Edit File: associationproxy.cpython-37.pyc
B ��4]7� � @ s0 d Z ddlZddlmZ ddlmZ ddlmZ ddlmZ ddlmZ dd lmZ dd l m Z dd l m Z d d � Z e�d�ZG dd� dej�ZG dd� de�ZG dd� de�ZG dd� de�ZG dd� de e�ZG dd� de�ZG dd � d e�ZG d d � d e�Ze�d �ZG d d!� d!e�ZG d"d#� d#e�Z dS )$z�Contain the ``AssociationProxy`` class. The ``AssociationProxy`` is a Python property object which provides transparent proxied access to the endpoint of an association object. See the example ``examples/association/proxied_association.py``. � N� )�exc)�inspect)�orm)�util)� collections)� interfaces)�or_)�ColumnOperatorsc K s t | |f|�S )a� Return a Python property implementing a view of a target attribute which references an attribute on members of the target. The returned value is an instance of :class:`.AssociationProxy`. Implements a Python property representing a relationship as a collection of simpler values, or a scalar value. The proxied property will mimic the collection type of the target (list, dict or set), or, in the case of a one to one relationship, a simple scalar value. :param target_collection: Name of the attribute we'll proxy to. This attribute is typically mapped by :func:`~sqlalchemy.orm.relationship` to link to a target collection, but can also be a many-to-one or non-scalar relationship. :param attr: Attribute on the associated instance or instances we'll proxy for. For example, given a target collection of [obj1, obj2], a list created by this proxy property would look like [getattr(obj1, *attr*), getattr(obj2, *attr*)] If the relationship is one-to-one or otherwise uselist=False, then simply: getattr(obj, *attr*) :param creator: optional. When new items are added to this proxied collection, new instances of the class collected by the target collection will be created. For list and set collections, the target class constructor will be called with the 'value' for the new instance. For dict types, two arguments are passed: key and value. If you want to construct instances differently, supply a *creator* function that takes arguments as above and returns instances. For scalar relationships, creator() will be called if the target is None. If the target is present, set operations are proxied to setattr() on the associated object. If you have an associated object with multiple attributes, you may set up multiple association proxies mapping to different attributes. See the unit tests for examples, and for examples of how creator() functions can be used to construct the scalar relationship on-demand in this situation. :param \*\*kw: Passes along any other keyword arguments to :class:`.AssociationProxy`. )�AssociationProxy)�target_collection�attr�kw� r �R/opt/alt/python37/lib64/python3.7/site-packages/sqlalchemy/ext/associationproxy.py�association_proxy s 4r �ASSOCIATION_PROXYc @ sd e Zd ZdZdZeZddd�Zdd� Zd d � Z d d � Z dd d�Z dd� Z dd� Z dd� Zdd� ZdS )r zDA descriptor that presents a read/write view of an object attribute.TNFc C sR || _ || _|| _|| _|| _|| _|| _dt| �j|t | �f | _ |rN|| _ dS )a Construct a new :class:`.AssociationProxy`. The :func:`.association_proxy` function is provided as the usual entrypoint here, though :class:`.AssociationProxy` can be instantiated and/or subclassed directly. :param target_collection: Name of the collection we'll proxy to, usually created with :func:`.relationship`. :param attr: Attribute on the collected instances we'll proxy for. For example, given a target collection of [obj1, obj2], a list created by this proxy property would look like [getattr(obj1, attr), getattr(obj2, attr)] :param creator: Optional. When new items are added to this proxied collection, new instances of the class collected by the target collection will be created. For list and set collections, the target class