C s; x4 | j t j k r6 | j } | s t d � � q q W| S( s Find the top level namespace.s, root found before file_input node was found.( Rq R t
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ValueError( R( ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt find_root s
c C s" t | t | � | � } t | � S( s� Returns true if name is imported from package at the
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None for the package and 'foo' for the name. ( t find_bindingR� t bool( t packageR R( t binding( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt does_tree_import s c C s | j t j t j f k S( s0 Returns true if the node is an import statement.( Rq R t import_nameRK ( R( ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt is_import" s c C s� d � } t | � } t | | | � r+ d Sd } } xn t | j � D]] \ } } | | � sc qE n x1 t | j | � D] \ } } | | � sw Pqw qw W| | } PqE W| d k rxb t | j � D]N \ } } | j t j k r� | j r� | j d j t j k r� | d } Pq� q� Wn | d k r\t
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if it was not imported. c S s, | j t j k o+ | j o+ t | j d � S( Ni ( Rq R t simple_stmtRO R� ( R( ( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyt is_import_stmt) s Ni i u importR u ( R� R� R_ RO Rq R R� R R8 R+ R R� R R RQ R/ R# ( R� R R( R� t roott
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k r|t | t | j d � | � } | r� | } q x t | j d � D]b \ } } | j t j
k r| j d k rt | t | j | d � | � } | ru| } quqqWn� | j t k r�| j d j | k r�| } nv t | | | � r�| } n[ | j t j k r�t | | | � } n4 | j t j k r t | | j d � r | } q n | r
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R+ ( R R( t nodes( ( s. /usr/local/lib/python2.7/lib2to3/fixer_util.pyR� s !c C s' | j t j k r| r| j d } | j t j k r� x� | j D]Z } | j t j k rw | j d j | k r� | SqB | j t j k rB | j | k rB | SqB Wq#| j t j k r� | j d } | j t j k r| j | k r| Sq#| j t j k r#| j | k r#| Sn| j t j k r#| rMt
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