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Package resource API
--------------------
A resource is a logical file contained within a package, or a logical
subdirectory thereof. The package resource API expects resource names
to have their path parts separated with ``/``, *not* whatever the local
path separator is. Do not use os.path operations to manipulate resource
names being passed into the API.
The package resource API is designed to work with normal filesystem packages,
.egg files, and unpacked .egg files. It can also work in a limited way with
.zip files and with custom PEP 302 loaders that support the ``get_data()``
method.
This module is deprecated. Users are directed to :mod:`importlib.resources`,
:mod:`importlib.metadata` and :pypi:`packaging` instead.
N) get_importer)utime)mkdirrenameunlinkTF)open)isdirsplit) yield_lines drop_commentjoin_continuation) platformdirs) packagingz&pkg_resources.extern.packaging.versionz)pkg_resources.extern.packaging.specifiersz+pkg_resources.extern.packaging.requirementsz&pkg_resources.extern.packaging.markersz$pkg_resources.extern.packaging.utils) z Python 3.5 or later is requiredzbpkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
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Used when there is an issue with a version or specifier not complying with
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5 SS 5 < SUR S5 < 3n U $ U $ ! [ a U $ f = f)a- Return this platform's maximum compatible version.
distutils.util.get_platform() normally reports the minimum version
of macOS that would be required to *use* extensions produced by
distutils. But what we want when checking compatibility is to know the
version of macOS that we are *running*. To allow usage of packages that
explicitly require a newer version of macOS, we must also know the
current version of the OS.
If this condition occurs for any other platform with a version in its
platform strings, this function should be extended accordingly.
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A<;A<)Grequire
run_script get_providerget_distributionload_entry_point
get_entry_mapget_entry_infoiter_entry_pointsresource_stringresource_streamresource_filenameresource_listdirresource_existsresource_isdirdeclare_namespace working_setadd_activation_listenerfind_distributionsset_extraction_pathcleanup_resourcesget_default_cache Environment
WorkingSetResourceManager Distribution Requirement
EntryPointResolutionErrorVersionConflictDistributionNotFound UnknownExtraExtractionErrorr parse_requirements
parse_version safe_name safe_version get_platformcompatible_platformsr split_sections
safe_extra to_filenameinvalid_markerevaluate_markerensure_directorynormalize_pathEGG_DIST BINARY_DIST SOURCE_DIST
CHECKOUT_DIST DEVELOP_DISTIMetadataProviderIResourceProvider FileMetadata PathMetadata EggMetadata
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89r rw c H \ rS rSrSrSr\S 5 r\S 5 rS r S r
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An already-installed version conflicts with the requested version.
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)rI ContextualVersionConflict)r required_byrI s r! with_context VersionConflict.with_context@ s'
KyyK>)($//r r N) r r r r r r propertyr r r r r r r r! rx rx + s? FI
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A VersionConflict that accepts a third parameter, the set of the
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) ry iX z&A requested distribution was not foundzSThe '{self.req}' distribution was not found and is required by {self.requirers_str}c U R S $ r rH r s r! r DistributionNotFound.req` r r c U R S $ r rH r s r! requirers DistributionNotFound.requirersd r r c \ U R ( d gSR U R 5 $ )Nzthe applicationz, )r rU r s r!
requirers_str"DistributionNotFound.requirers_strh s ~~$yy ((r c J U R R " S0 [ 5 D6$ r r r s r! r DistributionNotFound.reportn r r c " U R 5 $ r# )r r s r! __str__ DistributionNotFound.__str__q s {{} r r N)
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1 r ry c \ rS rSrSrSrg)rz iu z>Distribution doesn't have an "extra feature" of the given namer Nr r r r! rz rz u s Hr rz z{}.{}r r c U[ U ' g)zRegister `provider_factory` to make providers for `loader_type`
`loader_type` is the type or class of a PEP 302 ``module.__loader__``,
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returns an ``IResourceProvider`` for that module.
