U
    ZÊ¹jb›  ã                   @   sH  d Z ddlZddlZddlZddlmZmZmZmZm	Z	m
Z
mZmZ ddlmZ ddlmZ eeef Zeded�Zeeegef Zeed	œd
d„ZG dd„ deƒZG dd„ dejd�ZG dd„ deƒZe d¡Zeee d	œdd„Zee edœdd„Zeedœdd„Z ee ee e
ee ee f dœdd„Z!G dd „ d eƒZ"dS )!zŠ
.. testsetup::

    from packaging.specifiers import Specifier, SpecifierSet, InvalidSpecifier
    from packaging.version import Version
é    N)ÚCallableÚIterableÚIteratorÚListÚOptionalÚTupleÚTypeVarÚUnioné   )Úcanonicalize_version)ÚVersionÚUnparsedVersionVar)Úbound)ÚversionÚreturnc                 C   s   t | tƒst| ƒ} | S ©N)Ú
isinstancer   )r   © r   úb/var/www/html/bwave/python/venv/lib/python3.8/site-packages/wheel/vendored/packaging/specifiers.pyÚ_coerce_version   s    
r   c                   @   s   e Zd ZdZdS )ÚInvalidSpecifiera  
    Raised when attempting to create a :class:`Specifier` with a specifier
    string that is invalid.

    >>> Specifier("lolwat")
    Traceback (most recent call last):
        ...
    packaging.specifiers.InvalidSpecifier: Invalid specifier: 'lolwat'
    N)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r   r   r   r   r      s   r   c                   @   sÀ   e Zd Zejedœdd„ƒZejedœdd„ƒZeje	e
dœdd„ƒZeejee
 dœd	d
„ƒƒZeje
ddœdd
„ƒZejdeee
 e
dœdd„ƒZejdee ee
 ee dœdd„ƒZdS )ÚBaseSpecifier©r   c                 C   s   dS )zŽ
        Returns the str representation of this Specifier-like object. This
        should be representative of the Specifier itself.
        Nr   ©Úselfr   r   r   Ú__str__+   s    zBaseSpecifier.__str__c                 C   s   dS )zF
        Returns a hash value for this Specifier-like object.
        Nr   r   r   r   r   Ú__hash__2   s    zBaseSpecifier.__hash__©Úotherr   c                 C   s   dS )z«
        Returns a boolean representing whether or not the two Specifier-like
        objects are equal.

        :param other: The other object to check against.
        Nr   ©r   r"   r   r   r   Ú__eq__8   s    zBaseSpecifier.__eq__c                 C   s   dS )zîWhether or not pre-releases as a whole are allowed.

        This can be set to either ``True`` or ``False`` to explicitly enable or disable
        prereleases or it can be set to ``None`` (the default) to use default semantics.
        Nr   r   r   r   r   ÚprereleasesA   s    zBaseSpecifier.prereleasesN©Úvaluer   c                 C   s   dS )zQSetter for :attr:`prereleases`.

        :param value: The value to set.
        Nr   ©r   r'   r   r   r   r%   J   s    ©Úitemr%   r   c                 C   s   dS )zR
        Determines if the given item is contained within this specifier.
        Nr   )r   r*   r%   r   r   r   ÚcontainsQ   s    zBaseSpecifier.contains©Úiterabler%   r   c                 C   s   dS )z•
        Takes an iterable of items and filters them so that only items which
        are contained within this specifier are allowed in it.
        Nr   )r   r-   r%   r   r   r   ÚfilterW   s    zBaseSpecifier.filter)N)N)r   r   r   ÚabcÚabstractmethodÚstrr   Úintr    ÚobjectÚboolr$   Úpropertyr   r%   Úsetterr+   r   r   r   r.   r   r   r   r   r   *   s(    ÿ þr   )Ú	metaclassc                	   @   sö  e Zd ZdZdZdZe de e d ejej	B ¡Z
dddd	d
ddddœZdFeee ddœdd„Zeedœdd„ƒZejeddœdd„ƒZeedœdd„ƒZeedœdd„ƒZedœdd„Zedœdd „Zeeeef dœd!d"„ƒZedœd#d$„Zeed%œd&d'„Zeed(œd)d*„Zeeed+œd,d-„Z eeed+œd.d/„Z!eeed+œd0d1„Z"eeed+œd2d3„Z#eeed+œd4d5„Z$eeed6œd7d8„Z%eeed6œd9d:„Z&eeed+œd;d<„Z'e(eef ed=œd>d?„Z)dGe*ee ed@œdAdB„Z+dHe,e- ee e.e- dCœdDdE„Z/dS )IÚ	Specifiera?  This class abstracts handling of version specifiers.

