Ë
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ñúhü] ã óº d Z ddlmZ ddlZddlZddlmZ ddlmZ ddl m
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Z
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ddl m Z ddl mZ dd lmZ dd
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lmZ dd lmZmZmZmZmZmZmZ dd lm Z dd l m Z ddl m Z ddl!m"Z" ddl#m$Z$ ddl%m&Z&m'Z' ddl(m)Z) ddl*m+Z+m,Z, ddl-m.Z. ddl/m0Z0 ddl1m2Z2 ddl3m4Z4 ddl5m6Z6 ddl7m8Z8 ejr e:« Z;ee e< e=e& f Z> d d dZ? G d d e+« Z@y) ay Dependency Resolution
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|
The dependency resolution in pip is performed as follows:
|
|
for top-level requirements:
|
a. only one spec allowed per project, regardless of conflicts or not.
|
otherwise a "double requirement" exception is raised
|
b. they override sub-dependency requirements.
|
for sub-dependencies
|
a. "first found, wins" (where the order is breadth first)
|
é )Ú annotationsN)Ú defaultdict)ÚIterable)Úchain)ÚOptional)Ú
|
specifiers)Ú Requirement)Ú
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WheelCache)ÚBestVersionAlreadyInstalledÚDistributionNotFoundÚ HashErrorÚ
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HashErrorsÚInstallationErrorÚNoneMetadataErrorÚUnsupportedPythonVersion)Ú PackageFinder)ÚBaseDistribution)ÚLink)ÚWheel)ÚRequirementPreparer)ÚInstallRequirementÚ check_invalid_constraint_type)ÚRequirementSet)Ú BaseResolverÚInstallRequirementProvider)Úcompatibility_tags)Ú get_supported)Údirect_url_from_link)Ú
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indent_log)Únormalize_version_info)Úcheck_requires_pythonc óâ t | j « } t ||¬« }|rydj t t |« « }|r#t j d| j ||« yt d| j d| d|« # t $ r}t | t |« « d}~ww xY w# t
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j $ r+}t j d| j |« Y d}~yd}~ww xY w) aÇ
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Check whether the given Python version is compatible with a distribution's
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"Requires-Python" value.
|
|
:param version_info: A 3-tuple of ints representing the Python
|
major-minor-micro version to check.
|
:param ignore_requires_python: Whether to ignore the "Requires-Python"
|
value if the given Python version isn't compatible.
|
|
:raises UnsupportedPythonVersion: When the given Python version isn't
|
compatible.
|
N)Ú version_infoz-Package %r has an invalid Requires-Python: %sú.zBIgnoring failed Requires-Python check for package %r: %s not in %rzPackage z requires a different Python: z not in )ÚstrÚrequires_pythonÚFileNotFoundErrorr r! r ÚInvalidSpecifierÚloggerÚwarningÚraw_nameÚjoinÚmapÚdebugr )Údistr# Úignore_requires_pythonr& ÚeÚ is_compatibleÚexcÚversions ú[H:\Change_password\venv_build\Lib\site-packages\pip/_internal/resolution/legacy/resolver.pyÚ_check_dist_requires_pythonr6 : sð ð(.Ü d× 2Ñ 2Ó3ð Ü-Ø Ø%ô
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Z dd Z dd Z dd Z xZS )ÚResolverzResolves which packages need to be installed/uninstalled to perform the requested operation without breaking the requirements of any package.
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> Úeagerúonly-if-neededúto-satisfy-onlyc óF t | « |
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| j v sJ | t j d d } n t | « } | | _ || _ || _ || _ |
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| | _ || _ || _ || _ || _ || _ t# t$ « | _ y )Né )ÚsuperÚ__init__Ú_allowed_strategiesÚsysr# r Ú_py_version_infoÚpreparerÚfinderÚ wheel_cacheÚupgrade_strategyÚforce_reinstallÚignore_dependenciesÚignore_installedr0 Ú use_user_siteÚ_make_install_reqr ÚlistÚ_discovered_dependencies) ÚselfrC rD rE Úmake_install_reqrJ rH rI r0 rG rF Úpy_version_infoÚ __class__s r5 r? zResolver.__init__w s© ø ô ÑÔØ 4×#;Ñ#;Ñ;Ð;Ð;à Ð "Ü !× .Ñ .¨r°Ð 2Oä 4°_Ó EOà /Ô à Ø Ø&Ôà 0Ô Ø .Ô Ø#6Ô Ø 0Ô Ø&<Ô#Ø *ÔØ!1Ô ä@KÌDÓ@QÕ%ó c ót t |¬« }|D ]+ }|j r t |« | j ||« - g }t « }t |j |« D ]$ } |j | j ||« « & |r||S # t $ r"}||_
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|j |« Y d}~Sd}~ww xY w)a± Resolve what operations need to be done
|
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As a side-effect of this method, the packages (and their dependencies)
|
are downloaded, unpacked and prepared for installation. This
|
preparation is done by ``pip.operations.prepare``.