N)_provider_factories) loader_typeprovider_factorys r! r r s (8 $r c \ [ U [ 5 ( a3 [ R U 5 =( d [ [ U 5 5 S $ [ R U n[ USS5 n[ [ U5 " U5 $ ! [ a! [ U 5 [ R U n NMf = f)z?Return an IResourceProvider for the named module or requirementr
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gmmC() !9r c * SSS.R X 5 $ )Nppc)PowerPCPower_Macintosh)get)machines r! _macos_archr s 7 ; ;G MMr c N SSK Jn U " 5 n[ R S:X ar UR S5 ( d\ [ 5 n[ R " 5 S R SS5 nS[ US 5 [ US 5 [ U5 4- $ U$ ! [ a U$ f = f)
zReturn this platform's string for platform-specific distributions
XXX Currently this is the same as ``distutils.util.get_platform()``, but it
needs some hacks for Linux and macOS.
r )r rL rM _zmacosx-%d.%d-%sr ) sysconfigr rS rT
startswithrV r unamereplaceintr rX )r rY r r s r! rP rP s ' >D
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B$#B$zmacosx-(\d+)\.(\d+)-(.*)z darwin-(\d+)\.(\d+)\.(\d+)-(.*)c ~ U b Ub X:X a g[ R U5 nU( Ga [ R U 5 nU( dw [ R U 5 nU( aZ [ UR S5 5 nUR S5 < SUR S5 < 3nUS:X a US: d US:X a US: a gg UR S5 UR S5 :w d$ UR S
5 UR S
5 :w a g [ UR S5 5 [ UR S5 5 : a g gg ) zCan code for the `provided` platform run on the `required` platform?
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Tr rN r z10.3 z10.4Fr )rQ rR darwinVersionStringr rW )providedrequiredreqMacprovMac
provDarwindversion macosversions r! r r s 8+x/C
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SU 5 eU $ )z@Return a current distribution object for a Requirement or stringz-Expected string, Requirement, or Distribution)r r ru parser^ rt TypeErrorr s r! r_ r_ sV $ &$ $$D! dL ) )GNN Kr c 6 [ U 5 R X5 $ )zDReturn `name` entry point of `group` for `dist` or raise ImportError)r_ r` r rW r s r! r` r` s D ! 2 25 ??r c 6 [ U 5 R U5 $ )=Return the entry point map for `group`, or the full entry map)r_ ra )r rW s r! ra ra s D ! / / 66r c 6 [ U 5 R X5 $ zIs the named metadata a directory? (like ``os.path.isdir()``)Nr r$ s r! metadata_isdir IMetadataProvider.metadata_isdir2 r' r c g)z?List of metadata names in the directory (like ``os.listdir()``)Nr r$ s r! metadata_listdir"IMetadataProvider.metadata_listdir5 r' r c g)z=Execute the named script in the supplied namespace dictionaryNr )r namespaces r! r] IMetadataProvider.run_script8 r' r r N) r r r r r% r) r, r/ r2 r] r r r r! r r % s% J6D MNLr r c < \ rS rSrSrS rS rS rS rS r S r
S r g
) r i< z3An object that provides access to package resourcesc g)z\Return a true filesystem path for `resource_name`
`manager` must be an ``IResourceManager``Nr manager
resource_names r! get_resource_filename'IResourceProvider.get_resource_filename? r' r c g)zaReturn a readable file-like object for `resource_name`
`manager` must be an ``IResourceManager``Nr r9 s r! get_resource_stream%IResourceProvider.get_resource_streamD r' r c g)zeReturn a string containing the contents of `resource_name`
`manager` must be an ``IResourceManager``Nr r9 s r! get_resource_string%IResourceProvider.get_resource_stringI r' r c g)z,Does the package contain the named resource?Nr r; s r! has_resource IResourceProvider.has_resourceN r' r c g)z>Is the named resource a directory? (like ``os.path.isdir()``)Nr rE s r! ri IResourceProvider.resource_isdirQ r' r c g)z?List of resource names in the directory (like ``os.listdir()``)Nr rE s r! rg "IResourceProvider.resource_listdirT r' r r N) r r r r r r< r? rB rF ri rg r r r r! r r < s% =5
5
5
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jr S r
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jr SS jrS rSS jrS rSS jrS rS rS rSrg) rr iX zDA collection of active distributions on sys.path (or a similar list)Nc / U l 0 U l 0 U l 0 U l / U l Uc [
R nU H nU R U5 M g)z?Create working set from list of path entries (default=sys.path)N)entries
entry_keysby_key normalized_to_canonical_keys callbacksrS r add_entry)r rN entrys r! __init__WorkingSet.__init__[ sJ ,.) ?hhG E NN5 ! r c U " 5 n SSK Jn UR U5 U$ ! [ a Us $ f = f! [ a U R U5 s $ f = f)z!