    .. tip::

        It is generally not required to instantiate this manually. You should instead
        prefer to work with :class:`SpecifierSet` instead, which can parse
        comma-separated version specifiers (which is what package metadata contains).
    z8
        (?P<operator>(~=|==|!=|<=|>=|<|>|===))
        aÈ  
        (?P<version>
            (?:
                # The identity operators allow for an escape hatch that will
                # do an exact string match of the version you wish to install.
                # This will not be parsed by PEP 440 and we cannot determine
                # any semantic meaning from it. This operator is discouraged
                # but included entirely as an escape hatch.
                (?<====)  # Only match for the identity operator
                \s*
                [^\s;)]*  # The arbitrary version can be just about anything,
                          # we match everything except for whitespace, a
                          # semi-colon for marker support, and a closing paren
                          # since versions can be enclosed in them.
            )
            |
            (?:
                # The (non)equality operators allow for wild card and local
                # versions to be specified so we have to define these two
                # operators separately to enable that.
                (?<===|!=)            # Only match for equals and not equals

                \s*
                v?
                (?:[0-9]+!)?          # epoch
                [0-9]+(?:\.[0-9]+)*   # release

                # You cannot use a wild card and a pre-release, post-release, a dev or
                # local version together so group them with a | and make them optional.
                (?:
                    \.\*  # Wild card syntax of .*
                    |
                    (?:                                  # pre release
                        [-_\.]?
                        (alpha|beta|preview|pre|a|b|c|rc)
                        [-_\.]?
                        [0-9]*
                    )?
                    (?:                                  # post release
                        (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
                    )?
                    (?:[-_\.]?dev[-_\.]?[0-9]*)?         # dev release
                    (?:\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*)? # local
                )?
            )
            |
            (?:
                # The compatible operator requires at least two digits in the
                # release segment.
                (?<=~=)               # Only match for the compatible operator

                \s*
                v?
                (?:[0-9]+!)?          # epoch
                [0-9]+(?:\.[0-9]+)+   # release  (We have a + instead of a *)
                (?:                   # pre release
                    [-_\.]?
                    (alpha|beta|preview|pre|a|b|c|rc)
                    [-_\.]?
                    [0-9]*
                )?
                (?:                                   # post release
                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
                )?
                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
            )
            |
            (?:
                # All other operators only allow a sub set of what the
                # (non)equality operators do. Specifically they do not allow
                # local versions to be specified nor do they allow the prefix
                # matching wild cards.
                (?<!==|!=|~=)         # We have special cases for these
                                      # operators so we want to make sure they
                                      # don't match here.

                \s*
                v?
                (?:[0-9]+!)?          # epoch
                [0-9]+(?:\.[0-9]+)*   # release
                (?:                   # pre release
                    [-_\.]?
                    (alpha|beta|preview|pre|a|b|c|rc)
                    [-_\.]?
                    [0-9]*
                )?
                (?:                                   # post release
                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
                )?
                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
            )
        )
        z^\s*z\s*$Ú
compatibleÚequalÚ	not_equalÚless_than_equalÚgreater_than_equalÚ	less_thanÚgreater_thanÚ	arbitrary)ú~=ú==z!=ú<=ú>=ú<ú>ú===Ú N)Úspecr%   r   c                 C   sH   | j  |¡}|s td|› d�ƒ‚| d¡ ¡ | d¡ ¡ f| _|| _dS )að  Initialize a Specifier instance.