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|
Once PyPI has static dependency metadata available, it would be
|
possible to move the preparation to become a step separated from
|
dependency resolution.
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)Úcheck_supported_wheelsN) r Ú
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constraintr Ú_add_requirement_to_setr r Úall_requirementsÚextendÚ _resolve_oner ÚreqÚappend)rN Ú root_reqsrT Úrequirement_setrZ Údiscovered_reqsÚ hash_errorsr3 s r5 ÚresolvezResolver.resolve s ô )Ð@VÔWØ ò ?CØ~~Ü-¨cÔ2Ø × (Ñ (¨ ¸#Õ >ð ?ð 57Ü l Ü ×9Ñ9¸?ÓKò (Cð (Ø ×&Ñ& t×'8Ñ'8¸ È#Ó'NÕOð (ñ Ø Ð à Ð øô ò (Ø Ø×"Ñ" 3×'Ñ'ûð (ús Á#!B  B7ÂB2Â2B7c óÒ |j |« s/t j d|j |j « g dfS |j
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j « }t j « }|j r)|j |« st |j d« |j r |J d« |j s|j |« |gdfS |j! |j « }|du xrw |xrs |j$ xrd |j& |j& k( xrI |j( xr; |j( xr- |j( j* |j( j* k7 }|r t d| d| d|j d« |s|j- |« |g|fS |j$ s |j$ sg |fS |j
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j. k( } | rt d |j d
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« d |_ |j rd |_ t1 t3 t5 |j& « t5 |j& « z « « |_ t j7 d ||j& « |g|fS # t" $ r d}Y Çw xY w)a& Add install_req as a requirement to install.
|
|
:param parent_req_name: The name of the requirement that needed this
|
added. The name is used because when multiple unnamed requirements
|
resolve to the same name, we could otherwise end up with dependency
|
links that point outside the Requirements set. parent_req must
|
already be added. Note that None implies that this is a user
|
supplied requirement, vs an inferred one.
|
:param extras_requested: an iterable of extras used to evaluate the
|
environment markers.
|
:return: Additional requirements to scan. That is either [] if
|
the requirement is not applicable, or [install_req] if the
|
requirement is applicable and has just been added.
|
z6Ignoring %s: markers '%s' don't match your environmentNz+ is not a supported wheel on this platform.z+a user supplied req shouldn't have a parentzDouble requirement given: z (already in z, name=ú)z#Could not satisfy constraints for 'zC': installation from path or url cannot be constrained to a versionFTzSetting %s extras to: %s) Ú match_markersr) ÚinfoÚnameÚmarkersÚlinkÚis_wheelr Úfilenamer r rT Ú supportedr Ú user_suppliedÚadd_unnamed_requirementÚget_requirementÚKeyErrorrU ÚextrasrZ Ú specifierÚadd_named_requirementÚpathÚtupleÚsortedÚsetr. )
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rN r] Ú install_reqÚparent_req_nameÚextras_requestedÚwheelÚtagsÚ existing_reqÚhas_conflicting_requirementÚdoes_not_satisfy_constraints
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r5 rV z Resolver._add_requirement_to_set s ð, ×(Ñ(Ð)9Ô:Ü KKØHØ× Ñ Ø×#Ñ#ô ð
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t8Oð × Ò × 0Ñ 0× 9Ò 9Ü+×*Ñ*×3Ñ3Ó4EÜ%×3Ñ3Ó5DØ ×5Ò5¸e¿o¹oÈdÔ>SÜ'Ø ~~Ð&Ð&QÐRóð ð ×)Ò)¨_Ð-Dð 9à 8ó 9Ø Dð
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× Ò Ø × 3Ñ 3°KÔ @Ø = $Ð&Ð &ð Ø6E×6UÑ6UØ× Ñ ó7Lð tÐ #ò HØ ò Hà ×+Ñ+Ð+ò Hð ×#Ñ# {×'9Ñ'9Ñ9ò Hð × Ñ ò Hð
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ò Hð × Ñ ×*Ñ*¨k¯o©o×.GÑ.GÑGð $ñ 'Ü#Ø,¨[¨Mð : Ø +n¨G°K×4DÑ4DÐ3GÀqðJóð ñ Ø × 1Ñ 1°+Ô >à = +Ð-Ð -ð × !Ò !¨ ×)@Ò)@Ø|Ð#Ð #à&1×&6Ñ&6ò '
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Ø × Ñ Ò Q +×"2Ñ"2×"7Ñ"7¸<×;LÑ;L×;QÑ;QÑ"Qð<
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Ð#ñ 'Ü#Ø5°k×6FÑ6FÐ5Gð H+ð +óð ð #( Ô ð × $Ò $Ø)-LÔ &Ü #Ü 3|×*Ñ*Ó+¬c°+×2DÑ2DÓ.EÑEÓ Fó
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Ôô Ø &Ø Ø × Ñ ô
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ð ~|Ð+Ð+øôq ò Ø Lð ús ÄK Ë K&Ë%K&c ó | j dk( ry| j dk( ry| j dk( sJ |j xs |j S )Nr; Fr9 Tr: )rF rk rU ©rN rZ s r5 Ú_is_upgrade_allowedz Resolver._is_upgrade_allowed5 sO Ø × Ñ Ð$5Ò 5ØØ × "Ñ " gÒ -Øà×(Ñ(Ð,<Ò<Ð <Ð<Ø×$Ñ$Ò6¨¯©Ð 6rR c ó |j J | j r|j j rd|_ d|_ y)z4
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Set a requirement to be installed.