Prepare the master working set.
r ) __requires__)__main__rX ImportErrorr\ rx _build_from_requirements)clswsrX s r!
_build_masterWorkingSet._build_masteri sb
U - > JJ| $ I >// = = >s # 5 22AAc @ U " / 5 n[ U5 nUR U[ 5 5 nU H nUR U5 M [ R
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Build a working set from a requirement spec. Rewrites sys.path.
N)r| resolverq addrS r rN rS )r\ req_specr] reqsdistsr rT s r! r[ #WorkingSet._build_from_requirements} s| W!(+
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jj r c U R R U/ 5 U R R U5 [ US5 H nU R X!S5 M g)a Add a path item to ``.entries``, finding any distributions on it
``find_distributions(entry, True)`` is used to find distributions
corresponding to the path entry, and they are added. `entry` is
always appended to ``.entries``, even if it is already present.
(This is because ``sys.path`` can contain the same value more than
once, and the ``.entries`` of the ``sys.path`` WorkingSet should always
equal ``sys.path``.)
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setdefaultrN r rm rb )r rT r s r! rS WorkingSet.add_entry sI
""5"- E"&ud3D HHT% ( 4r c R U R R UR 5 U:H $ )z9True if `dist` is the active distribution for its project)rP r r@ r r s r! __contains__WorkingSet.__contains__ s {{txx(D00r c U R R UR 5 nUcI U R R UR 5 nUb! X1l U R R U5 nUb X!; a [ X!5 eU$ )a Find a distribution matching requirement `req`
If there is an active distribution for the requested project, this
returns it as long as it meets the version requirement specified by
`req`. But, if there is an active distribution for the project and it
does *not* meet the `req` requirement, ``VersionConflict`` is raised.
If there is no active distribution for the requested project, ``None``
is returned.
)rP r r@ rQ rx )r r r
canonical_keys r! r WorkingSet.find sp {{sww' < = = A A#'' JM ('{{}5 !$, , r c ^^ UU4S jU 5 $ )zYield entry point objects from `group` matching `name`
If `name` is None, yields all entry points in `group` from all
distributions in the working set, otherwise only ones matching
both `group` and `name` are yielded (in distribution order).
c 3 ># U HC nUR T5 R 5 H nTb TUR :X d M Uv M ME g 7fr# )ra valuesr ).0r rT rW r s r! /WorkingSet.iter_entry_points.. sK
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SX' U R U v M! MH g7f)zYield distributions for non-duplicate projects in the working set
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8A A c U( a UR U R X$S9 Uc UR nU R R U/ 5 nU R R UR / 5 nU( d UR
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5 U R U5 g)a Add `dist` to working set, associated with `entry`
If `entry` is unspecified, it defaults to the ``.location`` of `dist`.
On exit from this routine, `entry` is added to the end of the working
set's ``.entries`` (if it wasn't already present).
`dist` is only added to the working set if it's for a project that
doesn't already have a distribution in the set, unless `replace=True`.
If it's added, any callbacks registered with the ``subscribe()`` method
will be called.
r N)
insert_onrN locationrO rh r@ rP r utilscanonicalize_namerQ r
_added_new)r r rT insertr keyskeys2normalized_names r! rb WorkingSet.add s NN4<<N @ =MME))%4**4=="=488t{{2 $ DHH #//;;DHHE=AXX))/: 884 KK ! 885 LL " r c [ U5 SSS2 n0 n0 n/ n[ 5 n [ R " [ 5 n
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H. nX R U R 5 U R X' M0 SXk' U( a M U$ )a6 List all distributions needed to (recursively) meet `requirements`
`requirements` must be a sequence of ``Requirement`` objects. `env`,
if supplied, should be an ``Environment`` instance. If
not supplied, it defaults to all distributions available within any
entry or distribution in the working set. `installer`, if supplied,
will be invoked with each requirement that cannot be met by an
already-installed distribution; it should return a ``Distribution`` or
``None``.