        :param spec:
            The string representation of a specifier which will be parsed and
            normalized before use.
        :param prereleases:
            This tells the specifier if it should accept prerelease versions if
            applicable or not. The default of ``None`` will autodetect it from the
            given specifiers.
        :raises InvalidSpecifier:
            If the given specifier is invalid (i.e. bad syntax).
        zInvalid specifier: 'ú'Úoperatorr   N)Ú_regexÚsearchr   ÚgroupÚstripÚ_specÚ_prereleases)r   rI   r%   Úmatchr   r   r   Ú__init__Ü   s    þzSpecifier.__init__r   c                 C   sR   | j d k	r| j S | j\}}|dkrN|dkr@| d¡r@|d d… }t|ƒjrNdS dS )N)rB   rD   rC   rA   rG   rB   ú.*éþÿÿÿTF)rQ   rP   Úendswithr   Úis_prerelease)r   rK   r   r   r   r   r%   ö   s    


zSpecifier.prereleasesr&   c                 C   s
   || _ d S r   ©rQ   r(   r   r   r   r%     s    c                 C   s
   | j d S )z`The operator of this specifier.

        >>> Specifier("==1.2.3").operator
        '=='
        r   ©rP   r   r   r   r   rK     s    zSpecifier.operatorc                 C   s
   | j d S )zaThe version of this specifier.

        >>> Specifier("==1.2.3").version
        '1.2.3'
        r
   rY   r   r   r   r   r     s    zSpecifier.versionc                 C   s8   | j dk	rd| j›�nd}d| jj› dt| ƒ›|› d�S )aT  A representation of the Specifier that shows all internal state.

        >>> Specifier('>=1.0.0')
        <Specifier('>=1.0.0')>
        >>> Specifier('>=1.0.0', prereleases=False)
        <Specifier('>=1.0.0', prereleases=False)>
        >>> Specifier('>=1.0.0', prereleases=True)
        <Specifier('>=1.0.0', prereleases=True)>
        Nú, prereleases=rH   rE   ú(ú)>)rQ   r%   Ú	__class__r   r1   ©r   Úprer   r   r   Ú__repr__$  s
    ÿýzSpecifier.__repr__c                 C   s   dj | jŽ S )zÐA string representation of the Specifier that can be round-tripped.

        >>> str(Specifier('>=1.0.0'))
        '>=1.0.0'
        >>> str(Specifier('>=1.0.0', prereleases=False))
        '>=1.0.0'
        z{}{})ÚformatrP   r   r   r   r   r   6  s    zSpecifier.__str__c                 C   s*   t | jd | jd dkd�}| jd |fS )Nr
   r   rA   ©Ústrip_trailing_zero)r   rP   )r   Úcanonical_versionr   r   r   Ú_canonical_spec@  s
    þzSpecifier._canonical_specc                 C   s
   t | jƒS r   )Úhashre   r   r   r   r   r    H  s    zSpecifier.__hash__r!   c                 C   sT   t |tƒr8z|  t|ƒ¡}W qH tk
r4   t Y S X nt || jƒsHtS | j|jkS )a>  Whether or not the two Specifier-like objects are equal.

        :param other: The other object to check against.

        The value of :attr:`prereleases` is ignored.

