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Nc K s t | ��|� d S rA )�vars�update)r% ro r r r rZ � s z#DistributionFinder.Context.__init__c C s t | ��dtj�S )z� The path that a distribution finder should search. Typically refers to Python package paths and defaults to ``sys.path``. r` )r� �getrw r` r? r r r r` � s z DistributionFinder.Context.path)r r r r r0 rZ rE r` r r r r rc s rc c C s dS )z� Find distributions. Return an iterable of all Distribution instances capable of loading the metadata for packages matching the ``context``, a DistributionFinder.Context instance. Nr )r% rg r r r ru � s z%DistributionFinder.find_distributionsN)r r r r rc r� r� ru r r r r r z s r c @ s@ e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dS )�FastPathzF Micro-optimized class for searching a path for children. c C s || _ tj�| j ��� | _d S rA )r~ �osr` �basename�lower�base)r% r~ r r r rZ � s zFastPath.__init__c C s t �| j|�S rA )rr rs r~ )r% �childr r r �joinpath� s zFastPath.joinpathc C sl t t�� t�| jpd�W d � S 1 s.0 Y t t�� | �� W d � S 1 s^0 Y g S )Nr )r � Exceptionr� �listdirr~ � zip_childrenr? r r r �children� s . &zFastPath.childrenc C s2 t �| j�}|j�� }|j| _t�dd� |D ��S )Nc s s | ]}|� tjd �d V qdS )r� r N)r! � posixpathr� )r/ r� r r r ri � s �z(FastPath.zip_children.<locals>.<genexpr>)r} rs r~ Znamelistr� �dict�fromkeys)r% Zzip_path�namesr r r r� � s �zFastPath.zip_childrenc C s& | j }||jkp$|�|j�o$|�d�S )N�.egg)r� �versionless_egg_name� startswith�prefix�endswith)r% �searchr� r r r �is_egg� s �zFastPath.is_eggc c sZ | � � D ]L}|�� }||jv sH|�|j�r6|�|j�sH| �|�r|dkr| �|�V qd S )Nzegg-info) r� r� � exact_matchesr� r� r� �suffixesr� r� )r% r0 r� Zn_lowr r r r� � s � ���zFastPath.searchN) r r r r rZ r� r� r� r� r� r r r r r� � s r� c @ s6 e Zd ZdZdZdZdZdgdd� ZdZdd� Z dS )�PreparedzE A prepared search for metadata on a possibly-named package. r )z .dist-infoz .egg-infoNr c sV |� _ |d u rd S |�� �dd�� _� jd � _� fdd�� jD �� _� jd � _d S )N�-rY c s g | ]}� j | �qS r )� normalized)r/ �suffixr? r r r4 � s z%Prepared.__init__.<locals>.<listcomp>r� )r0 r� �replacer� r� r� r� r� )r% r0 r r? r rZ � s �zPrepared.__init__) r r r r r� r� r� r� r� rZ r r r r r� � s r� c @ s, e Zd Zee�� fdd��Zedd� �ZdS )�MetadataPathFinderc C s | � |j|j�}tt|�S )a Find distributions. Return an iterable of all Distribution instances capable of loading the metadata for packages matching ``context.name`` (or all names if ``None`` indicated) along the paths in the list of directories ``context.path``. )� _search_pathsr0 r` r� rq )r2 rg �foundr r r ru � s z%MetadataPathFinder.find_distributionsc s t j�� fdd�tt|�D ��S )z1Find metadata directories in paths heuristically.c 3 s | ]}|� t� ��V qd S rA )r� r� )r/ r` ra r r ri � s �z3MetadataPathFinder._search_paths.<locals>.<genexpr>)rl rm rn r� r� )r2 r0 �pathsr ra r r� � s �z MetadataPathFinder._search_pathsN)r r r rF r rc ru r� r r r r r� � s r� c @ s. e Zd Zdd� Zdd� Zejje_dd� ZdS )rq c C s || _ dS )z�Construct a distribution from a path to the metadata directory. :param path: A pathlib.Path or similar object supporting .joinpath(), __div__, .parent, and .read_text(). N)�_pathr_ r r r rZ s zPathDistribution.__init__c C sH t ttttt��$ | j�|�jdd�W d � S 1 s:0 Y d S )NrH rI ) r �FileNotFoundError�IsADirectoryError�KeyError�NotADirectoryError�PermissionErrorr� r� rP r] r r r rP s �zPathDistribution.read_textc C s | j j| S rA )r� �parentr_ r r r rT s z PathDistribution.locate_fileN)r r r rZ rP r r rT r r r r rq s rq c C s t �| �S )z�Get the ``Distribution`` instance for the named package. :param distribution_name: The name of the distribution package as a string. :return: A ``Distribution`` instance (or subclass thereof). )r rf �Zdistribution_namer r r r s r c K s t jf i | ��S )z|Get all ``Distribution`` instances in the current environment. :return: An iterable of ``Distribution`` instances. )r rp )ro r r r r ! s r c C s t �| �jS )z�Get the metadata for the named package. :param distribution_name: The name of the distribution package to query. :return: An email.Message containing the parsed metadata. )r rf r r� r r r r ) s r c C s t | �jS )z�Get the version string for the named package. :param distribution_name: The name of the distribution package to query. :return: The version string for the package as defined in the package's "Version" metadata key. )r r r� r r r r 2 s r c C sH t j�dd� t� D ��} t�d�}t| |d�}t �||�}dd� |D �S )zwReturn EntryPoint objects for all installed packages. :return: EntryPoint objects for all installed packages. c s s | ] }|j V qd S rA )r )r/ rS r r r ri A s z entry_points.<locals>.<genexpr>r )�keyc S s i | ]\}}|t |��qS r )�tuple)r/ r �epsr r r r� F s �z entry_points.<locals>.<dictcomp>)rl rm rn r r� � attrgetter�sortedr� )r� Zby_groupZorderedZgroupedr r r r < s � �r c C s t | �jS )z�Return a list of files for the named package. :param distribution_name: The name of the distribution package to query. :return: List of files composing the distribution. )r r r� r r r r L s r c C s t | �jS )z� Return a list of requirements for the named package. :return: An iterator of requirements, suitable for packaging.requirement.Requirement. )r r r� r r r r U s r ),r: r� r+ r� r� rw r� rr r} r� r" rl r� � collectionsZ configparserr � contextlibr � importlibr � importlib.abcr r �__all__�ModuleNotFoundErrorr � namedtupler Z PurePosixPathrG rU r r r� r� r� rq r r r r r r r r r r r �<module> sN �a Y/0
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