constructor will be called with the 'value' for the new instance. For dict types, two arguments are passed: key and value. If you want to construct instances differently, supply a 'creator' function that takes arguments as above and returns instances. :param cascade_scalar_deletes: when True, indicates that setting the proxied value to ``None``, or deleting it via ``del``, should also remove the source object. Only applies to scalar attributes. Normally, removing the proxied target will not remove the proxy source, as this object may have other state that is still to be kept. .. versionadded:: 1.3 .. seealso:: :ref:`cascade_scalar_deletes` - complete usage example :param getset_factory: Optional. Proxied attribute access is automatically handled by routines that get and set values based on the `attr` argument for this proxy. If you would like to customize this behavior, you may supply a `getset_factory` callable that produces a tuple of `getter` and `setter` functions. The factory is called with two arguments, the abstract type of the underlying collection and this proxy instance. :param proxy_factory: Optional. The type of collection to emulate is determined by sniffing the target collection. If your collection type can't be determined by duck typing or you'd like to use a different collection implementation, you may supply a factory function to produce those collections. Only applicable to non-scalar relationships. :param proxy_bulk_set: Optional, use with proxy_factory. See the _set() method for details. :param info: optional, will be assigned to :attr:`.AssociationProxy.info` if present. .. versionadded:: 1.0.9 z _%s_%s_%sN) r � value_attr�creator�getset_factory� proxy_factory�proxy_bulk_set�cascade_scalar_deletes�type�__name__�id�key�info) �selfr r r r r r r r r r r �__init__c s IzAssociationProxy.__init__c C s* |d kr | S | � ||�}|r&|�|�S | S )N)� _as_instance�get)r �obj�class_�instr r r �__get__� s zAssociationProxy.__get__c C s t |�}| �||��||�S )N)r r �set)r r" �valuesr# r r r �__set__� s zAssociationProxy.__set__c C s t |�}| �||��|�S )N)r r �delete)r r" r# r r r � __delete__� s zAssociationProxy.__delete__c C s | � ||�S )a� Return the internal state local to a specific mapped class. E.g., given a class ``User``:: class User(Base): # ... keywords = association_proxy('kws', 'keyword') If we access this :class:`.AssociationProxy` from :attr:`.Mapper.all_orm_descriptors`, and we want to view the target class for this proxy as mapped by ``User``:: inspect(User).all_orm_descriptors["keywords"].for_class(User).target_class This returns an instance of :class:`.AssociationProxyInstance` that is specific to the ``User`` class. The :class:`.AssociationProxy` object remains agnostic of its parent class. :param class\_: the class that we are returning state for. :param obj: optional, an instance of the class that is required if the attribute refers to a polymorphic target, e.g. where we have to look at the type of the actual destination object to get the complete path. .. versionadded:: 1.3 - :class:`.AssociationProxy` no longer stores any state specific to a particular parent class; the state is now stored in per-class :class:`.AssociationProxyInstance` objects. )r )r r# r" r r r � for_class� s !zAssociationProxy.for_classc C s� y|j | jd }W nL tk r` | �|�}|d k rXt�| ||�}t|| jd |� nd }Y nX |d k rz|jsz|�|�S |S d S )N�_inst) �__dict__r �KeyError� _calc_owner�AssociationProxyInstance� for_proxy�setattr� _is_canonical� _non_canonical_get_for_object)r r# r" r$ �ownerr r r r � s z AssociationProxy._as_instancec C s2 y t |�}W n tjk r" d S X |jjjS d S )N)r r �NoInspectionAvailable�mapperZ class_managerr# )r Z target_cls�inspr r r r/ s z AssociationProxy._calc_ownerc sF | j �t���� � fdd�}|tkr2�fdd�}n �fdd�}||fS )Nc s | d k r� | �S d S )Nr )�target)�_getterr r �getter s z0AssociationProxy._default_getset.