        >>> Specifier("==1.2.3") == Specifier("== 1.2.3.0")
        True
        >>> (Specifier("==1.2.3", prereleases=False) ==
        ...  Specifier("==1.2.3", prereleases=True))
        True
        >>> Specifier("==1.2.3") == "==1.2.3"
        True
        >>> Specifier("==1.2.3") == Specifier("==1.2.4")
        False
        >>> Specifier("==1.2.3") == Specifier("~=1.2.3")
        False
        )r   r1   r]   r   ÚNotImplementedre   r#   r   r   r   r$   K  s    
zSpecifier.__eq__)Úopr   c                 C   s   t | d| j| › �ƒ}|S )NÚ	_compare_)ÚgetattrÚ
_operators)r   rh   Úoperator_callabler   r   r   Ú_get_operatorh  s
     ÿzSpecifier._get_operator)ÚprospectiverI   r   c                 C   sH   t tt tt|ƒ¡ƒd d… ƒ}|d7 }|  d¡||ƒoF|  d¡||ƒS )NéÿÿÿÿrT   rD   rB   )Ú_version_joinÚlistÚ	itertoolsÚ	takewhileÚ_is_not_suffixÚ_version_splitrm   )r   rn   rI   Úprefixr   r   r   Ú_compare_compatiblen  s    	ÿ ÿzSpecifier._compare_compatiblec                 C   s†   |  d¡rbt|jdd�}t|d d… dd�}t|ƒ}t|ƒ}t||ƒ\}}|d t|ƒ… }	|	|kS t|ƒ}
|
jszt|jƒ}||
kS d S )NrT   Frb   rU   )rV   r   Úpublicru   Ú_pad_versionÚlenr   Úlocal)r   rn   rI   Únormalized_prospectiveÚnormalized_specÚ
split_specÚsplit_prospectiveÚpadded_prospectiveÚ_Úshortened_prospectiveÚspec_versionr   r   r   Ú_compare_equal‚  s    
 ÿ
zSpecifier._compare_equalc                 C   s   |   ||¡ S r   )r„   ©r   rn   rI   r   r   r   Ú_compare_not_equalª  s    zSpecifier._compare_not_equalc                 C   s   t |jƒt |ƒkS r   ©r   rx   r…   r   r   r   Ú_compare_less_than_equal­  s    z"Specifier._compare_less_than_equalc                 C   s   t |jƒt |ƒkS r   r‡   r…   r   r   r   Ú_compare_greater_than_equal³  s    z%Specifier._compare_greater_than_equal)rn   Úspec_strr   c                 C   s<   t |ƒ}||k sdS |js8|jr8t |jƒt |jƒkr8dS dS ©NFT)r   rW   Úbase_version©r   rn   rŠ   rI   r   r   r   Ú_compare_less_than¹  s    zSpecifier._compare_less_thanc                 C   s^   t |ƒ}||ksdS |js8|jr8t |jƒt |jƒkr8dS |jd k	rZt |jƒt |jƒkrZdS dS r‹   )r   Úis_postreleaserŒ   r{   r�   r   r   r   Ú_compare_greater_thanÑ  s    
zSpecifier._compare_greater_thanc                 C   s   t |ƒ ¡ t |ƒ ¡ kS r   )r1   Úlowerr…   r   r   r   Ú_compare_arbitraryï  s    zSpecifier._compare_arbitrary©r*   r   c                 C   s
   |   |¡S )a;  Return whether or not the item is contained in this specifier.

        :param item: The item to check for.

        This is used for the ``in`` operator and behaves the same as
        :meth:`contains` with no ``prereleases`` argument passed.

        >>> "1.2.3" in Specifier(">=1.2.3")
        True
        >>> Version("1.2.3") in Specifier(">=1.2.3")
        True
        >>> "1.0.0" in Specifier(">=1.2.3")
        False
        >>> "1.3.0a1" in Specifier(">=1.2.3")
        False
        >>> "1.3.0a1" in Specifier(">=1.2.3", prereleases=True)
        True
        ©r+   ©r   r*   r   r   r   Ú__contains__ò  s    zSpecifier.__contains__r)   c                 C   s<   |dkr| j }t|ƒ}|jr$|s$dS |  | j¡}||| jƒS )al  Return whether or not the item is contained in this specifier.

        :param item:
            The item to check for, which can be a version string or a
            :class:`Version` instance.
        :param prereleases:
            Whether or not to match prereleases with this Specifier. If set to
            ``None`` (the default), it uses :attr:`prereleases` to determine
            whether or not prereleases are allowed.