Unless `replace_conflicting=True`, raises a VersionConflict exception
if
any requirements are found on the path that have the correct name but
the wrong version. Otherwise, if an `installer` is supplied it will be
invoked to obtain the correct version of the requirement and activate
it.
`extras` is a list of the extras to be used with these requirements.
This is important because extra requirements may look like `my_req;
extra = "my_extra"`, which would otherwise be interpreted as a purely
optional requirement. Instead, we want to be able to assert that these
requirements are truly required.
Nr r T)
list
_ReqExtras collections defaultdictsetpop markers_pass
_resolve_distrz extrasextendrb project_name)r requirementsenv installerreplace_conflictingr processedbest to_activate
req_extrasr r r new_requirementsnew_requirements r! ra WorkingSet.resolve s B L)$B$/ \
"--c2 ""1%C **377%%.Y[D
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dependent_reqs r! r WorkingSet._resolve_distO s xx <;;??377+D|4G;| )$,, 7
*"o '^'*~~Y (6 ( CGG} < +T :I.s>> t $ ? ' ,M!$,99-H H r c j [ U5 nUR 5 0 n0 nUc [ U R 5 nX-
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5 5 Mt Mx [ U5 nUR 5 Xv4$ ! [ a nXU ' U( a SnAM SnA M SnAff = f)a Find all activatable distributions in `plugin_env`
Example usage::
distributions, errors = working_set.find_plugins(
Environment(plugin_dirlist)
)
# add plugins+libs to sys.path
map(working_set.add, distributions)
# display errors
print('Could not load', errors)
The `plugin_env` should be an ``Environment`` instance that contains
only distributions that are in the project's "plugin directory" or
directories. The `full_env`, if supplied, should be an ``Environment``
contains all currently-available distributions. If `full_env` is not
supplied, one is created automatically from the ``WorkingSet`` this
method is called on, which will typically mean that every directory on
``sys.path`` will be scanned for distributions.
`installer` is a standard installer callback as used by the
``resolve()`` method. The `fallback` flag indicates whether we should
attempt to resolve older versions of a plugin if the newest version
cannot be resolved.
This method returns a 2-tuple: (`distributions`, `error_info`), where
`distributions` is a list of the distributions found in `plugin_env`
that were loadable, along with any other distributions that are needed
to resolve their dependencies. `error_info` is a dictionary mapping
unloadable plugin distributions to an exception instance describing the
error that occurred. Usually this will be a ``DistributionNotFound`` or
``VersionConflict`` instance.
N)
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D2 D--D2c n U R [ U5 5 nU H nU R U5 M U$ )a Ensure that distributions matching `requirements` are activated
`requirements` must be a string or a (possibly-nested) sequence
thereof, specifying the distributions and versions required. The
return value is a sequence of the distributions that needed to be
activated to fulfill the requirements; all relevant distributions are
included, even if they were already activated in this working set.
)ra r| rb )r r neededr s r! r\ WorkingSet.require s4 0 >?D HHTN
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g)zkInvoke `callback` for all distributions
If `existing=True` (default),
call on all existing ones, as well.
N)rR r )r callbackexistingr s r! subscribeWorkingSet.subscribe s: ~~ % h' D TN r c : U R H nU" U5 M
g r# )rR )r r r s r! r WorkingSet._added_new s H TN 'r c U R S S U R R 5 U R R 5 U R R 5 U R
S S 4$ r# )rN rO r9 rP rQ rR r s r! r4 WorkingSet.__getstate__ sU LLO OO " KK - - 2 2 4 NN1
r c Uu p#pEnUS S U l UR 5 U l UR 5 U l UR 5 U l US S U l g r# )rN r9 rO rP rQ rR )r e_k_b_n_crN r rP rQ rR s r! r7 WorkingSet.__setstate__ sO IRFvY qz ))+ kkm ,H,M,M,O)"1 r )rP rR rN rO rQ r# )NTF)NNFN)NNTT)r r r r r rU classmethodr^ r[ rS rl r rc r] r rb ra r r r\ r r r4 r7 r r r r! rr rr X s N " & *
) 10
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Map each requirement to the extras that demanded it.
