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�filename� supportedr_ � target_python�get_tagsr )rn rs �wheel�msgrE rE rF �"_fail_if_link_is_unsupported_wheel� s z*Factory._fail_if_link_is_unsupported_wheel�base�extrasc C sF t |�|f}z| j| }W |S ty" t||�}|| j|< Y |S w rq )�idrk �KeyErrorr3 )rn r| r} � cache_key� candidaterE rE rF �_make_extras_candidate� s � �z Factory._make_extras_candidater\ �templatec C sR z| j |j }W n ty t||| d�}|| j |j< Y nw |s#|S | �||�S )N)�factory)rj rZ r r0 r� )rn r\ r} r� r| rE rE rF �_make_candidate_from_dist� s � z!Factory._make_candidate_from_dist�name�versionc C s� || j v rd S |jri|| jvrczt||| ||d�| j|< W nE ty@ } ztjd||ddid� || j |< W Y d }~d S d }~w tyb } z| jsK� t� d||� || j |< W Y d }~d S d }~ww | j| }n^|| j vr�zt ||| ||d�| j |< W nE ty� } ztjd||ddid� || j |< W Y d }~d S d }~w ty� } z| js�� t� d||� || j |< W Y d }~d S d }~ww | j | }|s�|S | � ||�S )N)r� r� r� z3Discarding [blue underline]%s[/]: [yellow]%s[reset]�markupT)�extraz&Discarding %s due to build failure: %s) rg �editableri r2 r �logger�infor rf �warningrh r4 r� )rn rs r} r� r� r� �er| rE rE rF �_make_candidate_from_link� s| �� � �� �� � �� z!Factory._make_candidate_from_link�ireqs� specifier�hashes�prefers_installed�incompatible_idsc s� |sdS |d ��j sJ d��t�j j��t� � |D ] }|j s#J d���|j jM ��|jdd�M �� t|j�O � qdtt f� �����fdd� }dt t f� �����fd d � }t ||� |��S ) NrE r z)Candidates found on index must be PEP 508F)�trust_internetrY c sf �j rdS z�j� } W n ty Y dS w �j| jdd�s!dS �j| � �d�}t|��v r1dS |S )z6Get the candidate for the currently-installed version.NT)� prereleases)r\ r} r� )rd rm r �containsr� r� r~ )�installed_distr� )r} r� r� rn r� r� rE rF �_get_installed_candidate s" �� z@Factory._iter_found_candidates.<locals>._get_installed_candidatec 3 s� � �j j���d�} t| �� �}tdd� |D ��}dtdtfdd�}|��}t|�D ] }|r0|s5|jj r5q*t j �j |j� ��|j d�}|j |fV q*d S ) N)� project_namer� r� c s s � | ]}|j jV qd S rq )rs � is_yanked)r[ �icanrE rE rF � <genexpr>0 s � zUFactory._iter_found_candidates.<locals>.iter_index_candidate_infos.<locals>.<genexpr>r� rY c S s< | D ]}|j dkr dS |j dkrq|j�d�rq dS dS )Nz===T�==z.*F)�operatorr� �endswith)r� �sprE rE rF � is_pinned2 s zUFactory._iter_found_candidates.<locals>.iter_index_candidate_infos.<locals>.is_pinned)rs r} r� r� r� )r_ �find_best_candidate�list�iter_applicable�allr �bool�reversedrs r� � functools�partialr� r� )�result�icans� all_yankedr� �pinnedr� �func)r} r� r� rn r� r� rE rF �iter_index_candidate_infos% s. �� ��zBFactory._iter_found_candidates.<locals>.iter_index_candidate_infos) �reqr r� � frozensetr� r� r} r r, r r8 r7 ) rn r� r� r� r� r� �ireqr� r� rE )r} r� r� r� rn r� r� rF �_iter_found_candidates� s& (�z Factory._iter_found_candidates�base_requirementsc c sL � |D ] }|� � \}}|du rqt|�}|dus J d��| �||�V qdS )a8 Produce explicit candidates from the base given an extra-ed package. :param base_requirements: Requirements known to the resolver. The requirements are guaranteed to not have extras. :param extras: The extras to inject into the explicit requirements' candidates. Nzno extras here)�get_candidate_lookupr6 r� )rn r� r} r� � lookup_cand�_� base_candrE rE rF �#_iter_explicit_candidates_from_baseT s � �z+Factory._iter_explicit_candidates_from_base� identifier� constraintc c sF � |j D ] }| �|� | j|t� t||�t|�dd�}|r |V qdS )z�Produce explicit candidates from constraints. This creates "fake" InstallRequirement objects that are basically clones of what "should" be the template, but with original_link set to link. N�r} r� r� r� )�linksr{ r� r� r# r )rn r� r� r� rs r� rE rE rF �!