        >>> Specifier(">=1.2.3").contains("1.2.3")
        True
        >>> Specifier(">=1.2.3").contains(Version("1.2.3"))
        True
        >>> Specifier(">=1.2.3").contains("1.0.0")
        False
        >>> Specifier(">=1.2.3").contains("1.3.0a1")
        False
        >>> Specifier(">=1.2.3", prereleases=True).contains("1.3.0a1")
        True
        >>> Specifier(">=1.2.3").contains("1.3.0a1", prereleases=True)
        True
        NF)r%   r   rW   rm   rK   r   )r   r*   r%   Únormalized_itemrl   r   r   r   r+     s    
zSpecifier.containsr,   c                 c   s~   d}g }d|dk	r|ndi}|D ]@}t |ƒ}| j|f|Žr |jrV|sV| jsV| |¡ q d}|V  q |sz|rz|D ]
}|V  qndS )aO  Filter items in the given iterable, that match the specifier.

        :param iterable:
            An iterable that can contain version strings and :class:`Version` instances.
            The items in the iterable will be filtered according to the specifier.
        :param prereleases:
            Whether or not to allow prereleases in the returned iterator. If set to
            ``None`` (the default), it will be intelligently decide whether to allow
            prereleases or not (based on the :attr:`prereleases` attribute, and
            whether the only versions matching are prereleases).

        This method is smarter than just ``filter(Specifier().contains, [...])``
        because it implements the rule from :pep:`440` that a prerelease item
        SHOULD be accepted if no other versions match the given specifier.

        >>> list(Specifier(">=1.2.3").filter(["1.2", "1.3", "1.5a1"]))
        ['1.3']
        >>> list(Specifier(">=1.2.3").filter(["1.2", "1.2.3", "1.3", Version("1.4")]))
        ['1.2.3', '1.3', <Version('1.4')>]
        >>> list(Specifier(">=1.2.3").filter(["1.2", "1.5a1"]))
        ['1.5a1']
        >>> list(Specifier(">=1.2.3").filter(["1.3", "1.5a1"], prereleases=True))
        ['1.3', '1.5a1']
        >>> list(Specifier(">=1.2.3", prereleases=True).filter(["1.3", "1.5a1"]))
        ['1.3', '1.5a1']
        Fr%   NT)r   r+   rW   r%   Úappend)r   r-   r%   ÚyieldedÚfound_prereleasesÚkwr   Úparsed_versionr   r   r   r.   5  s"    ÿÿzSpecifier.filter)rH   N)N)N)0r   r   r   r   Ú_operator_regex_strÚ_version_regex_strÚreÚcompileÚVERBOSEÚ
IGNORECASErL   rk   r1   r   r4   rS   r5   r%   r6   rK   r   r`   r   r   re   r2   r    r3   r$   ÚCallableOperatorrm   r   rw   r„   r†   rˆ   r‰   rŽ   r�   r’   r	   r–   ÚUnparsedVersionr+   r   r   r   r.   r   r   r   r   r8   a   sj   	^
þø
( ÿ þ/ ÿ þr8   z^([0-9]+)((?:a|b|c|rc)[0-9]+)$c                 C   s^   g }|   d¡\}}}| |pd¡ | d¡D ],}t |¡}|rN| | ¡ ¡ q,| |¡ q,|S )a  Split version into components.

    The split components are intended for version comparison. The logic does
    not attempt to retain the original version string, so joining the
    components back with :func:`_version_join` may not produce the original
    version string.
    ú!Ú0Ú.)Ú
rpartitionr˜   ÚsplitÚ_prefix_regexrM   ÚextendÚgroups)r   ÚresultÚepochr�   Úrestr*   rR   r   r   r   ru   v  s    
ru   )Ú
componentsr   c                 C   s   | ^}}|› dd  |¡› �S )zñJoin split version components into a version string.