<locals>.getterc s t | � |� d S )N)r2 )�o�k�v)r r r �setter s z0AssociationProxy._default_getset.<locals>.setterc s t | � |� d S )N)r2 )r< r> )r r r r? % s )r �operator� attrgetter�dict)r �collection_classr; r? r )r: r r �_default_getset s z AssociationProxy._default_getsetc C s d| j | jf S )NzAssociationProxy(%r, %r))r r )r r r r �__repr__* s zAssociationProxy.__repr__)NNNNNF)N)r � __module__� __qualname__�__doc__Z is_attributer Zextension_typer r% r( r* r+ r r/ rD rE r r r r r ] s" P #r c @ s e Zd ZdZdd� ZdZedd� �Zedd� �Zd d � Z e d d � �Z ed d� �Z e jdd� �Ze dd� �Ze dd� �Ze dd� �Ze jdd� �Ze jdd� �Ze dd � �Zd d � Zd d � Ze d!d"� �Zd#d$� Zd%d&� Zd'd(� Zd)d*� Z d+d,� Z d-d.� Z d7d/d0�Z d8d1d2�Z d9d3d4�Z!d5d6� Z"dS ):r0 a� A per-class object that serves class- and object-specific results. This is used by :class:`.AssociationProxy` when it is invoked in terms of a specific class or instance of a class, i.e. when it is used as a regular Python descriptor. When referring to the :class:`.AssociationProxy` as a normal Python descriptor, the :class:`.AssociationProxyInstance` is the object that actually serves the information. Under normal circumstances, its presence is transparent:: >>> User.keywords.scalar False In the special case that the :class:`.AssociationProxy` object is being accessed directly, in order to get an explicit handle to the :class:`.AssociationProxyInstance`, use the :meth:`.AssociationProxy.for_class` method:: proxy_state = inspect(User).all_orm_descriptors["keywords"].for_class(User) # view if proxy object is scalar or not >>> proxy_state.scalar False .. versionadded:: 1.3 c C s2 || _ |j| _|| _|j| _d | _|| _|| _d S )N)�parentr � owning_classr rC � target_classr )r rI rJ rK r r r r r O s z!AssociationProxyInstance.__init__Nc C s~ |j }|j}t�|��|�}t|tj�s0td��|jj }y| � ||�}W n t k rf t ||||�S X | � |||||�S d S )NzEassociation proxy to a non-relationship intermediary is not supported)r r r � class_mapper� get_property� isinstanceZRelationshipProperty�NotImplementedErrorr7 r# � _cls_unwrap_target_assoc_proxy�AttributeError�!AmbiguousAssociationProxyInstance�_construct_for_assoc) �clsrI rJ �parent_instancer r �proprK � target_assocr r r r1 a s z"AssociationProxyInstance.for_proxyc C sb |d k rt ||||�S t||�}t|d�s8t||||�S |j}|rPt ||||�S t||||�S d S )NZ_is_internal_proxy)� ObjectAssociationProxyInstance�getattr�hasattrrR Z_impl_uses_objects� ColumnAssociationProxyInstance)rT rW rI rJ rK r r Z is_objectr r r rS � s z-AssociationProxyInstance._construct_for_assocc C s t �| j��| j�S )N)r rL rJ rM r )r r r r � _get_property� s z&AssociationProxyInstance._get_propertyc C s | � � jS )N)r\ Z comparator)r r r r � _comparator� s z$AssociationProxyInstance._comparatorc C s t ||�}t|ttf�r |S d S )N)rY rN r r0 )rT rK r r r r r rP � s z7AssociationProxyInstance._cls_unwrap_target_assoc_proxyc C s | � | j| j�S )N)rP rK r )r r r r �_unwrap_target_assoc_proxy� s z3AssociationProxyInstance._unwrap_target_assoc_proxyc C s t | j| j�S )z�The 'remote' class attribute referenced by this :class:`.AssociationProxyInstance`. .. seealso:: :attr:`.AssociationProxyInstance.attr` :attr:`.AssociationProxyInstance.local_attr` )rY rK r )r r r r � remote_attr� s z$AssociationProxyInstance.remote_attrc C s t | j| j�S )z�The 'local' class attribute referenced by this :class:`.AssociationProxyInstance`. .. seealso:: :attr:`.AssociationProxyInstance.attr` :attr:`.AssociationProxyInstance.remote_attr` )rY rJ r )r r r r � local_attr� s z#AssociationProxyInstance.local_attrc C s | j | jfS )az Return a tuple of ``(local_attr, remote_attr)``. This attribute is convenient when specifying a join using :meth:`.Query.join` across