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PackageFinder Flink version_infoignore_requires_pythonreturnc C s~ z t | j|d}W n tjy td| j| Y dS w |s=dtt|}|s4t d|| j| dS td|| j| dS )aa
Return whether the given Python version is compatible with a link's
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:param project_name: The user supplied package name.
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with 'binary' or 'source' or both in it.
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evaluating link compatibility. This is used, for example, to
check wheel compatibility, as well as when checking the Python
version, e.g. the Python version embedded in a link filename
(or egg fragment) and against an HTML link's optional PEP 503
"data-requires-python" attribute.
:param allow_yanked: Whether files marked as yanked (in the sense
of PEP 592) are permitted to be candidates for install.
:param ignore_requires_python: Whether to ignore incompatible
PEP 503 "data-requires-python" values in HTML links. Defaults
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Determine whether a link is a candidate for installation.
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the link fails to qualify.
Nz Fzyanked for reason: )Fz
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yanked_reason egg_fragmentextsplitextr" rA r formatr9 pathr filenamer r namer? rB get_tags supportedget_formatted_file_tagsr0 r5 _extract_version_from_fragment_py_version_researchstartgroup
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Filter out candidates whose hashes aren't allowed, and return a new
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Encapsulates some of the preferences for filtering and sorting
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r$ zA collection of candidates, returned by `PackageFinder.find_best_candidate`.
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:param candidates: A sequence of all available candidates found.
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Responsible for filtering and sorting candidates for installation based
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NFr9 r< r r specifierrn r* c C s: |du rt }|du rt }| }| ||||||dS )a Create a CandidateEvaluator object.
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N)r9 r` r r r rn )r r SpecifierSetrS )clsr9 r< r r r rn r` r& r& r6 createw s zCandidateEvaluator.creater` c C s< || _ || _|| _|| _|| _|| _dd t|D | _dS )z
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Return the applicable candidates from a list of candidates.
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s z@CandidateEvaluator.get_applicable_candidates..)rm rn r9 key)r r filterr r r sorted _sort_key)rC rm allow_prereleasesr r filtered_applicable_candidatesr& r r6 get_applicable_candidates s
z,CandidateEvaluator.get_applicable_candidatesrq c
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Function to pass as the `key` argument to a call to sorted() to sort
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default comparison operator are more preferred.
The preference is as follows:
First and foremost, candidates with allowed (matching) hashes are
always preferred over candidates without matching hashes. This is
because e.g. if the only candidate with an allowed hash is yanked,
we still want to use that candidate.
Second, excepting hash considerations, candidates that have been
yanked (in the sense of PEP 592) are always less preferred than
candidates that haven't been yanked. Then:
If not finding wheels, they are sorted by version only.
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1. existing installs
2. wheels ordered via Wheel.support_index_min(self._supported_tags)
3. source archives
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r& r zB{} is not a supported wheel for this platform. It can't be sorted.rI Nz ^(\d+)(.*)$)r rt r' is_wheelr rQ find_most_preferred_tagr
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Nr )maxr )rC rm r r& r& r6 sort_best_candidate s z&CandidateEvaluator.sort_best_candidatec C s" | |}| |}t|||dS )zF
Compute and return a `BestCandidateResult` instance.
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Nlink_collectorr< r= format_controlcandidate_prefsr) r* c C sP |du rt }|ptt t }|| _|| _|| _|| _|| _|| _t | _ dS )a
This constructor is primarily meant to be used by the create() class
method and from tests.
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the index and links.
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N)
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_logged_links)rC r r< r= r r r) r& r& r6 rD C s zPackageFinder.__init__selection_prefsc C s8 |du rt }t|j|jd}| ||||j|j|jdS )af Create a PackageFinder.
:param selection_prefs: The candidate selection preferences, as a
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checking compatibility. If None (the default), a TargetPython
object will be constructed from the running Python.
N)r r )r r r< r= r r) )r r r r r= r r) )r r r r< r r& r& r6 r j s zPackageFinder.createc C s | j S re )rB r r& r& r6 r< s zPackageFinder.target_pythonc C | j jS re r search_scoper r& r& r6 r zPackageFinder.search_scoper c C s || j _d S re r )rC r r& r& r6 r s c C r re )r
find_linksr r& r& r6 r r zPackageFinder.find_linksc C r re )r
index_urlsr r& r& r6 r r zPackageFinder.index_urlsc c s | j jjD ]}t| V qd S re )r sessionpip_trusted_originsr )rC host_portr& r& r6
trusted_hosts s zPackageFinder.trusted_hostsc C r re r r r r& r& r6 r r z#PackageFinder.allow_all_prereleasesc C d| j _d S NTr r r& r& r6 set_allow_all_prereleases z'PackageFinder.set_allow_all_prereleasesc C r re r r r r& r& r6 r r zPackageFinder.prefer_binaryc C r r r r r& r& r6 set_prefer_binary r z PackageFinder.set_prefer_binaryr9 c C s. t |}| j|}t|||| j| j| jdS )N)r9 r: r; r< r= r) )r r get_allowed_formatsr8 rB r> r@ )rC r9 r: r; r& r& r6 make_link_evaluator s z!PackageFinder.make_link_evaluatorlinksc C sP g g }}t }|D ]}||vr#|| |jr || q
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Returns elements of links in order, non-egg links first, egg links
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zPackageFinder._sort_linksr' r] c C s, || j vrtd|| | j | d S d S )NzSkipping link: %s: %s)r r. r/ r )rC r' r] r& r& r6 _log_skipped_link s
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If the link is a candidate for install, convert it to an
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)r] N)rR r' r5 )rd r r r9 )rC r r' is_candidateresultr& r& r6 get_install_candidate s z#PackageFinder.get_install_candidatec C s6 g }| |D ]}| ||}|dur|| q|S )zU
Convert links that are candidates to InstallationCandidate objects.