_iter_candidates_from_constraintsj s � ���z)Factory._iter_candidates_from_constraintsrI �incompatibilitiesc s t � }g }�� D ]}|�� \} } | d ur|�| � | d ur#|�| � q t�t�� t��} |�| � �� | j d�t | j ��� W d � n1 sIw Y |rjz|�| j�� |d d�� W n tyi Y dS w dd� |� �d�D ��|s�| �|� j� j|��S � ���fdd�|D �S )NrE r )r� c S s h | ]}t |��qS rE )r~ �r[ �crE rE rF � <setcomp>� � z*Factory.find_candidates.<locals>.<setcomp>c 3 sD � | ] � t � ��vr��� �rt� fd d��� D ��r� V qdS )c 3 s � | ]}|� � �V qd S rq )�is_satisfied_by)r[ r� �r� rE rF r� � s � z4Factory.find_candidates.<locals>.<genexpr>.<genexpr>N)r~ r� r� )r[ �r� r� � incompat_idsrI r� rF r� � s � ����z*Factory.find_candidates.<locals>.<genexpr>)�setr� �add�append� contextlib�suppressr r) �updater� �getr� r� r} r� r r� r� r� ) rn r� rI r� r� r� �explicit_candidatesr� r� �candr� �parsed_requirementrE r� rF �find_candidates� sT � �� � �� ���zFactory.find_candidatesr� �requested_extrasc C s� |� |�st�d|j|j� d S |jst|�S | �|j� | j|jt |j �||jr.t |j�nd d d�}|d u rG|js@| j |j �t t |j��S | �|�S )Nz6Ignoring %s: markers '%s' don't match your environmentr� )� match_markersr� r� r� �markersrs r; r{ r� r� r} r rg r< � make_requirement_from_candidate)rn r� r� r� rE rE rF �"_make_requirement_from_install_req� s, � � z*Factory._make_requirement_from_install_req� root_ireqsc C s� t g i i �}t|�D ][\}}|jrDt|�}|rt|��|�� s q |js'J d��t|j�}||jv r;|j| |M < q t � |�|j|< q | j |dd�}|d u rPq |j r_|j|j vr_||j |j< |j�|� q |S )NzConstraint must be namedrE )r� )rH � enumerater� r% r r� r� r rJ r. � from_ireqr� � user_suppliedrK rI r� )rn r� � collected�ir� �problemr� r� rE rE rF �collect_root_requirements� s. � z!Factory.collect_root_requirementsr� c C s t |�S rq )r9 )rn r� rE rE rF r� s z'Factory.make_requirement_from_candidaterE � comes_fromc C s | � ||�}| �||�S rq )rb r� )rn r� r� r� r� rE rE rF �make_requirement_from_spec s z"Factory.make_requirement_from_specc C s" | j rd S t|�s d S t|| j�S rq )re rL r: ra )rn r� rE rE rF � make_requires_python_requirement s z(Factory.make_requires_python_requirementc C s* | j du s | jjr dS | j j||t� d�S )a� Look up the link in the wheel cache. 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N)rs � package_name�supported_tags)r` rP �require_hashes�get_cache_entryr' )rn rs r� rE rE rF �get_wheel_cache_entry s �z Factory.get_wheel_cache_entryc C sZ | j �|j�}|d u r d S | js|S |jr|S t� r+|jr+d|j� d|j� �}t |��d S )NzNWill not install to the user site because it will lack sys.path precedence to z in ) rm r� r� rc � in_usersiter* �in_site_packages�raw_name�locationr )rn r� r\ �messagerE rE rF �get_dist_to_uninstall1 s ���z Factory.get_dist_to_uninstall�causesr> c C s� |sJ d��| j j}t|�dkr+t|d jj�}d|d jj�d|� d|��}t|�S d|� d�}|D ]}|j� � }t|jj�}|d |�d |� d �7 }q3t|�S ) Nz,Requires-Python error reported with no causer+ r zPackage z requires a different Python: z not in z%Packages require a different Python. z not in:� z (required by �)) ra r� �lenrL r? r� r@ r� r �format_for_error)rn r� r� r� r� �cause�packagerE rE rF � _report_requires_python_errorM s" ��� z%Factory._report_requires_python_errorr� r@ c C s� |d u r t |�}n |� d|j� d�}| j�|j�}dd� tdd� |D ��D �}t�d|d�|�p1d � t |�d kr>t� d � t d |� ��S ) Nz (from r� c S s g | ]}t |��qS rE )rL )r[ �vrE rE rF � <listcomp>l r� z?Factory._report_single_requirement_conflict.<locals>.