Nc ^ U4S jU R TS5 U=( d S- 5 nTR ( + =( d [ U5 $ )z
Evaluate markers for req against each extra that
demanded it.
Return False if the req has a marker and fails
evaluation. Otherwise, return True.
c 3 ^ ># U H" nTR R S U05 v M$ g7f)extraNmarkerevaluate)rt r r s r! ru *_ReqExtras.markers_pass.. s/
@
JJ % 0 1 1@s *-r r# )r r any)r r r extra_evalss ` r! r _ReqExtras.markers_pass s?
#r*f.?@
::~1[!11r r r# )r r r r r r r r r r! r r s 2r r c z \ rS rSrSrS\" 5 \4S jrS rS r SS jr
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jr
SS jrS rS
rS rSrg)rq i z5Searchable snapshot of distributions on a search pathNc L 0 U l X l X0l U R U5 g)a Snapshot distributions available on a search path
Any distributions found on `search_path` are added to the environment.
`search_path` should be a sequence of ``sys.path`` items. If not
supplied, ``sys.path`` is used.
`platform` is an optional string specifying the name of the platform
that platform-specific distributions must be compatible with. If
unspecified, it defaults to the current platform. `python` is an
optional string naming the desired version of Python (e.g. ``'3.6'``);
it defaults to the current version.
You may explicitly set `platform` (and/or `python`) to ``None`` if you
wish to map *all* distributions, not just those compatible with the
running platform or Python version.
N)_distmaprT pythonscan)r search_pathrT r s r! rU Environment.__init__
s! &
+ r c U R SL =( d. UR SL =( d UR U R :H nU=( a [ UR U R 5 $ )zIs distribution `dist` acceptable for this environment?
The distribution must match the platform and python version
requirements specified when this environment was created, or False
is returned.
N)r
py_versionr rT )r r py_compats r! can_addEnvironment.can_add" sX
KK4
.$&
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O 1$-- OOr c T U R UR R U5 g)z"Remove `dist` from the environmentN)r r@ removerk s r! r Environment.remove0 s
dhh &&t,r c Uc [ R nU H& n[ U5 H nU R U5 M M( g)a< Scan `search_path` for distributions usable in this environment
Any distributions found are added to the environment.
`search_path` should be a sequence of ``sys.path`` items. If not
supplied, ``sys.path`` is used. Only distributions conforming to
the platform/python version defined at initialization are added.
N)rS r rm rb )r r r~ r s r! r Environment.scan4 s7 ((K D*40 1 r c Z UR 5 nU R R U/ 5 $ )zReturn a newest-to-oldest list of distributions for `project_name`
Uses case-insensitive `project_name` comparison, assuming all the
project's distributions use their project's name converted to all
lowercase as their key.
)lowerr r )r r distribution_keys r! __getitem__Environment.__getitem__C s+ (--/}} !1266r c U R U5 ( ax UR 5 ( ab U R R UR / 5 nX; a6 UR U5 UR
[ R " S5 SS9 gggg)zCAdd `dist` if we ``can_add()`` it and it has not already been addedhashcmpT)r@ reverseN) r has_versionr rh r@ r r operator
attrgetter)r r re s r! rb Environment.addN ss << $"2"2"4"4MM,,TXXr:E T"
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L ! #5 r c UR U5 nUb U$ XR H nXQ; d M
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U( d e Sn NJf = f)ah Find distribution best matching `req` and usable on `working_set`
This calls the ``find(req)`` method of the `working_set` to see if a
suitable distribution is already active. (This may raise
``VersionConflict`` if an unsuitable version of the project is already
active in the specified `working_set`.) If a suitable distribution
isn't active, this method returns the newest distribution in the
environment that meets the ``Requirement`` in `req`. If no suitable
distribution is found, and `installer` is supplied, then the result of
calling the environment's ``obtain(req, installer)`` method will be
returned.
