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Raises `_NotHTTP` if the URL is not available for a HEAD request, or
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c C@ sp t | � r t | d | �n t j d t | � � | j | d i d d 6d d 6�} | j � t | � | S( s Access an HTML page with GET, and return the response.
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Return whether the given Python version is compatible with a link's
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major-minor-micro version to check.
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value if the given Python version isn't compatible.
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Responsible for evaluating links for a particular project.
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:param project_name: The user supplied package name.
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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
to False.
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Determine whether a link is a candidate for installation.
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version string if `is_candidate` is True, and (2) if
`is_candidate` is False, an optional string to log the reason
the link fails to qualify.
s <none given>u yanked for reason: {}s
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Filter out candidates whose hashes aren't allowed, and return a new
list of candidates.
If at least one candidate has an allowed hash, then all candidates with
either an allowed hash or no hash specified are returned. Otherwise,
the given candidates are returned.
Including the candidates with no hash specified when there is a match
allows a warning to be logged if there is a more preferred candidate
with no hash specified. Returning all candidates in the case of no
matches lets pip report the hash of the candidate that would otherwise
have been installed (e.g. permitting the user to more easily update
their requirements file with the desired hash).
sJ Given no hashes to check %s links for project %r: discarding no candidatesi t hashesi s discarding no candidatess discarding {} non-matches:
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c s@ s | ] } t | j � Vq d S( N( R{ Rm ( t .0t candidate( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pys <genexpr>� s sP Checked %s links for project %r against %s hashes (%s matches, %s no digest): %s( Rj Rk RB t listRm t has_hasht is_hash_allowedt appendR� R� t digest_count(
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Encapsulates some of the preferences for filtering and sorting
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Responsible for filtering and sorting candidates for installation based
on what tags are valid.
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C@ sj | d k r t � } n | d k r3 t j � } n | j � } | d | d | d | d | d | d | � S( s@ Create a CandidateEvaluator object.
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R� R� t specifierR� R� R� N( RC R R t SpecifierSetR� ( t clsR� R� R� R� R� R� R� ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyt create" s c C@ s: | | _ | | _ | | _ | | _ | | _ | | _ d S( s�
:param supported_tags: The PEP 425 tags supported by the target
Python in order of preference (most preferred first).
N( t _allow_all_prereleasest _hashest _prefer_binaryt
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_specifiert _supported_tags( RR R� R� R� R� R� R� ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyRO D s c C@ s� | j p d } | j } d � | j d � | D� d | �D� } g | D]! } t | j � | k rH | ^ qH } t d | d | j d | j � S( sM
Return the applicable candidates from a list of candidates.
c S@ s h | ] } t | � � q S( ( R{ ( R� t v( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pys <setcomp>e s c s@ s | ] } t | j � Vq d S( N( R{ R� ( R� t c( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pys <genexpr>m s t prereleasesR� R� R� N( R� RC R� t filterR{ R� R� R� R� ( RR R� t allow_prereleasesR� t versionsR� t applicable_candidates( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyt get_applicable_candidatesY s
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Create and return a `FoundCandidates` instance.
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versions.
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Function to pass as the `key` argument to a call to sorted() to sort
InstallationCandidates by preference.
Returns a tuple such that tuples sorting as greater using Python's
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.
If finding wheels, then the sort order is by version, then:
1. existing installs
2. wheels ordered via Wheel.support_index_min(self._supported_tags)
3. source archives
If prefer_binary was set, then all wheels are sorted above sources.
Note: it was considered to embed this logic into the Link
comparison operators, but then different sdist links
with the same version, would have to be considered equal
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Return the best candidate per the instance's sort order, or None if
no candidate is acceptable.
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Reason for being yanked: {reason}R� Rn N( RC t maxR� Rm R� R� R� Rj t warning( RR R� t best_candidateRm Rn t msg( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyt get_best_candidate� s N( RS RT R� t classmethodRC RJ R� RO R� R� R� R� ( ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyR� s $ <c B@ s2 e Z d Z d � Z d � Z d � Z d � Z RS( s� A collection of candidates, returned by `PackageFinder.find_candidates`.
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c C@ s | | _ | | _ | | _ d S( s
:param candidates: A sequence of all available candidates found.