<listcomp>c S s h | ]}|j �qS rE )r� r� rE rE rF r� l s z>Factory._report_single_requirement_conflict.<locals>.<setcomp>zNCould not find a version that satisfies the requirement %s (from versions: %s)�, �nonezrequirements.txtz�HINT: You are attempting to install a package literally named "requirements.txt" (which cannot exist). Consider using the '-r' flag to install the packages listed in requirements.txtz#No matching distribution found for ) rL r� r_ �find_all_candidatesr� �sortedr� �critical�joinr� r )rn r� r@ �req_disp�cands�versionsrE rE rF �#_report_single_requirement_conflictc s � �z+Factory._report_single_requirement_conflictr� z,ResolutionImpossible[Requirement, Candidate]rJ c s� |j sJ d��� fdd�|j D �}|r� �td|��S t|j �dkr4|j d \}}|j|vr4� �||�S dtt dtfd d �}d tdtfd d �}t � }|j D ]\}}|d u r[|� � } n||�} |� | � qN|rn|t |��} nd} d� | �} t�| � d} t � } |j D ],\}}|j|v r�| � |j� | d } |r�| |j� d|j� d� } n| d } | |� � } q�| D ]} || j}| d| � |� �7 } q�| d d d d d } t�| � td�S ) Nz)Installation error reported with no causec s* g | ]}t |jt�r|j�� j�s|�qS rE )� isinstancer? r: r� ra )r[ r� rr rE rF r� � s � ��z2Factory.get_installation_error.<locals>.<listcomp>zSequence[ConflictCause]r+ r �partsrY c S s2 t | �dkr | d S d�| d d� �d | d S )Nr+ r r� ���z and )r� r� )r rE rE rF � text_join� s z1Factory.get_installation_error.<locals>.text_joinr@ c S sF | � � }|r |js| j� d| j� �S t|jt�r t|jj�S t|j�S )Nr� )�get_install_requirementr� r� r� r r$ rL )r@ r� rE rE rF �describe_trigger� s z8Factory.get_installation_error.<locals>.describe_triggerzthe requested packageszOCannot install {} because these package versions have conflicting dependencies.z The conflict is caused by:z � z depends on zThe user requested z% The user requested (constraint) z z To fix this you could try to: z91. loosen the range of package versions you've specified z92. remove package versions to allow pip attempt to solve zthe dependency conflict z�ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/topics/dependency-resolution/#dealing-with-dependency-conflicts)r� r� r r� r� r r rL r, r� r� r� r� �formatr� r� r� r� r� r )rn r� rJ �requires_python_causesr� r@ r r �triggers�triggerr� rz �relevant_constraints�key�specrE rr rF �get_installation_error~ sp �� � ������ �z Factory.get_installation_errorrq )rE );rA rB rC r r" r& r r r� r rM rp �propertyrT r r{ r1 r rL r3 r� r r$ r, r� r r- r� r r r( r r r� r/ r r� r. r� r r� r� r rH r� r9 r� r� r� r r� r� r r� r r r r r rE rE rE rF rN Y s< �������� � � � �( �� � ��� ������ �J����� �a�� ���� ������ �F�� � � � � � ���� � � � �� � � ��� �� ��rN )]r� r� �logging�typingr r r r r r r r r r r r r r �"pip._vendor.packaging.requirementsr � pip._vendor.packaging.specifiersr �pip._vendor.packaging.utilsr r �pip._vendor.resolvelibr �pip._internal.cacher r �pip._internal.exceptionsr r r r r r �"pip._internal.index.package_finderr �pip._internal.metadatar r �pip._internal.models.linkr �pip._internal.models.wheelr! � pip._internal.operations.preparer" � pip._internal.req.constructorsr# � pip._internal.req.req_installr$ r% � pip._internal.resolution.baser& �&pip._internal.utils.compatibility_tagsr' �pip._internal.utils.hashesr( � pip._internal.utils.packagingr) � pip._internal.utils.virtualenvr* r| r, r- r. r/ � candidatesr0 r1 r2 r3 r4 r5 r6 �found_candidatesr7 r8 rI r9 r: r; r< r= r> � getLoggerrA r� rG �CacherH rN rE rE rE rF �<module> sD @ $
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