ó ,º]c@s§dZddlZddlmZmZmZddlmZddlm Z m Z m Z m Z d„Z ejdƒZd„Zd „Zd ejfd „ƒYZdS( sL For the ``future`` package. Adds this import line: from __future__ import division at the top and changes any old-style divisions to be calls to past.utils.old_div so the code runs as before on Py2.6/2.7 and has the same behaviour on Py3. If "from __future__ import division" is already in effect, this fixer does nothing. iÿÿÿÿN(tLeaftNodetComma(t fixer_base(ttokent future_importttouch_import_toptwrap_in_fn_callcCs<tj}|j|ko;|jj|k o;|jj|k S(uw __future__.division redefines the meaning of a single slash for division, so we match that and only that. (RtSLASHttypet next_siblingt prev_sibling(tnodetslash((sG/usr/lib/python2.7/site-packages/libfuturize/fixes/fix_division_safe.pytmatch_divisions "s^[0-9]*[.][0-9]*$cCst|jƒpt|jƒS(N(t _is_floatyR R (R ((sG/usr/lib/python2.7/site-packages/libfuturize/fixes/fix_division_safe.pyt is_floaty"scCs{t|tƒr|d}nt|tƒr;tj|jƒSt|tƒrwt|jdtƒrw|jdjdkSntS(Niufloat( t isinstancetlistRtconst_retmatchtvalueRtchildrentFalse(texpr((sG/usr/lib/python2.7/site-packages/libfuturize/fixes/fix_division_safe.pyR&s tFixDivisionSafecBs8eZdZejZdZd„Zd„Zd„Z RS(is4 term<(not('/') any)+ '/' ((not('/') any))> cCs/tt|ƒj||ƒd|jk|_dS(sO Skip this fixer if "__future__.division" is already imported. tdivisionN(tsuperRt start_treetfuture_featurestskip(tselfttreetname((sG/usr/lib/python2.7/site-packages/libfuturize/fixes/fix_division_safe.pyR>scCsì|j|jjkrèt}t}g}xœ|jD]‘}|rIt}q1nt|ƒr¯t|ƒ r¯t}d|d_t d|t ƒ|j j ƒgd|jƒg}t}q1|j |j ƒƒq1W|rèt|j|d|jƒSntS(u™ Since the tree needs to be fixed once and only once if and only if it matches, we can start discarding matches after the first. uitold_divtprefixtfixers_applied(R tsymsttermRRRRtTrueR#RRR tclonetappendRR$(RR tmatchedRRtchild((sG/usr/lib/python2.7/site-packages/libfuturize/fixes/fix_division_safe.pyREs&  cCs.|jr dStd|ƒtdd|ƒ|S(Nudivisionu past.utilsuold_div(RRR(RR tresults((sG/usr/lib/python2.7/site-packages/libfuturize/fixes/fix_division_safe.pyt transformcs   ( t__name__t __module__t run_orderRRt _accept_typetPATTERNRRR-(((sG/usr/lib/python2.7/site-packages/libfuturize/fixes/fix_division_safe.pyR4s    (t__doc__tretlib2to3.fixer_utilRRRtlib2to3Rtlibfuturize.fixer_utilRRRRRtcompileRRRtBaseFixR(((sG/usr/lib/python2.7/site-packages/libfuturize/fixes/fix_division_safe.pyts "