two relationships:: sess.query(Parent).join(*Parent.proxied.attr) .. seealso:: :attr:`.AssociationProxyInstance.local_attr` :attr:`.AssociationProxyInstance.remote_attr` )r` r_ )r r r r r � s z AssociationProxyInstance.attrc C s | � � j }|r| �� |S )zsReturn ``True`` if this :class:`.AssociationProxyInstance` proxies a scalar relationship on the local side.)r\ �uselist� _initialize_scalar_accessors)r �scalarr r r rc � s z AssociationProxyInstance.scalarc C s | � � j�| j�j S )N)r\ r7 rM r ra )r r r r �_value_is_scalar� s z)AssociationProxyInstance._value_is_scalarc C s t � �d S )N)rO )r r r r �_target_is_object� s z*AssociationProxyInstance._target_is_objectc C s> | j jr | j �d | �\}}n| j �d �\}}|| | _| _d S )N)rI r rD � _scalar_get� _scalar_set)r r! �set_r r r rb � s z5AssociationProxyInstance._initialize_scalar_accessorsc sF | j �t���� � fdd�}|tkr2�fdd�}n �fdd�}||fS )Nc s | d k r� | �S d S )Nr )r9 )r: r r r; � s z8AssociationProxyInstance._default_getset.<locals>.getterc s t | � |�S )N)r2 )r< r= r> )r r r r? s z8AssociationProxyInstance._default_getset.<locals>.setterc s t | � |�S )N)r2 )r< r> )r r r r? s )r r@ rA rB )r rC r; r? r )r: r r rD � s z(AssociationProxyInstance._default_getsetc C s | j jS )N)rI r )r r r r r s z AssociationProxyInstance.infoc C s� |d kr | S | j r(t|| j�}| �|�S yt|| j�\}}}W n tk rR Y n,X t|�|kr~t| �|kr~| jd k szt�|S | � t || j��\| _}t || jt|�t| �|f� |S d S )N) rc rY r rf r rQ r rC �AssertionError�_new�_lazy_collectionr2 )r r" r9 Z creator_idZself_id�proxyr r r r! s z AssociationProxyInstance.getc C s� | j r|| jjr| jjn| j}t|| j�}|d krP|d kr<d S t|| j||�� q�| �||� |d kr�| jjr�t|| jd � n,| � |�}| j d k s�t �||k r�|� | |� d S )N) rc rI r rK rY r r2 rg r r! rC ri � _bulk_replace)r r" r' r r9 rl r r r r& ) s z AssociationProxyInstance.setc C sL | j d kr| �|d � | jr<t|| j�}|d k r<t|| j� t|| j� d S )N)rJ r/ rc rY r �delattrr )r r" r9 r r r r) ? s z AssociationProxyInstance.deletec C s� | j jr| j jn| j}t�|� �}| j jrB|| j �||| j| �fS | j jr^| j �|| �\}}n| j �|�\}}|t kr�|t ||||| �fS |t kr�|t ||||| �fS |t kr�|t||||| �fS t�d| jj| jf ��d S )Nz�could not guess which interface to use for collection_class "%s" backing "%s"; specify a proxy_factory and proxy_bulk_set manually)rI r rK r Zduck_type_collectionr r r rD �list�_AssociationListrB �_AssociationDictr& �_AssociationSetr � ArgumentErrorrC r r )r �lazy_collectionr rC r; r? r r r rj I s0 z AssociationProxyInstance._newc C sh | j jr| j �||� nL| jtkr.|�|� n6| jtkrD|�|� n | jtkrZ|�|� n t� d��d S )NzEno proxy_bulk_set supplied for custom collection_class implementation) rI r rC ro �extendrB �updater& r rs )r rl r' r r r �_sety s z AssociationProxyInstance._setc C s\ | j jr| j jp| j}| j jr4| j �| j| �\}}n| j �| j�\}}||_||_||_d S )N)rI r rK r rC rD r; r? )r rl r r; r? r r r �_inflate� s z!AssociationProxyInstance._inflatec K s� |� dd �}| j}|d k r:|jf d|i|��}| j�|�S | jr^t| j| j�}|j|f|�}n*|rnt� d��n|r�|d k r�t� d��|}| j�|�S )N�is_has� criterionzJCan't apply keyword arguments to column-targeted association proxy; use ==zINon-empty has() not allowed for column-targeted association proxy; use ==) �popr^ �_criterion_existsr] re rY rK r r rs )r rz �kwargsry rW �innerrV Z value_exprr r r r| � s" z*AssociationProxyInstance._criterion_existsc K s< | j dkr&| jr&| jr | jr&t�d��| jf |dd�|��S )a! Produce a proxied 'any' expression using EXISTS. This expression will be a composed product using the :meth:`.RelationshipProperty.Comparator.any` and/or :meth:`.RelationshipProperty.Comparator.has` operators of the underlying proxied attributes. Nz9'any()' not implemented for scalar attributes. Use has().F)rz ry )r^ rc re rd r �InvalidRequestErrorr| )r rz r} r r r �any� s z AssociationProxyInstance.anyc K s< | j dkr&| jr | jr&| js&t�d��| jf |dd�|��S )a! Produce a proxied 'has' expression using EXISTS. This expression will be a composed product using the :meth:`.RelationshipProperty.Comparator.any` and/or :meth:`.RelationshipProperty.Comparator.has` operators of the underlying proxied attributes. Nz4'has()' not implemented for collections. Use any().T)rz ry )r^ rc re rd r r r| )r rz r} r r r �has� s z AssociationProxyInstance.hasc C s d| j j| jf S )Nz%s(%r))� __class__r rI )r r r r rE � s z!AssociationProxyInstance.