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candidates by order of preference.
N( t _applicable_candidatest _candidatest
_evaluator( RR R� R� R� ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyRO � s
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( t iterR� ( RR ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyt iter_all s c C@ s
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( R� R� ( RR ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyt iter_applicable
s c C@ s" t | j � � } | j j | � S( sd Return the best candidate available, or None if no applicable
candidates are found.
( R� R� R� R� ( RR R� ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyt get_best s ( RS RT R� RO R� R� R� ( ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyR6 � s
c B@ s e Z d Z d d d d d � Z e d d d d � � Z e d � � Z e d � � Z e d � � Z
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c C@ s� | d k r g } n | d k r- t � } n | pE t t � t � � } | | _ | | _ | | _ | | _ | | _ | | _ | | _
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This constructor is primarily meant to be used by the create() class
method and from tests.
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:param format_control: A FormatControl object, used to control
the selection of source packages / binary packages when consulting
the index and links.
:param candidate_prefs: Options to use when creating a
CandidateEvaluator object.
N(
RC R� R t setR� t _candidate_prefsR� R� t search_scopeRb t format_controlt
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_logged_links( RR R� Rb R� R� R� R� t candidate_prefsR� ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyRO s c C@ s� | d k r t d � � n | d k r3 t � } n t d | j d | j � } | d | d | d | d | d | j d | j d
| d | j � S(
s Create a PackageFinder.
:param selection_prefs: The candidate selection preferences, as a
SelectionPreferences object.
:param trusted_hosts: Domains not to emit warnings for when not using
HTTPS.
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:param target_python: The target Python interpreter to use when
checking compatibility. If None (the default), a TargetPython
object will be constructed from the running Python.
sE PackageFinder.create() missing 1 required keyword argument: 'session'R� R� R R� Rb R� R� R� R� R� N( RC Rs R R� R� R� R� R� R� ( R� R� t selection_prefsR� Rb R� R ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyR� O s" c C@ s
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find_links( RR ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyR | s c C@ s
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index_urls( RR ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyR � s c C@ s
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:param source: An optional source string, for logging where the host
string came from.
s adding trusted host: {!r}s
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c c@ s< x t D] } | Vq Wx | j D] } d | d f Vq Wd S( NR9 ( t SECURE_ORIGINSR� ( RR t
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c @ sn g � g � � � f d � } xC| D];} t j j | � } | j d � } | sX | r4| rg | } n t | � } t j j | � r| r� t j j | � } x_ t j | � D] } | t j j | | � � q� Wq1| r� � j | � q1t
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Sort locations into "files" (archives) and "urls", and return
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s Find all available InstallationCandidate for project_name
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R� R� R� ( RE RF R� ( RR R� R� R� R� t candidate_evaluator( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyt find_candidates� s c C@ s� | j d t � } | j | j d | j d | �} | j � } d } | j d k ri t | j j � } n d � } | d k r� | d k r� t
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Rn t projectRm R� N( R� R\ RC R R� R{ ( RR R@ Rm t is_candidatet result( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyt get_install_candidate$ s c C@ sR g } xE | j | � D]4 } | j | | � } | d k r | j | � q q W| S( N( R[ R` RC R� ( RR R@ RX R_ Rm R� ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyR4 8 s N( RS RT R� RC RO R� R� t propertyR R R� R R R t staticmethodRJ R R- R/ RE RF RH RU R5 R[ R\ R` R4 ( ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyR7 s< && 9 J F O c C@ se xF t | � D]8 \ } } | d k r+ q
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s .//baset hrefN( t findallRW RC ( t documentt page_urlt baseRh ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyt _determine_base_urlp s
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Convert an anchor element in a simple repository page to a Link.
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comes_fromR� R� N( RW RC Ry R^ Rz R R ( t anchorRk t base_urlRh RD t pyrequireR� Rm ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyt _create_link_from_element� s R c B@ s, e Z d Z d d � Z d � Z d � Z RS( s' Represents one page, along with its URLc C@ s | | _ | | _ | | _ d S( N( R� RD RV ( RR R� RD RV ( ( s2 /tmp/pip-install-ewDPok/pip/pip/_internal/index.pyRO � s c C@ s
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