N)r r rx )rC r r rm r' rq r& r& r6 evaluate_links s
z PackageFinder.evaluate_links project_urlc C sj t d| | j|}|d u rg S tt|}t | j||d}W d |S 1 s.w Y |S )Nz-Fetching project page and analyzing links: %s)r )r. r/ r
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z!PackageFinder.process_project_url)maxsizec C s | |}| jj|tj| j|dd}tjdd |D }t |}tjdd |D }|
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d | || S ) a Find all available InstallationCandidate for project_name
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are accepted.
)r )r9 candidates_from_pagec s * | ]}|D ] }|d ur| V qqd S re )page_candidatesrp sourcesrH r& r& r6 rr z4PackageFinder.find_all_candidates..c s r re )
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from_iterableru r r r. isEnabledForloggingDEBUGr/ r0 ) rC r9 r collected_sourcespage_candidates_itr
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z!PackageFinder.find_all_candidatesr rn c C s" | j }tj|| j|j|j||dS )z*Create a CandidateEvaluator object to use.)r9 r< r r r rn )r r r rB r r )rC r9 r rn r r& r& r6 make_candidate_evaluator9 s z&PackageFinder.make_candidate_evaluatorc C s$ | |}| j|||d}||S )a Find matches for the given project and specifier.
:param specifier: An optional object implementing `filter`
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versions.
:return: A `BestCandidateResult` instance.
)r9 r rn )r r r )rC r9 r rn rm candidate_evaluatorr& r& r6 find_best_candidateJ s
z!PackageFinder.find_best_candidaterequpgradec C s |j dd}| j|j|j|d}|j}d}|jdur t|jj}dtt dt
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||j dS |r}t d||| tt d|j|| |S )zTry to find a Link matching req
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parse_version)r r& r& r6 _format_versionsv s z8PackageFinder.find_requirement.._format_versionszNCould not find a version that satisfies the requirement %s (from versions: %s)z%No matching distribution found for {}TzLExisting installed version (%s) is most up-to-date and satisfies requirementzUExisting installed version (%s) satisfies requirement (most up-to-date version is %s)z=Installed version (%s) is most up-to-date (past versions: %s)z)Using version %s (newest of versions: %s))rn r rR r r satisfied_byr r5 r r r2 r. criticalr r rO r/ r r ) rC r r
rn best_candidate_resultr installed_versionr best_installedr& r& r6 find_requirementa sd
z PackageFinder.find_requirement)NNNre )r* N)NN)2rf rg rh ri r r rl r r r rD r r r propertyr< r r setterr r2 r r r r r r r r r8 r r r r r r r r r lru_cacher r r r r r r$ r r r r& r& r& r6 r% < s
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0
r% fragmentr: c C sJ t | D ]\}}|dkr
qt| d| |kr| S qt| d| )a Find the separator's index based on the package's canonical name.
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have the same length as the egg info's name part. An example::
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>>> canonical_name = 'foo-bar'
>>> _find_name_version_sep(fragment, canonical_name)
8
-Nz does not match )r r r )r r: ir r& r& r6 _find_name_version_sep s r c C s@ z t | |d }W n
ty Y dS w | |d }|s dS |S )zParse the version string from a + filename
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rI N)r r )r r:
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pip._vendor.packaging.utilsr Z pip._vendor.packaging.versionr r
r pip._internal.exceptionsr r r r pip._internal.index.collectorr r pip._internal.models.candidater #pip._internal.models.format_controlr pip._internal.models.linkr !pip._internal.models.search_scoper $pip._internal.models.selection_prefsr "pip._internal.models.target_pythonr pip._internal.models.wheelr pip._internal.reqr Zpip._internal.utils._logr pip._internal.utils.filetypesr pip._internal.utils.hashesr pip._internal.utils.loggingr pip._internal.utils.miscr pip._internal.utils.packagingr! pip._internal.utils.unpackingr" pip._internal.utils.urlsr# __all__rf r. r r2 BuildTagr rl r7 r8 r r r$ r r% r rV r& r& r& r6 s~ $
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