__repr__)N)N)N)#r rF rG rH r rK � classmethodr1 rS r\ �propertyr] rP r �memoized_propertyr^ r_ r` r rc rd re rb rD r r! r& r) rj rw rx r| r� r� rE r r r r r0 1 s8 0 r0 c sn e Zd ZdZdZdd� Z� fdd�Zdd� Zd d � Zdd d �Z ddd�Z e j dd� �Z dd� Zdd� Z� ZS )rR zcan :class:`.AssociationProxyInstance` where we cannot determine the type of target object. Fc C s" t d| jj| j| j| jf ��d S )Nz�Association proxy %s.%s refers to an attribute '%s' that is not directly mapped on class %s; therefore this operation cannot proceed since we don't know what type of object is referred towards)rQ rJ r r r rK )r r r r � _ambiguous� s z,AmbiguousAssociationProxyInstance._ambiguousc s |d kr | S t t| ��|�S d S )N)�superrR r! )r r" )r� r r r! � s z%AmbiguousAssociationProxyInstance.getc C s | � � d S )N)r� )r r" r r r �__eq__� s z(AmbiguousAssociationProxyInstance.__eq__c C s | � � d S )N)r� )r r" r r r �__ne__� s z(AmbiguousAssociationProxyInstance.__ne__Nc K s | � � d S )N)r� )r rz r} r r r r� s z%AmbiguousAssociationProxyInstance.anyc K s | � � d S )N)r� )r rz r} r r r r� s z%AmbiguousAssociationProxyInstance.hasc C s i S )Nr )r r r r � _lookup_cache s z/AmbiguousAssociationProxyInstance._lookup_cachec C s� |d k r�t || j�}|d k r�y t|�}W n tjk r> Y nDX |j}|j}|| jkrb| �||� y | j| S t k r� Y nX | S )N) rY r r r r6 r7 r# r� �_populate_cacher. )r rU Z actual_objr8 r7 �instance_classr r r r4 s z?AmbiguousAssociationProxyInstance._non_canonical_get_for_objectc C sn t �| j��| j�}|�|j�rj|}y| �|| j�}W n t k rJ Y n X | � || j | j|| j�| j |< d S )N) r rL rJ rM r Zisar7 rP r rQ rS rI r� )r r� r7 rV rK rW r r r r� & s z1AmbiguousAssociationProxyInstance._populate_cache)N)N)r rF rG rH r3 r� r! r� r� r� r� r r� r� r4 r� � __classcell__r r )r� r rR � s rR c @ s0 e Zd ZdZdZdZdd� Zdd� Zdd� Zd S ) rX zJan :class:`.AssociationProxyInstance` that has an object as a target. Tc C s� | j }|dk r.| j�|js$|�|�n||k�S | jr\| jr\| js\| j�t| j | j ��|��S | jrz| jrz| jrzt � d��n| jjf | j |i�S dS )ab Produce a proxied 'contains' expression using EXISTS. This expression will be a composed product using the :meth:`.RelationshipProperty.Comparator.any` , :meth:`.RelationshipProperty.Comparator.has`, and/or :meth:`.RelationshipProperty.Comparator.contains` operators of the underlying proxied attributes. Nz<contains() doesn't apply to a scalar object endpoint; use ==) r^ r] r| rc �containsre rd r� rY rK r r r )r r" rW r r r r� D s z'ObjectAssociationProxyInstance.containsc C s@ |d kr(t | jjf | j|i�| jd k�S | jjf | j|i�S d S )N)r r] r� r )r r" r r r r� e s z%ObjectAssociationProxyInstance.__eq__c C s | j �t| j| j�|k�S )N)r] r� rY rK r )r r" r r r r� p s z%ObjectAssociationProxyInstance.__ne__N) r rF rG rH re r3 r� r� r� r r r r rX = s ! rX c @ s( e Zd ZdZdZdZdd� Zdd� ZdS ) r[ zVan :class:`.AssociationProxyInstance` that has a database column as a target. FTc C s6 | � | j�tj|��}|d kr.t|| jd k�S |S d S )N)r| r_ �operater@ �eqr r] )r �other�exprr r r r� � s z%ColumnAssociationProxyInstance.__eq__c O s | � | jj|f|�|��S )N)r| r_ r� )r �opr� r} r r r r� � s z&ColumnAssociationProxyInstance.operateN)r rF rG rH re r3 r� r� r r r r r[ x s r[ c @ s, e Zd Zdd� Zdd� Zdd� Zdd� Zd S ) rk c C s || _ || _d S )N)rI r9 )r r" r9 r r r r � s z_lazy_collection.__init__c C s t | j| j�S )N)rY rI r9 )r r r r �__call__� s z_lazy_collection.