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Nr )r% rf r r r rt w s z%DistributionFinder.find_distributionsN)r r r r rb r� r� rt r r r r r S s 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�|��� | _d S r@ )�root�osr_ �basename�lower�base)r% r� r r r rY � s zFastPath.__init__c C s t �| j|�S r@ )rq rr r� )r% �childr r r �joinpath� s zFastPath.joinpathc C sT t t�� t�| jpd�W 5 Q R � S Q R X t t�� | �� W 5 Q R � S Q R X 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 rh � s �z(FastPath.zip_children.<locals>.<genexpr>)�zipfilerr 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}|�� }||jksH|�|j�r6|�|j�sH| �|�r|dkr| �|�V qd S )Nzegg-info) r� r� � exact_matchesr� r� r� �suffixesr� r� )r% r/ r� Zn_lowr r r r� � s � ���zFastPath.searchN) r r r r rY 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 krd S |�� �dd�� _� jd � _� fdd�� jD �� _� jd � _d S )N�-rX c s g | ]}� j | �qS r )� normalized)r. �suffixr> r r r3 � s z%Prepared.__init__.<locals>.<listcomp>r� )r/ r� �replacer� r� r� r� r� )r% r/ r r> r rY � s �zPrepared.__init__) r r r r r� r� r� r� r� rY 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_pathsr/ r_ r� rp )r1 rf �foundr r r rt � 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 r@ )r� r� )r. r_ r` r r rh � s �z3MetadataPathFinder._search_paths.<locals>.<genexpr>)rk rl rm r� r� )r1 r/ �pathsr r` r r� � s �z MetadataPathFinder._search_pathsN)r r r rE r rb rt r� r r r r r� � s r� c @ s. e Zd Zdd� Zdd� Zejje_dd� ZdS )rp 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 rY � s zPathDistribution.__init__c C s< t ttttt��" | j�|�jdd�W 5 Q R � S Q R X d S )NrG rH ) r �FileNotFoundError�IsADirectoryError�KeyError�NotADirectoryError�PermissionErrorr� r� rO r\ r r r rO � s �zPathDistribution.read_textc C s | j j| S r@ )r� �parentr^ r r r rS � s z PathDistribution.locate_fileN)r r r rY rO r r rS r r r r rp � s rp 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 re �Zdistribution_namer r r r � s c K s t jf | �S )z|Get all ``Distribution`` instances in the current environment. :return: An iterable of ``Distribution`` instances. )r ro )rn r r r r � s 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 re r r� r r r r s 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 s 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 r@ )r )r. rR r r r rh s z entry_points.<locals>.<genexpr>r )�keyc S s i | ]\}}|t |��qS r )�tuple)r. r �epsr r r r� s � z entry_points.<locals>.<dictcomp>)rk rl rm r r� � attrgetter�sortedr� )r� Zby_groupZorderedZgroupedr r r r s � �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 % s 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 . s ),r9 r� r* r� r� rv rx rq r� r� r" rk r� � collectionsZ configparserr � contextlibr � importlibr � importlib.abcr r �__all__�ModuleNotFoundErrorr � namedtupler Z PurePosixPathrF rT r r r� r� r� rp r r r r r r r r r r r �<module> sb � �N E/0
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