    This function assumes the input came from :func:`_version_split`, where the
    first component must be the epoch (either empty or numeric), and all other
    components numeric.
    r¥   r§   )Újoin)r°   r®   r¯   r   r   r   rp   Œ  s    rp   )Úsegmentr   c                    s   t ‡ fdd„dD ƒƒ S )Nc                 3   s   | ]}ˆ   |¡V  qd S r   )Ú
startswith)Ú.0rv   ©r²   r   r   Ú	<genexpr>˜  s    z!_is_not_suffix.<locals>.<genexpr>)ÚdevÚaÚbÚrcÚpost)Úanyrµ   r   rµ   r   rt   —  s    ÿrt   )ÚleftÚrightr   c              
   C   sê   g g  }}|  tt dd„ | ¡ƒ¡ |  tt dd„ |¡ƒ¡ |  | t|d ƒd … ¡ |  |t|d ƒd … ¡ | ddgtdt|d ƒt|d ƒ ƒ ¡ | ddgtdt|d ƒt|d ƒ ƒ ¡ ttj |¡ƒttj |¡ƒfS )Nc                 S   s   |   ¡ S r   ©Úisdigit©Úxr   r   r   Ú<lambda>¡  ó    z_pad_version.<locals>.<lambda>c                 S   s   |   ¡ S r   r¿   rÁ   r   r   r   rÃ   ¢  rÄ   r   r
   r¦   )	r˜   rq   rr   rs   rz   ÚinsertÚmaxÚchainÚfrom_iterable)r½   r¾   Ú
left_splitÚright_splitr   r   r   ry   �  s    
,,þry   c                   @   s  e Zd ZdZd$eee ddœdd„Zeee dœdd	„ƒZ	e	j
edd
œdd	„ƒZ	edœdd„Zedœdd„Zedœdd„Zed ef d dœdd„Zeedœdd„Zedœdd„Zee dœdd„Zeedœdd„Zd%eee ee edœdd „Zd&ee ee ee d!œd"d#„ZdS )'ÚSpecifierSetzÌThis class abstracts handling of a set of version specifiers.

    It can be passed a single specifier (``>=3.0``), a comma-separated list of
    specifiers (``>=3.0,!=3.1``), or no specifier at all.
    rH   N)Ú
specifiersr%   r   c                 C   s.   dd„ |  d¡D ƒ}ttt|ƒƒ| _|| _dS )aN  Initialize a SpecifierSet instance.

        :param specifiers:
            The string representation of a specifier or a comma-separated list of
            specifiers which will be parsed and normalized before use.
        :param prereleases:
            This tells the SpecifierSet if it should accept prerelease versions if
            applicable or not. The default of ``None`` will autodetect it from the
            given specifiers.

        :raises InvalidSpecifier:
            If the given ``specifiers`` are not parseable than this exception will be
            raised.
        c                 S   s   g | ]}|  ¡ r|  ¡ ‘qS r   )rO   ©r´   Úsr   r   r   Ú
<listcomp>Í  s      z)SpecifierSet.__init__.<locals>.<listcomp>ú,N)r©   Ú	frozensetÚmapr8   Ú_specsrQ   )r   rÌ   r%   Úsplit_specifiersr   r   r   rS   ¹  s    zSpecifierSet.__init__r   c                 C   s.   | j d k	r| j S | jsd S tdd„ | jD ƒƒS )Nc                 s   s   | ]}|j V  qd S r   ©r%   rÍ   r   r   r   r¶   å  s     z+SpecifierSet.prereleases.<locals>.<genexpr>)rQ   rÓ   r¼   r   r   r   r   r%   Ö  s
    
zSpecifierSet.prereleasesr&   c                 C   s
   || _ d S r   rX   r(   r   r   r   r%   ç  s    c                 C   s.   | j dk	rd| j›�nd}dt| ƒ›|› d�S )a  A representation of the specifier set that shows all internal state.

        Note that the ordering of the individual specifiers within the set may not
        match the input string.

        >>> SpecifierSet('>=1.0.0,!=2.0.0')
        <SpecifierSet('!=2.0.0,>=1.0.0')>
        >>> SpecifierSet('>=1.0.0,!=2.0.0', prereleases=False)
        <SpecifierSet('!=2.0.0,>=1.0.0', prereleases=False)>
        >>> SpecifierSet('>=1.0.0,!=2.0.0', prereleases=True)
        <SpecifierSet('!=2.0.0,>=1.0.0', prereleases=True)>
        NrZ   rH   z<SpecifierSet(r\   )rQ   r%   r1   r^   r   r   r   r`   ë  s
    ÿýzSpecifierSet.__repr__c                 C   s   d  tdd„ | jD ƒƒ¡S )an  A string representation of the specifier set that can be round-tripped.