N)r rx r@ obtain)r r rk r r r s r! r Environment.best_matchV sk ##C(D
KMD{ " {{3** &D s A A A c Ub U" U5 $ g)a Obtain a distribution matching `requirement` (e.g. via download)
Obtain a distro that matches requirement (e.g. via download). In the
base ``Environment`` class, this routine just returns
``installer(requirement)``, unless `installer` is None, in which case
None is returned instead. This method is a hook that allows subclasses
to attempt other ways of obtaining a distribution before falling back
to the `installer` argument.Nr )r requirementr s r! r Environment.obtainq s [) ) !r c # l # U R R 5 H nX ( d M Uv M g7f)z=Yield the unique project names of the available distributionsN)r r r r@ s r! r Environment.__iter__} s( ==%%'Cyy (s %4 4c [ U[ 5 ( a U R U5 U $ [ U[ 5 ( a' U H nX H nU R U5 M M! U $ [ SU< S35 e)z2In-place addition of a distribution or environmentz
Can't add z to environment)r rt rb rq r )r otherprojectr s r! __iadd__Environment.__iadd__ sh e\ * * HHUO
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nM U$ )z4Add an environment or distribution to an environmentN)rT r r )r r newr s r! __add__Environment.__add__ s. nnR$tn<;C JC
r )r rT r r# NF)r r r r r r[ PY_MAJORrU r r r r rb r r r r r r r r r! rq rq sK ? )?)A( 0 P -
7M+6
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r rq c \ rS rSrSrSrg)r{ i a4 An error occurred extracting a resource
The following attributes are available from instances of this exception:
manager
The resource manager that raised this exception
cache_path
The base directory for resource extraction
original_error
The exception instance that caused extraction to fail
r Nr r r r! r{ r{ s r r{ c | \ rS rSrSrSrS rS rS rS r S r
S r S
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5 rS rS rSS jrSrg)rs i z'Manage resource extraction and packagesNc 0 U l g r# ) cached_filesr s r! rU ResourceManager.__init__ s
r c 6 [ U5 R U5 $ )z Does the named resource exist?)r^ rF r package_or_requirementr; s r! rh ResourceManager.resource_exists s 23@@ OOr c 6 [ U5 R U5 $ )z,Is the named resource an existing directory?)r^ ri r
s r! ri ResourceManager.resource_isdir s 23BB=QQr c 6 [ U5 R X5 $ )z4Return a true filesystem path for specified resource)r^ r< r
s r! rf !ResourceManager.resource_filename s 23II
r c 6 [ U5 R X5 $ )z9Return a readable file-like object for specified resource)r^ r? r
s r! re ResourceManager.resource_stream 23GG
r c 6 [ U5 R X5 $ )z%Return specified resource as a string)r^ rB r
s r! rd ResourceManager.resource_string r r c 6 [ U5 R U5 $ )z1List the contents of the named resource directory)r^ rg r
s r! rg ResourceManager.resource_listdir s 23DD]SSr c " [ R " 5 S nU R =( d
[ 5 n[ R
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X$l Xl Ue)z5Give an error message for problems extracting file(s)r a
Can't extract file(s) to egg cache
The following error occurred while trying to extract file(s)
to the Python egg cache:
{old_exc}
The Python egg cache directory is currently set to:
{cache_path}
Perhaps your account does not have write access to this directory?
You can change the cache directory by setting the PYTHON_EGG_CACHE
environment variable to point to an accessible directory.
r )
rS exc_infoextraction_pathrp textwrapdedentlstripr{ r r r:
cache_pathoriginal_error)r old_excr tmplerrs r! extraction_error ResourceManager.extraction_error sv ,,.#))@->-@
" &(#
$ dkk 5FH 56 # $ r c U R =( d
[ 5 n[ R R " X1S- /UQ76 n [ U5 U R U5 SU R U' U$ ! [ a U R 5 N>f = f)af Return absolute location in cache for `archive_name` and `names`
The parent directory of the resulting path will be created if it does
not already exist. `archive_name` should be the base filename of the
enclosing egg (which may not be the name of the enclosing zipfile!),
including its ".egg" extension. `names`, if provided, should be a
sequence of path name parts "under" the egg's extraction location.
This method should only be called by resource providers that need to
obtain an extraction location, and only for names they intend to
extract, as it tracks the generated names for possible cleanup later.
z-tmpr )
r rp r r rU _bypass_ensure_directory Exceptionr# _warn_unsafe_extraction_pathr )r archive_namenames extract_path target_paths r! get_cache_path ResourceManager.get_cache_path s ++B/@/B ggll<1FOO $ $[ 1
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If the default extraction path is overridden and set to an insecure
location, such as /tmp, it opens up an opportunity for an attacker to
replace an extracted file with an unauthorized payload. Warn the user
if a known insecure location is used.
