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__init__.cpython-37.pyc
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_looper.cpython-37.pyc
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compat3.cpython-37.pyc
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Edit: _looper.cpython-37.pyc
B ��]D � @ sR d Z ddlZddlmZ dgZG dd� de�ZG dd� de�ZG dd � d e�ZdS ) a Helper for looping over sequences, particular in templates. Often in a loop in a template it's handy to know what's next up, previously up, if this is the first or last item in the sequence, etc. These can be awkward to manage in a normal Python loop, but using the looper you can get a better sense of the context. Use like:: >>> for loop, item in looper(['a', 'b', 'c']): ... print(loop.number, item) ... if not loop.last: ... print('---') 1 a --- 2 b --- 3 c � N)� basestring_�looperc @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) r z� Helper for looping (particularly in templates) Use this like:: for loop, item in looper(seq): if loop.first: ... c C s || _ d S )N)�seq)�selfr � r �@/opt/alt/python37/lib/python3.7/site-packages/tempita/_looper.py�__init__& s zlooper.__init__c C s t | j�S )N)� looper_iterr )r r r r �__iter__) s zlooper.__iter__c C s d| j j| jf S )Nz <%s for %r>)� __class__�__name__r )r r r r �__repr__, s zlooper.__repr__N)r � __module__� __qualname__�__doc__r r r r r r r r s c @ s2 e Zd Zdd� Zdd� Zdd� Zejdk r.eZdS ) r c C s t |�| _d| _d S )Nr )�listr �pos)r r r r r r 3 s zlooper_iter.__init__c C s | S )Nr )r r r r r 7 s zlooper_iter.__iter__c C s@ | j t| j�krt�t| j| j �| j| j f}| j d7 _ |S )N� )r �lenr � StopIteration�loop_pos)r �resultr r r �__next__: s zlooper_iter.__next__�3N) r r r r r r �sys�version�nextr r r r r 1 s r c @ s� e Zd Zdd� Zdd� Zdd� Zee�Zdd� Zee�Zd d � Zee�Zd d � Z ee �Z e j d k rfe Z dd� Z ee �Z dd� Zee�Zdd� Zee�Zdd� Zee�Zdd� Zee�Zdd� Zee�Zd!dd �Zd"d d �Zd d � ZdS )#r c C s || _ || _d S )N)r r )r r r r r r r G s zloop_pos.__init__c C s d| j | j | jf S )Nz<loop pos=%r at %r>)r r )r r r r r K s zloop_pos.__repr__c C s | j S )N)r )r r r r �indexO s zloop_pos.indexc C s | j d S )Nr )r )r r r r �numberS s zloop_pos.numberc C s | j | j S )N)r r )r r r r �itemW s z loop_pos.itemc C s* y| j | jd S tk r$ d S X d S )Nr )r r � IndexError)r r r r r [ s zloop_pos.__next__r c C s | j dkrd S | j| j d S )Nr r )r r )r r r r �previouse s zloop_pos.previousc C s | j d S )N� )r )r r r r �oddk s z loop_pos.oddc C s | j d S )Nr" )r )r r r r �eveno s z loop_pos.evenc C s | j dkS )Nr )r )r r r r �firsts s zloop_pos.firstc C s | j t| j�d kS )Nr )r r r )r r r r �lastw s z loop_pos.lastc C s t | j�S )N)r r )r r r r �length{ s zloop_pos.lengthNc C s | j r dS | �| j| j|�S )a Returns true if this item is the start of a new group, where groups mean that some attribute has changed. The getter can be None (the item itself changes), an attribute name like ``'.attr'``, a function, or a dict key or list index. T)r% �_compare_groupr r! )r �getterr r r � first_group s zloop_pos.first_groupc C s | j r dS | �| j| j|�S )a Returns true if this item is the end of a new group, where groups mean that some attribute has changed. The getter can be None (the item itself changes), an attribute name like ``'.attr'``, a function, or a dict key or list index. T)r& r( r r )r r) r r r � last_group� s zloop_pos.last_groupc C s� |d kr||kS t |t�rt|�d�rt|dd � }|�d�r^|d d� }t||�� t||�� kS t||�t||�kS n*t|d�r�||�||�kS || || kS d S )N�.r z()����__call__)� isinstancer � startswith�endswith�getattr�hasattr)r r �otherr) r r r r( � s zloop_pos._compare_group)N)N)r r r r r r �propertyr r r r r r r! r# r$ r% r& r' r* r+ r( r r r r r E s6 r ) r r Ztempita.compat3r �__all__�objectr r r r r r r �<module> s
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