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U �A�` � @ s� d Z ddlZddlZddlZe�dej�Ze�d�Ze�d�Z dd� Z ejejej ejejejd�ZG d d � d �Zdadd� ZdS ) zBModule for parsing and testing package version predicate strings. � Nz'(?i)^\s*([a-z_]\w*(?:\.[a-z_]\w*)*)(.*)z^\s*\((.*)\)\s*$z%^\s*(<=|>=|<|>|!=|==)\s*([^\s,]+)\s*$c C s6 t �| �}|std| ��|�� \}}|tj�|�fS )zVParse a single version comparison. Return (comparison string, StrictVersion) z"bad package restriction syntax: %r)�re_splitComparison�match� ValueError�groups� distutils�version� StrictVersion)�pred�res�compZverStr� r �0/usr/lib/python3.8/distutils/versionpredicate.py�splitUp s r )�<z<=z==�>z>=z!=c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) �VersionPredicatea� Parse and test package version predicates. >>> v = VersionPredicate('pyepat.abc (>1.0, <3333.3a1, !=1555.1b3)') The `name` attribute provides the full dotted name that is given:: >>> v.name 'pyepat.abc' The str() of a `VersionPredicate` provides a normalized human-readable version of the expression:: >>> print(v) pyepat.abc (> 1.0, < 3333.3a1, != 1555.1b3) The `satisfied_by()` method can be used to determine with a given version number is included in the set described by the version restrictions:: >>> v.satisfied_by('1.1') True >>> v.satisfied_by('1.4') True >>> v.satisfied_by('1.0') False >>> v.satisfied_by('4444.4') False >>> v.satisfied_by('1555.1b3') False `VersionPredicate` is flexible in accepting extra whitespace:: >>> v = VersionPredicate(' pat( == 0.1 ) ') >>> v.name 'pat' >>> v.satisfied_by('0.1') True >>> v.satisfied_by('0.2') False If any version numbers passed in do not conform to the restrictions of `StrictVersion`, a `ValueError` is raised:: >>> v = VersionPredicate('p1.p2.p3.p4(>=1.0, <=1.3a1, !=1.2zb3)') Traceback (most recent call last): ... ValueError: invalid version number '1.2zb3' It the module or package name given does not conform to what's allowed as a legal module or package name, `ValueError` is raised:: >>> v = VersionPredicate('foo-bar') Traceback (most recent call last): ... ValueError: expected parenthesized list: '-bar' >>> v = VersionPredicate('foo bar (12.21)') Traceback (most recent call last): ... ValueError: expected parenthesized list: 'bar (12.21)' c C s� |� � }|std��t�|�}|s.td| ��|�� \| _}|� � }|r�t�|�}|sbtd| ��|�� d }dd� |�d�D �| _| js�td| ��ng | _d S ) z*Parse a version predicate string. zempty package restrictionzbad package name in %rzexpected parenthesized list: %rr c S s g | ]}t |��qS r )r )�.0ZaPredr r r � <listcomp>t s z-VersionPredicate.__init__.<locals>.<listcomp>�,zempty parenthesized list in %rN) �stripr �re_validPackager r �name�re_paren�splitr )�selfZversionPredicateStrr Zparen�strr r r �__init__` s&