__call__c C s | j | jd�S )N)r" r9 )rI r9 )r r r r � __getstate__� s z _lazy_collection.__getstate__c C s |d | _ |d | _d S )Nr" r9 )rI r9 )r �stater r r � __setstate__� s z _lazy_collection.__setstate__N)r rF rG r r� r� r� r r r r rk � s rk c @ sL e Zd Zdd� Zedd� �Zdd� Zdd� ZeZd d � Z d d � Z d d� Z dS )�_AssociationCollectionc C s" || _ || _|| _|| _|| _dS )a� Constructs an _AssociationCollection. This will always be a subclass of either _AssociationList, _AssociationSet, or _AssociationDict. lazy_collection A callable returning a list-based collection of entities (usually an object attribute managed by a SQLAlchemy relationship()) creator A function that creates new target entities. Given one parameter: value. This assertion is assumed:: obj = creator(somevalue) assert getter(obj) == somevalue getter A function. Given an associated object, return the 'value'. setter A function. Given an associated object and a value, store that value on the object. N)rt r r; r? rI )r rt r r; r? rI r r r r � s z _AssociationCollection.__init__c C s | � � S )N)rt )r r r r �<lambda>� � z _AssociationCollection.<lambda>c C s t | j�S )N)�len�col)r r r r �__len__� s z _AssociationCollection.__len__c C s t | j�S )N)�boolr� )r r r r �__bool__� s z _AssociationCollection.__bool__c C s | j | jd�S )N)rI rt )rI rt )r r r r r� � s z#_AssociationCollection.__getstate__c C s$ |d | _ |d | _| j �| � d S )NrI rt )rI rt rx )r r� r r r r� � s z#_AssociationCollection.__setstate__c C s | � � |�| |� d S )N)�clearrw )r � assoc_proxyr' r r r rm � s z$_AssociationCollection._bulk_replaceN) r rF rG r r� r� r� r� � __nonzero__r� r� rm r r r r r� � s r� c @ s� e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� Zdd� Zd d � Zd d � ZdLd!d"�Zd#d$� Zd%d&� Zd'd(� Zd)d*� Zd+d,� Zd-d.� Zd/d0� Zd1d2� Zd3d4� Z d5d6� Z d7d8� Z d9d:� Z d;d<� Z d=d>� Z!e!Z"d?d@� Z#dAdB� Z$dCdD� Z%dEdF� Z&dGdH� Z'dIdJ� Z(xVe)e*� �+� �D ]D\Z,Z-e.�/e-��rBe-j e,k�rBe-j�sBe0e)e,��rBe1e)e,�je-_�qBW [,[-dKS )Mrp z(Generic, converting, list-to-list proxy.c C s | � |�S )N)r )r �valuer r r �_create� s z_AssociationList._createc C s | � |�S )N)r; )r �object_r r r �_get� s z_AssociationList._getc C s | � ||�S )N)r? )r r� r� r r r rw � s z_AssociationList._setc s6 t |t�s� �� j| �S � fdd�� j| D �S d S )Nc s g | ]}� � |��qS r )r� )�.0�member)r r r � <listcomp>� s z0_AssociationList.__getitem__.<locals>.<listcomp>)rN �slicer� r� )r �indexr )r r � __getitem__� s z _AssociationList.__getitem__c C s t |t�s | �| j| |� n�|jd kr2t| �}n |jdk rLt| �|j }n|j}|jpZd}|jpdd}tt |jprd||��}|dkr�x|D ] }| |= q�W |}xt|D ]}| � ||� |d7 }q�W nRt|�t|�kr�t dt|�t|�f ��x(t ||�D ]\}}| �| j| |� q�W d S )Nr � zBattempt to assign sequence of size %s to extended slice of size %s) rN r� rw r� �stopr� �step�startro �range�insert� ValueError�zip) r r� r� r� r� r� �rng�i�itemr r r � __setitem__� s. z _AssociationList.__setitem__c C s | j |= d S )N)r� )r r� r r r � __delitem__ s z _AssociationList.__delitem__c C s& x | j D ]}| �|�|krdS qW dS )NTF)r� r� )r r� r� r r r � __contains__ s z _AssociationList.__contains__c s � fdd�� j ||� D �S )Nc s g | ]}� � |��qS r )r� )r� r� )r r r r� s z1_AssociationList.__getslice__.<locals>.<listcomp>)r� )r r� �endr )r r � __getslice__ s z _AssociationList.__getslice__c s$ � fdd�|D �}|� j ||�< d S )Nc s g | ]}� � |��qS r )r� )r� r> )r r r r� s z1_AssociationList.__setslice__.<locals>.<listcomp>)r� )r r� r� r' �membersr )r r � __setslice__ s z _AssociationList.__setslice__c C s | j ||�= d S )N)r� )r r� r� r r r � __delslice__ s z _AssociationList.__delslice__c c s x| j D ]}| �|�V qW dS )z�Iterate over proxied values. 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)r r� r r� r r r rw � s z_AssociationDict._setc C s | � | j| �S )N)r� r� )r r r r r r� � s z _AssociationDict.