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Edit File: fixer_util.cpython-310.pyc
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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 terminated by getattr(x, attr) is None. Args: obj: the starting object attr: the name of the chaining attribute Yields: Each successive object in the chain. N)�getattr)r( r) �nextr r r � attr_chain� s � �r� zefor_stmt< 'for' any 'in' node=any ':' any* > | comp_for< 'for' any 'in' node=any any* > z� power< ( 'iter' | 'list' | 'tuple' | 'sorted' | 'set' | 'sum' | 'any' | 'all' | 'enumerate' | (any* trailer< '.' 'join' >) ) trailer< '(' node=any ')' > any* > z` power< ( 'sorted' | 'enumerate' ) trailer< '(' arglist<node=any any*> ')' > any* > Fc C sp t st�t�at�t�at�t�ada tttg}t|t| d��D ]\}}i }|�||�r5|d | u r5 dS q dS )a Returns true if node is in an environment where all that is required of it is being iterable (ie, it doesn't matter if it returns a list or an iterator). See test_map_nochange in test_fixers.py for some examples and tests. T�parentr7 F) � pats_builtr �compile_pattern�p0�p1�p2�zipr� �match)r7 �patterns�patternr� rq r r r �in_special_context� s �r� c C s� | j }|dur|jtjkrdS | j}|jtjtjfv r dS |jtjkr,|j d | u r,dS |jtj ksI|jtj krK|durB|jtj ksI|j d | u rKdS dS )zG Check that something isn't an attribute or function name etc. NFrm T) � prev_siblingrp r r0 r� r �funcdef�classdef� expr_stmtrg � parameters� typedargslistr, )r7 �prevr� r r r �is_probably_builtin� s r� c C sP | dur&| j tjkr t| j�dkr | jd }|j tjkr |jS | j} | dusdS )z Find the indentation of *node*.Nrw r r@ ) rp r �suiterx rg r �INDENTr r� )r7 �indentr r r �find_indentation s �r� c C s> | j tjkr| S | �� } | jd }| _ttj| g�}||_|S r} )rp r r� r1 r� r )r7 r� r� r r r � make_suite s r� c C s. | j tjkr| j} | std��| j tjks| S )z Find the top level namespace.z,root found before file_input node was found.)rp r � file_inputr� � ValueErrorry r r r � find_root& s �r� c C s t |t|�| �}t|�S )z� Returns true if name is imported from package at the top level of the tree which node belongs to. To cover the case of an import like 'import foo', use None for the package and 'foo' for the name. )� find_bindingr� �bool)�packager# r7 �bindingr r r �does_tree_import/ s r� c C s | j tjtjfv S )z0Returns true if the node is an import statement.)rp r � import_namerc ry r r r � is_import7 s r� c C s* dd� }t |�}t| ||�rdS d }}t|j�D ]!\}}||�s"qt|j|d� �D ] \}}||�s5 nq+|| } |dkrat|j�D ] \}}|jtjkr`|jr`|jd jtjkr`|d } nqD| du rxt tj t tj d�t tj |dd�g�} n t | t tj |dd�g�} | t� g} |�|t tj| �� dS ) z\ Works like `does_tree_import` but adds an import statement if it was not imported. c S s | j tjko| jot| jd �S )Nrm )rp r � simple_stmtrg r� ry r r r �is_import_stmt> s �z$touch_import.<locals>.is_import_stmtNrm r r` r r )r� r� r� rg rp r r� r rK r r� r r" ri r? r2 ) r� r# r7 r� �root� insert_pos�offset�idx�node2�import_rg r r r � touch_import; s: �� � r� c C s� |j D ]�}d}|jtjkr)t| |j d �r| S t| t|j d �|�}|r(|}n�|jtjtjfv rBt| t|j d �|�}|rA|}nw|jtj kr�t| t|j d �|�}|rX|}nat |j dd� �D ] \}}|jt j kr�|j dkr�t| t|j |d �|�}|r�|}qan6|jtv r�|j d j | kr�|}n&t|| |�r�|}n |jtjkr�t| ||�}n|jtjkr�t| |j d �r�|}|r�|s�| S t|�r�| S qdS ) z� Returns the node which binds variable name, otherwise None. 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