        Note that the ordering of the individual specifiers within the set may not
        match the input string.

        >>> str(SpecifierSet(">=1.0.0,!=1.0.1"))
        '!=1.0.1,>=1.0.0'
        >>> str(SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False))
        '!=1.0.1,>=1.0.0'
        rÐ   c                 s   s   | ]}t |ƒV  qd S r   )r1   rÍ   r   r   r   r¶     s     z'SpecifierSet.__str__.<locals>.<genexpr>)r±   ÚsortedrÓ   r   r   r   r   r      s    zSpecifierSet.__str__c                 C   s
   t | jƒS r   )rf   rÓ   r   r   r   r   r      s    zSpecifierSet.__hash__r!   c                 C   s˜   t |tƒrt|ƒ}nt |tƒs"tS tƒ }t| j|jB ƒ|_| jdkrX|jdk	rX|j|_n<| jdk	rv|jdkrv| j|_n| j|jkrŒ| j|_ntdƒ‚|S )a‚  Return a SpecifierSet which is a combination of the two sets.

        :param other: The other object to combine with.

        >>> SpecifierSet(">=1.0.0,!=1.0.1") & '<=2.0.0,!=2.0.1'
        <SpecifierSet('!=1.0.1,!=2.0.1,<=2.0.0,>=1.0.0')>
        >>> SpecifierSet(">=1.0.0,!=1.0.1") & SpecifierSet('<=2.0.0,!=2.0.1')
        <SpecifierSet('!=1.0.1,!=2.0.1,<=2.0.0,>=1.0.0')>
        NzFCannot combine SpecifierSets with True and False prerelease overrides.)r   r1   rË   rg   rÑ   rÓ   rQ   Ú
ValueError)r   r"   Ú	specifierr   r   r   Ú__and__  s     






ÿzSpecifierSet.__and__c                 C   s6   t |ttfƒrtt|ƒƒ}nt |tƒs*tS | j|jkS )a¡  Whether or not the two SpecifierSet-like objects are equal.

        :param other: The other object to check against.

        The value of :attr:`prereleases` is ignored.

        >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0,!=1.0.1")
        True
        >>> (SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False) ==
        ...  SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True))
        True
        >>> SpecifierSet(">=1.0.0,!=1.0.1") == ">=1.0.0,!=1.0.1"
        True
        >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0")
        False
        >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0,!=1.0.2")
        False
        )r   r1   r8   rË   rg   rÓ   r#   r   r   r   r$   0  s
    
zSpecifierSet.__eq__c                 C   s
   t | jƒS )z7Returns the number of specifiers in this specifier set.)rz   rÓ   r   r   r   r   Ú__len__J  s    zSpecifierSet.__len__c                 C   s
   t | jƒS )zð
        Returns an iterator over all the underlying :class:`Specifier` instances
        in this specifier set.

        >>> sorted(SpecifierSet(">=1.0.0,!=1.0.1"), key=str)
        [<Specifier('!=1.0.1')>, <Specifier('>=1.0.0')>]
        )ÚiterrÓ   r   r   r   r   Ú__iter__N  s    zSpecifierSet.__iter__r“   c                 C   s
   |   |¡S )ar  Return whether or not the item is contained in this specifier.

        :param item: The item to check for.

        This is used for the ``in`` operator and behaves the same as
        :meth:`contains` with no ``prereleases`` argument passed.

        >>> "1.2.3" in SpecifierSet(">=1.0.0,!=1.0.1")
        True
        >>> Version("1.2.3") in SpecifierSet(">=1.0.0,!=1.0.1")
        True
        >>> "1.0.1" in SpecifierSet(">=1.0.0,!=1.0.1")
        False
        >>> "1.3.0a1" in SpecifierSet(">=1.0.0,!=1.0.1")
        False
        >>> "1.3.0a1" in SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True)
        True
        r”   r•   r   r   r   r–   X  s    zSpecifierSet.__contains__)r*   r%   Ú	installedr   c                    s\   t ˆ tƒstˆ ƒ‰ ˆdkr | j‰ˆs.ˆ jr.dS |rBˆ jrBtˆ jƒ‰ t‡ ‡fdd„| jD ƒƒS )a´  Return whether or not the item is contained in this SpecifierSet.