|
NT)Ú satisfied_byrJ Ú in_usersiteÚshould_reinstallr s r5 Ú_set_req_to_reinstallz Resolver._set_req_to_reinstall> s= ð × Ñ Ð+Ð+Ð+Ø×!Ò! S×%5Ñ%5×%AÒ%AØ#'CÔ Ø ÕrR c ó | j ry|j | j « |j sy| j r| j |« y| j |« s| j dk( ryy|j s | j j |d¬« | j |« y# t $ r Y yt $ r Y 'w xY w)a Check if req_to_install should be skipped.
|
|
This will check if the req is installed, and whether we should upgrade
|
or reinstall it, taking into account all the relevant user options.
|
|
After calling this req_to_install will only have satisfied_by set to
|
None if the req_to_install is to be upgraded/reinstalled etc. Any
|
other value will be a dist recording the current thing installed that
|
satisfies the requirement.
|
|
Note that for vcs urls and the like we can't assess skipping in this
|
routine - we simply identify that we need to pull the thing down,
|
then later on it is pulled down and introspected to assess upgrade/
|
reinstalls etc.
|
|
:return: A text reason for why it was skipped, or None.
|
Nr: z#already satisfied, skipping upgradezalready satisfiedT)Úupgradezalready up-to-date) rI Úcheck_if_existsrJ r rG r
r rF rg rD Úfind_requirementr r )rN Úreq_to_installs r5 Ú_check_skip_installedz Resolver._check_skip_installedI sÈ ð$ × Ò Øà×&Ñ& t×'9Ñ'9Ô:Ø ×*Ò*Øà × Ò Ø × &Ñ & ~Ô 6Øà×'Ñ'¨Ô7Ø×$Ñ$Ð(8Ò8Ø<Ø&ð
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×"Ò"ð Ø ×,Ñ,¨^ÀTÐ,ÔJð ×"Ñ" >Ô2Øøô /ò ,á+Ü'ò ñ ð ús  B2 Â2 CÂ=CÃCc óð | j |« }| j j ||« }|sy |j }|j r-|j
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xs d}d| d| }t j |« |S )Nz <none given>zDThe candidate selected for download or install is a yanked version: z
|
Reason for being yanked: )r rD r rg Ú is_yankedÚ yanked_reasonr) r* )rN rZ r Úbest_candidaterg ÚreasonÚmsgs r5 Ú_find_requirement_linkz Resolver._find_requirement_link} s Ø×*Ñ*¨3Ó/Ø ×5Ñ5°c¸7ÓCÙ Øð ×"Ñ"Ø >>Ø×'Ñ'Ò9¨>Fð
|
#Ø#1Ð"2ð 3,Ø,2¨8ð5ð ô NN3Ô à rR c ó |j | j |« |_ | j | j j ry|j J d« | j j |j |j t « ¬« }|«t j d|j « |j |j u r |j r|j |_ |j |j |_ n&t |j |j ¬« |_ |j |_ yy)af Ensure that if a link can be found for this, that it is found.
|
|
Note that req.link may still be None - if the requirement is already
|
installed and not needed to be upgraded based on the return value of
|
_is_upgrade_allowed().
|
|
If preparer.require_hashes is True, don't use the wheel cache, because
|
cached wheels, always built locally, have different hashes than the
|
files downloaded from the index server and thus throw false hash
|
mismatches. Furthermore, cached wheels at present have undeterministic
|
contents due to file modification times.