See Distribute #375 for more details.
ntwindirNzExtraction path is writable by group/others and vulnerable to attack when used with get_resource_filename ({path}). Consider a more secure location (set with .set_extraction_path or the PYTHON_EGG_CACHE environment variable).r )
r r r environstatst_modeS_IWOTHS_IWGRPr r warningswarn UserWarning)r modemsgs r! r( ,ResourceManager._warn_unsafe_extraction_path s 77d?4??2::h3G#H#H
wwt}$$ $,, $ "5: f ! x!C
MM#{ + #6r c [ R S:X a= [ R " U5 R S- S- n[ R " X5 gg)a Perform any platform-specific postprocessing of `tempname`
This is where Mac header rewrites should be done; other platforms don't
have anything special they should do.
Resource providers should call this method ONLY after successfully
extracting a compressed resource. They must NOT call it on resources
that are already in the filesystem.
`tempname` is the current (temporary) name of the file, and `filename`
is the name it will be renamed to by the caller after this routine
returns.
posixim i N)r r r3 r4 chmod)r tempnamefilenamer: s r! postprocessResourceManager.postprocess# s? 77g WWX&..%76AD HHX $ r c H U R ( a [ S5 eXl g)ab Set the base path where resources will be extracted to, if needed.
If you do not call this routine before any extractions take place, the
path defaults to the return value of ``get_default_cache()``. (Which
is based on the ``PYTHON_EGG_CACHE`` environment variable, with various
platform-specific fallbacks. See that routine's documentation for more
details.)
Resources are extracted to subdirectories of this path based upon
information given by the ``IResourceProvider``. You may set this to a
temporary directory, but then you must call ``cleanup_resources()`` to
delete the extracted files when done. There is no guarantee that
``cleanup_resources()`` will be able to remove all extracted files.
(Note: you may not change the extraction path for a given resource
manager once resources have been extracted, unless you first call
``cleanup_resources()``.)
z5Can't change extraction path, files already extractedN)r rX r r r s r! rn #ResourceManager.set_extraction_path7 s & TU U # r c g)a
Delete all extracted resource files and directories, returning a list
of the file and directory names that could not be successfully removed.
This function does not have any concurrency protection, so it should
generally only be called when the extraction path is a temporary
directory exclusive to a single process. This method is not
automatically called; you must call it explicitly or register it as an
``atexit`` function if you wish to ensure cleanup of a temporary
directory used for extractions.
Nr )r forces r! ro !ResourceManager.cleanup_resourcesO r' r )r r r F)r r r r r r rU rh ri rf re rd rg r# r- staticmethodr( rB rn ro r r r r! rs rs s] 1O PR
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Return the ``PYTHON_EGG_CACHE`` environment variable
or a platform-relevant user cache dir for an app
named "Python-Eggs".
PYTHON_EGG_CACHEz Python-Eggs)appname)r r2 r r user_cache_dirr r r! rp rp ] s/ ::>>, - 1L1L 2 r c 2 [ R " SSU 5 $ )zConvert an arbitrary string to a standard distribution name
Any runs of non-alphanumeric/. characters are replaced with a single '-'.
[^A-Za-z0-9.]+rO )resubr$ s r! r~ r~ h s
66"C ..r c [ [ R R U 5 5 $ ! [ R R a- U R SS5 n [ R " SSU 5 s $ f = f)z:
Convert an arbitrary string to a standard version string
r rN rR rO )r r r VersionInvalidVersionr rS rT )r s r! r r p sb 69$$,,W566 + + 6//#s+vv&W556s '* AA54A5c U R SS5 n [ R U 5 nU( a US nU [ U5 S nOSnU nS[ U5 3R S5 nU SU 3$ )a Fallback when ``safe_version`` is not safe enough
>>> parse_version(_forgiving_version('0.23ubuntu1'))
>>> parse_version(_forgiving_version('0.23-'))
>>> parse_version(_forgiving_version('0.-_'))
>>> parse_version(_forgiving_version('42.+?1'))
>>> parse_version(_forgiving_version('hello world'))
r rN safeN0z
sanitized.z.dev0+)r _PEP440_FALLBACKsearchlen
_safe_segmentstrip)r rR rY restlocals r! _forgiving_versionrb | sx ooc3'G # #G ,E V}s4y{# t,- . 4 4S 9EV6% !!r c [ R " SSU 5 n [ R " SSU 5 n [ R " SSU 5 R S5 $ )z/Convert an arbitrary string into a safe segmentrR rO z-[^A-Za-z0-9]+z\.[^A-Za-z0-9]+rN z.-)rS rT r_ )segments r! r^ r^ sG ff%sG4Gff%sG4G
66$c7 3 9 9$ ??r c N [ R " SSU 5 R 5 $ )zConvert an arbitrary string to a standard 'extra' name
Any runs of non-alphanumeric characters are replaced with a single '_',
and the result is always lowercased.