__getitem__c C s6 || j kr | �| j | ||� n| �||�| j |< d S )N)r� rw r� )r r r� r r r r� � s z _AssociationDict.__setitem__c C s | j |= d S )N)r� )r r r r r r� � s z _AssociationDict.__delitem__c C s || j kS )N)r� )r r r r r r� � s z _AssociationDict.__contains__c C s || j kS )N)r� )r r r r r �has_key� s z_AssociationDict.has_keyc C s t | j�� �S )N)r� r� �keys)r r r r r� � s z_AssociationDict.__iter__c C s | j �� d S )N)r� r� )r r r r r� � s z_AssociationDict.clearc C s t | �|kS )N)rB )r r� r r r r� � s z_AssociationDict.__eq__c C s t | �|kS )N)rB )r r� r r r r� � s z_AssociationDict.__ne__c C s t | �|k S )N)rB )r r� r r r r� � s z_AssociationDict.__lt__c C s t | �|kS )N)rB )r r� r r r r� � s z_AssociationDict.__le__c C s t | �|kS )N)rB )r r� r r r r� � s z_AssociationDict.__gt__c C s t | �|kS )N)rB )r r� r r r r� � s z_AssociationDict.__ge__c C s t �t| �|�S )N)r r� rB )r r� r r r r� � s z_AssociationDict.__cmp__c C s t t| �� ��S )N)r� rB r� )r r r r rE � s z_AssociationDict.__repr__Nc C s" y| | S t k r |S X d S )N)r. )r r �defaultr r r r! � s z_AssociationDict.getc C s, || j kr | �||�| j |< |S | | S d S )N)r� r� )r r r� r r r � setdefault� s z_AssociationDict.setdefaultc C s | j �� S )N)r� r� )r r r r r� � s z_AssociationDict.keysc s � fdd�� j D �S )Nc 3 s" | ]}|� � � j| �fV qd S )N)r� r� )r� r )r r r � <genexpr>� s z-_AssociationDict.iteritems.<locals>.<genexpr>)r� )r r )r r � iteritems� s z_AssociationDict.iteritemsc s � fdd�� j D �S )Nc 3 s | ]}� � � j| �V qd S )N)r� r� )r� r )r r r r� � s z._AssociationDict.itervalues.<locals>.<genexpr>)r� )r r )r r � itervalues� s z_AssociationDict.itervaluesc C s | j �� S )N)r� �iterkeys)r r r r r� s z_AssociationDict.iterkeysc s � fdd�� j �� D �S )Nc s g | ]}� � |��qS r )r� )r� r� )r r r r� s z+_AssociationDict.values.<locals>.<listcomp>)r� r' )r r )r r r' s z_AssociationDict.valuesc s � fdd�� D �S )Nc s g | ]}|� � � j| �f�qS r )r� r� )r� r= )r r r r� s z*_AssociationDict.items.<locals>.<listcomp>r )r r )r r r� s z_AssociationDict.itemsc s � fdd�� j D �S )Nc 3 s" | ]}|� � � j| �fV qd S )N)r� r� )r� r )r r r r� s z)_AssociationDict.items.<locals>.<genexpr>)r� )r r )r r r� s c s � fdd�� j D �S )Nc 3 s | ]}� � � j| �V qd S )N)r� r� )r� r )r r r r� s z*_AssociationDict.values.<locals>.<genexpr>)r� )r r )r r r' s c C s. |t kr| j�|�}n| j�||�}| �|�S )N)r� r� r{ r� )r r r� r� r r r r{ s z_AssociationDict.popc C s | j �� }|d | �|d �fS )Nr r� )r� �popitemr� )r r� r r r r� s z_AssociationDict.popitemc O s� t |�dkr tdt |� ��nvt |�dkr�|d }t|d�rXxV|D ]}|| | |< qBW n<y x|D ]\}}|| |< q`W W n tk r� td��Y nX x|D ]\}}|| |< q�W d S )Nr� z+update expected at most 1 arguments, got %ir r� z4dictionary update sequence requires 2-element tuples)r� r� rZ r� ) r �ar Z seq_or_mapr� r= r> r r� r r r rv s z_AssociationDict.updatec C s� t | �}|�|pd�}t |p d��|�}|�|�}x:|�� p>dD ]*\}}||krZ|| |< q@||kr@|| |< q@W x|D ] }| |= qtW d S )Nr )r& � intersection� differencer� ) r r� r' �existing� constants� additions�removalsr r� r r r rm 7 s z _AssociationDict._bulk_replacec C s t | �� �S )N)rB r� )r r r r r� F s z_AssociationDict.copyc C s t dt| �j ��d S )Nz%s objects are unhashable)r� r r )r r r r r� I s z_AssociationDict.__hash__)N)N)/r rF rG rH r� r� rw r� r� r� r� r� r� r� r� r� r� r� r� r� r� rE r! r� r� r Zpy2kr� r� r� r' r� r� r{ r� rv rm r� r� ro r� r� r� r� rZ rB rY r r r r rq � sV rq c @ s� e Zd ZdZdd� Zdd� Zdd� Zdd � ZeZd d � Z d d � Z dd� Z dd� Z dd� Z dd� Zdd� Zdd� Zdd� Zd d � Zd d � ZeZd d!� ZeZd"d#� Zd$d%� Zd&d'� ZeZd(d)� Zd*d+� Z d,d-� Z e Z d.d/� Z d0d1� Z d2d3� Z!d4d5� Z"d6d7� Z#d8d9� Z$d:d;� Z%d<d=� Z&d>d?� Z'd@dA� Z(dBdC� Z)dDdE� Z*dFdG� Z+dHdI� Z,xVe-e.