        :param item:
            The item to check for, which can be a version string or a
            :class:`Version` instance.
        :param prereleases:
            Whether or not to match prereleases with this SpecifierSet. If set to
            ``None`` (the default), it uses :attr:`prereleases` to determine
            whether or not prereleases are allowed.

        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.2.3")
        True
        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains(Version("1.2.3"))
        True
        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.0.1")
        False
        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.3.0a1")
        False
        >>> SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True).contains("1.3.0a1")
        True
        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.3.0a1", prereleases=True)
        True
        NFc                 3   s   | ]}|j ˆ ˆd �V  qdS )rÕ   Nr”   rÍ   ©r*   r%   r   r   r¶   ¤  s     z(SpecifierSet.contains.<locals>.<genexpr>)r   r   r%   rW   rŒ   ÚallrÓ   )r   r*   r%   rÝ   r   rÞ   r   r+   m  s    



zSpecifierSet.containsr,   c                 C   sœ   |dkr| j }| jr:| jD ]}|j|t|ƒd�}qt|ƒS g }g }|D ]0}t|ƒ}|jrl|sl|sv| |¡ qF| |¡ qF|s�|r�|dkr�t|ƒS t|ƒS dS )a.  Filter items in the given iterable, that match the specifiers in this set.

        :param iterable:
            An iterable that can contain version strings and :class:`Version` instances.
            The items in the iterable will be filtered according to the specifier.
        :param prereleases:
            Whether or not to allow prereleases in the returned iterator. If set to
            ``None`` (the default), it will be intelligently decide whether to allow
            prereleases or not (based on the :attr:`prereleases` attribute, and
            whether the only versions matching are prereleases).

        This method is smarter than just ``filter(SpecifierSet(...).contains, [...])``
        because it implements the rule from :pep:`440` that a prerelease item
        SHOULD be accepted if no other versions match the given specifier.

        >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.3", "1.5a1"]))
        ['1.3']
        >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.3", Version("1.4")]))
        ['1.3', <Version('1.4')>]
        >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.5a1"]))
        []
        >>> list(SpecifierSet(">=1.2.3").filter(["1.3", "1.5a1"], prereleases=True))
        ['1.3', '1.5a1']
        >>> list(SpecifierSet(">=1.2.3", prereleases=True).filter(["1.3", "1.5a1"]))
        ['1.3', '1.5a1']

        An "empty" SpecifierSet will filter items based on the presence of prerelease
        versions in the set.

        >>> list(SpecifierSet("").filter(["1.3", "1.5a1"]))
        ['1.3']
        >>> list(SpecifierSet("").filter(["1.5a1"]))
        ['1.5a1']
        >>> list(SpecifierSet("", prereleases=True).filter(["1.3", "1.5a1"]))
        ['1.3', '1.5a1']
        >>> list(SpecifierSet("").filter(["1.3", "1.5a1"], prereleases=True))
        ['1.3', '1.5a1']
        NrÕ   )r%   rÓ   r.   r4   rÛ   r   rW   r˜   )r   r-   r%   rI   Úfilteredrš   r*   rœ   r   r   r   r.   ¦  s"    ,

zSpecifierSet.filter)rH   N)NN)N)r   r   r   r   r1   r   r4   rS   r5   r%   r6   r`   r   r2   r    r	   rÙ   r3   r$   rÚ   r   r8   rÜ   r¤   r–   r+   r   r   r.   r   r   r   r   rË   ²  sD      ÿ þ 
  üû: ÿ þrË   )#r   r/   rr   rŸ   Útypingr   r   r   r   r   r   r   r	   Úutilsr   r   r   r1   r¤   r   r4   r£   r   r×   r   ÚABCMetar   r8   r    rª   ru   rp   rt   ry   rË   r   r   r   r   Ú<module>   s.   (7    
*