z[^A-Za-z0-9.-]+r )rS rT r )r s r! r r s! 66#S% 0 6 6 88r c & U R SS5 $ )ztConvert a project or version name to its filename-escaped form
Any '-' characters are currently replaced with '_'.
rO r r r$ s r! r r s
<<S !!r c j [ U 5 g! [ a nSUl SUl Us SnA$ SnAff = f)zc
Validate text as a PEP 508 environment marker; return an exception
if invalid or False otherwise.
NF)r SyntaxErrorrA lineno)textes r! r r s9
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2-22c [ R R U 5 nUR 5 $ ! [ R R a n[ U5 UeSnAff = f)z
Evaluate a PEP 508 environment marker.
Return a boolean indicating the marker result in this environment.
Raise SyntaxError if marker is invalid.
This implementation uses the 'pyparsing' module.
N)r markersMarkerr
InvalidMarkerrh )rj r r rk s r! r r sR $""))$/ * * $!n!#$s .1 A AA c \ rS rSrSrSrSrSrS rS r S r
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rS rS rS rS rS rS rS rS r\S 5 rS r Sr g)r i zETry to implement resources and metadata for arbitrary PEP 302 loadersNc [ USS 5 U l [ R R [ USS5 5 U l g )Nr __file__r )r r r r dirname module_path)r r s r! rU NullProvider.__init__ s0 flD9 77??76:r+JKr c : U R U R U5 $ r# )_fnrt r r: r; s r! r< "NullProvider.get_resource_filename s xx((-88r c L [ R " U R X5 5 $ r# )ioBytesIOrB rx s r! r? NullProvider.get_resource_stream s zz$227JKKr c X U R U R U R U5 5 $ r# )_getrw rt rx s r! rB NullProvider.get_resource_string " yy$"2"2MBCCr c X U R U R U R U5 5 $ r# )_hasrw rt r r; s r! rF NullProvider.has_resource r r c : U R U R U5 $ r# )rw egg_infor r s r! _get_metadata_path NullProvider._get_metadata_path s xx
t,,r c U R ( d U R $ U R U5 nU R U5 $ r# )r r r r r r s r! r% NullProvider.has_metadata s1 }}== &&t,yy r c U R ( d gU R U5 nU R U5 n UR S5 $ ! [ a* nU=R
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sl e S nAff = f)Nr utf-8z in {} file at path: {})r r r decodeUnicodeDecodeErrorreasonr )r r r valueexcs r! r) NullProvider.get_metadata sl }}&&t, $ <<( (!
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A;%A66A;c 6 [ U R U5 5 $ r# r r) r s r! r, NullProvider.get_metadata_lines 4,,T233r c X U R U R U R U5 5 $ r# )_isdirrw rt r s r! ri NullProvider.resource_isdir s" {{488D$4$4mDEEr c ~ U R =( a+ U R U R U R U5 5 $ r# )r r rw r s r! r/ NullProvider.metadata_isdir s) }}KTXXdmmT-J!KKr c X U R U R U R U5 5 $ r# )_listdirrw rt r s r! rg NullProvider.resource_listdir s" }}TXXd&6&6
FGGr c ~ U R ( a+ U R U R U R U5 5 $ / $ r# )r r rw r s r! r2 NullProvider.metadata_listdir s, ====$--!>? ? r c SU- nU R U5 ( d# [ SR " S
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