� �/� �D ]D\Z0Z1e2�3e1��rPe1j e0k�rPe1j�sPe4e5e0��rPe6e5e0�je1_�qPW [0[1dJS )Krr z&Generic, converting, set-to-set proxy.c C s | � |�S )N)r )r r� r r r r� Z s z_AssociationSet._createc C s | � |�S )N)r; )r r� r r r r� ] s z_AssociationSet._getc C s t | j�S )N)r� r� )r r r r r� ` s z_AssociationSet.__len__c C s | j r dS dS d S )NTF)r� )r r r r r� c s z_AssociationSet.__bool__c C s& x | j D ]}| �|�|krdS qW dS )NTF)r� r� )r r� r� r r r r� k s z _AssociationSet.__contains__c c s x| j D ]}| �|�V qW dS )z�Iterate over proxied values. 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N)r� r� )r r� r r r r� r s z_AssociationSet.__iter__c C s || kr| j �| �|�� d S )N)r� �addr� )r r� r r r r� } s z_AssociationSet.addc C s0 x*| j D ] }| �|�|kr| j �|� P qW d S )N)r� r� �discard)r r� r� r r r r� � s z_AssociationSet.discardc C s: x,| j D ]"}| �|�|kr| j �|� d S qW t|��d S )N)r� r� r� r. )r r� r� r r r r� � s z_AssociationSet.removec C s" | j std��| j �� }| �|�S )Nzpop from an empty set)r� r. r{ r� )r r� r r r r{ � s z_AssociationSet.popc C s x|D ]}| � |� qW d S )N)r� )r r� r� r r r rv � s z_AssociationSet.updatec C s� t | �}|�|pd�}t |p d��|�}|�|�}| j}| j}x2|pFdD ]&} | |kr^|| � qH| |krH|| � qHW x|D ] } || � qxW d S )Nr )r& r� r� r� r� ) r r� r' r� r� r� r� ZappenderZremoverr� r r r rm � s z _AssociationSet._bulk_replacec C s, t �| |�stS x|D ]}| �|� qW | S )N)r �_set_binops_check_strictr� r� )r r� r� r r r �__ior__� s z_AssociationSet.__ior__c C s t t| ��S )N)r& r� )r r r r rw � s z_AssociationSet._setc C s t | ��|�S )N)r& �union)r r� r r r r� � s z_AssociationSet.unionc C s t | ��|�S )N)r& r� )r r� r r r r� � s z_AssociationSet.differencec C s x|D ]}| � |� qW d S )N)r� )r r� r� r r r �difference_update� s z!_AssociationSet.difference_updatec C s, t �| |�stS x|D ]}| �|� qW | S )N)r r� r� r� )r r� r� r r r �__isub__� s z_AssociationSet.__isub__c C s t | ��|�S )N)r& r� )r r� r r r r� � s z _AssociationSet.intersectionc C sZ | � |�t| � }}|| || }}x|D ]}| �|� q,W x|D ]}| �|� qDW d S )N)r� r& r� r� )r r� �want�haver� r� r� r r r �intersection_update� s z#_AssociationSet.intersection_updatec C sj t �| |�stS | �|�t| � }}|| || }}x|D ]}| �|� q<W x|D ]}| �|� qTW | S )N)r r� r� r� r& r� r� )r r� r� r� r� r� r� r r r �__iand__� s z_AssociationSet.__iand__c C s t | ��|�S )N)r& �symmetric_difference)r r� r r r r � s z$_AssociationSet.symmetric_differencec C sZ | � |�t| � }}|| || }}x|D ]}| �|� q,W x|D ]}| �|� qDW d S )N)r r& r� r� )r r� r� r� r� r� r� r r r �symmetric_difference_update� s z+_AssociationSet.symmetric_difference_updatec C sj t �| |�stS | �|�t| � }}|| || }}x|D ]}| �|� q<W x|D ]}| �|� qTW | S )N)r r� r� r r& r� r� )r r� r� r� r� r� r� r r r �__ixor__� s z_AssociationSet.__ixor__c C s t | ��|�S )N)r& �issubset)r r� r r r r s z_AssociationSet.issubsetc C s t | ��|�S )N)r& � issuperset)r r� r r r r s z_AssociationSet.issupersetc C s | j �� d S )N)r� r� )r r r r r� s z_AssociationSet.clearc C s t | �S )N)r& )r r r r r� s z_AssociationSet.copyc C s t | �|kS )N)r& )r r� r r r r� s z_AssociationSet.__eq__c C s t | �|kS )N)r& )r r� r r r r� s z_AssociationSet.__ne__c C s t | �|k S )N)r& )r r� r r r r� s z_AssociationSet.__lt__c C s t | �|kS )N)r& )r r� r r r r� s z_AssociationSet.__le__c C s t | �|kS )N)r& )r r� r r r r� s z_AssociationSet.__gt__c C s t | �|kS )N)r& )r r� r r r r� s z_AssociationSet.__ge__c C s t t| ��S )N)r� r& )r r r r rE ! s z_AssociationSet.__repr__c C s t dt| �j ��d S )Nz%s objects are unhashable)r� r r )r r r r r� $ s z_AssociationSet.__hash__N)7r rF rG rH r� r� r� r� r� r� r� r� r� r� r{ rv rm r� rw r� �__or__r� �__sub__r� r� r� �__and__r r r �__xor__r r r r r� r� r� r� r� r� r� r� rE r� ro r� r� r� r� r r� rZ r& rY r r r r rr W sb rr ) rH r@ � r r r r r r Zsqlr Z sql.operatorsr r �symbolr ZInspectionAttrInfor �objectr0 rR rX r[ rk r� rp r� rq rr r r r r �<module> s: 7 U 3\; 7 P -