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Editing: fix_division_safe.cpython-36.pyc
3 ��jf/ � @ s| d Z ddlZddlmZmZmZ ddlmZ ddlm Z m Z m Z m Z dd� Z ejd�Zd d � Zd d � ZG d d� dej�ZdS )aL 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. � N)�Leaf�Node�Comma)� fixer_base)�token� future_import�touch_import_top�wrap_in_fn_callc C s, t j}| j|ko*| jj|k o*| jj|k S )zw __future__.division redefines the meaning of a single slash for division, so we match that and only that. )r �SLASH�type� next_sibling� prev_sibling)�nodeZslash� r �E/tmp/pip-build-s1i5078x/future/libfuturize/fixes/fix_division_safe.py�match_division s r z^[0-9]*[.][0-9]*$c C s t | j�pt | j�S )N)� _is_floatyr r )r r r r � is_floaty" s r c C sV t | t�r| d } t | t�r(tj| j�S t | t�rRt | jd t�rR| jd jdkS dS )Nr �floatF)� isinstance�listr �const_re�match�valuer �children)�exprr r r r & s r c s: e Zd ZdZejZdZ� fdd�Zdd� Z dd� Z � Z S ) �FixDivisionSafe� z4 term<(not('/') any)+ '/' ((not('/') any))> c s" t t| �j||� d|jk| _dS )zO Skip this fixer if "__future__.division" is already imported. �divisionN)�superr � start_treeZfuture_features�skip)�self�tree�name)� __class__r r r > s zFixDivisionSafe.start_treec C s� |j | jjkr�d}d}g }xn|jD ]d}|r0d}q"t|�rxt|� rxd}d|d _td|t� |j j � g |jd�g}d}q"|j |j � � q"W |r�t t d�r�t |j ||jd�S t |j |�S dS ) z� Since the tree needs to be fixed once and only once if and only if it matches, we can start discarding matches after the first. FT� r �old_div)�prefix�fixers_applied)r) )r ZsymsZtermr r r r( r r r �clone�append�hasattrr r) )r" r �matchedr! r �childr r r r E s* zFixDivisionSafe.matchc C s$ | j r d S td|� tdd|� |S )Nr z past.utilsr' )r! r r )r" r �resultsr r r � transformh s zFixDivisionSafe.transform) �__name__� __module__� __qualname__Z run_orderr r Z _accept_typeZPATTERNr r r0 � __classcell__r r )r% r r 4 s #r )�__doc__�reZlib2to3.fixer_utilr r r Zlib2to3r Zlibfuturize.fixer_utilr r r r r �compiler r r ZBaseFixr r r r r �<module> s
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