|
Nz1_find_requirement_link unexpectedly returned None)rg Ú package_nameÚsupported_tagszUsing cached wheel link: %s)Úlink_is_in_wheel_cache)rg r rE rC Úrequire_hashesÚget_cache_entryre r r) r. Ú original_linkÚ
|
persistentÚcached_wheel_source_linkÚoriginÚ download_infor )rN rZ Ú cache_entrys r5 Ú_populate_linkzResolver._populate_link s ð 88Ð Ø×2Ñ2°3Ó7CHà × Ñ Ð # t§}¡}×'CÒ'CØ àxxÐ#ÐXÐ%XÓXÐ#Ø×&Ñ&×6Ñ6ØØ Ü(?ð 7ó
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ð
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Ð "Ü LLÐ6¸ ×8HÑ8HÔ IØxx3×,Ñ,Ñ,°×1GÒ1GØ/2¯x©xÔ,Ø×!Ñ!Ð-Ø$/×$6Ñ$6Õ!ô %9ØHH°[×5KÑ5Kô%Ô!ð #×'Ñ'CHð #rR c ó |j r| j j |« S |j J | j |« }|j r | j j ||« S | j |« | j j |« }| j s|j | j « |j rq| j dk7 xs5 | j xs' | j xs |j j dk( }|r| j |« |S t j# d|« |S )zzTakes a InstallRequirement and returns a single AbstractDist representing a prepared variant of the same.
|
r; Úfilez<Requirement already satisfied (use --upgrade to upgrade): %s)ÚeditablerC Ú prepare_editable_requirementr r Ú prepare_installed_requirementr Úprepare_linked_requirementrI r rJ rF rG rg Úschemer
r) rd )rN rZ Ú skip_reasonr/ Ú should_modifys r5 Ú _get_dist_forzResolver._get_dist_forº s, ð <<Ø==×=Ñ=¸cÓBÐ Bð × Ñ Ð'Ð'Ð'Ø×0Ñ0°Ó5 à × Ò Ø==×>Ñ>¸sÀKÓPÐ Pð ×ÑCÔ Ø}}×7Ñ7¸Ó<ð ×$Ò$Ø × Ñ × 2Ñ 2Ô 3à × Ò à×%Ñ%Ð):Ñ:ò -Ø×'Ñ'ò-à×(Ñ(ò-ð 88?? fÑ,ð ñ Ø×*Ñ*¨3Ô/ð ô ØRØôð rR c ó¶ j s j rg S d_ j « }t | j j
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« }|D ]. }t j' d|j( |j* |« 0 t! t# |j% « « t# j « z « }|j- |« D ] } |||¬ « ddd« S # 1 sw Y S xY w) zxPrepare a single requirements file.
|
|
:return: A list of additional InstallRequirements to also install.
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T)r# r0 c óê j t | « « }j } j |||¬« \ }}|r |r j | j |« j |« y )N)rw rx )rK r% re rV rM r[ rX )
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|
r5 Úadd_reqz&Resolver._resolve_one.<locals>.add_req s{ ø ð #× 4Ñ 4´S¸³[À.Ó QOØ ,× 1Ñ 1OØ+/×+GÑ+GØ Ø Ø /Ø!1ð ,Hó ,Ñ (M=ñ ¡=Ø×-Ñ-¨oÑ>×EÑEÀmÔTØ × Ñ ]Õ +rR N)rw z!Installing extra requirements: %rú,z%%s %s does not provide the extra '%s')rx )r¬ r rx z Iterable[str]ÚreturnÚNone)rU Úpreparedr© r6 rB r0 r re Úhas_requirementrk rV rH ro r) r. r, rt ru Úiter_provided_extrasr* r+ r4 Úiter_dependencies)
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rN r] r r/ r± Úmissing_requestedÚmissingÚavailable_requestedr¬ r° s
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``` @r5 rY zResolver._resolve_oneè sÒ û ð × $Ò $¨×(?Ò(?ØIà"&Ô ð ×!Ñ! .Ó1ô $Ø Ø ×.Ñ.Ø#'×#>Ñ#>õ
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ð /1 ÷ ,ð ,ô \ñ " Jð "×&Ñ&Ð2Ð 2Ð2Ø"×2Ñ2°>×3FÑ3FÔGð &×3Ò3Ð3Ð3Ø×,Ñ,Ø# ^ÀTð -ô ð ×+Ò+Ø!×(Ò(ÜLLØ;Ø ×!6Ñ!6Ó7ôô %+Ü×-Ñ-Ó.´°T×5NÑ5NÓ5PÓ1QÑQó%Ð!ð 1ò GÜNNØ?Ø Ø Ø õ ðô '-Ü×1Ñ1Ó3Ó4´s¸>×;PÑ;PÓ7QÑQó'Ð#ð #× 4Ñ 4Ð5HÓ Iò JFÙFÐ5HÖIðJ÷C" JðH Ð÷I" JðH Ðús Á.EGÇGc ó g t « d fd |j j « D ]
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} |« S )zäCreate the installation order.
|
|
The installation order is topological - requirements are installed
|
before the requiring thing. We break cycles at an arbitrary point,
|
and make no other guarantees.
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