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Z! y& d d l m" Z" m# Z# m$ Z$ d Z% Wn e k r�d Z% Yn Xd d l m& Z' d d l( m) Z) m* Z* e j+ d d f k o8e j, j- d k rMd d l. j/ Z0 n d Z0 y d d l1 Z1 Wn e k rwYn Xd d d � Z2 i Z3 d d � Z4 d d � Z5 d d � Z6 d d � Z7 d d � Z8 d! d" � Z9 d# d$ � Z: d% d � Z; Z< d& d' � Z= d( d) d* d+ d, d- d. d/ d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d: d; d< d= d> d? d@ dA dB dC dD dE dF dG dH dI dJ dK dL dM dN dO dP dQ dR dS dT dU dV dW dX dY dZ d[ d\ d] d^ d_ d` da db dc dd de df dg dh di dj dk dl gE Z> Gdm dC � dC e? � Z@ Gdn dD � dD e@ � ZA Gdo dE � dE e@ � ZB Gdp dF � dF e@ � ZC i ZD e jE d d � ZF d ZG dq ZH dr ZI d ZJ dr ZK ds dh � ZL dt d* � ZM g du dv � ZN dw dx � ZO dy dz � ZP e jQ d{ � ZR e jQ d| � ZS eP ZT d} dM � ZU d~ d) � ZV eV ZW d d+ � ZX d� d, � ZY d d� d- � ZZ d� d. � Z[ Gd� d[ � d[ � Z\ Gd� d\ � d\ e\ � Z] Gd� d> � d> e^ � Z_ Gd� d= � d= e^ � Z` e` Za Gd� dG � dG eb � Zc Gd� d? � d? � Zd d� d< � Ze d� dJ � Zf d� dK � Zg d� dP � Zh d� dQ � Zi Gd� d� � d� e^ � Zj ej jk Zl ej jm Zm Gd� db � db � Zn eL e^ en � Gd� dc � dc en � Zo Gd� dd � dd eo � Zp eL eq d � ep � e0 d k r|eL e0 jr ep � n Gd� d` � d` en � Zs es � Zt d� d� � Zu Gd� de � de eo � Zv eL e jw ev � Gd� d] � d] es � Zx Gd� d^ � d^ ep � Zy Gd� d_ � d_ ev � Zz e4 d� d� i �d� df � Z{ d d� d9 � Z| d d� d� � Z} e{ e jw e} � d d� d� � Z~ e{ e^ e~ � d d� d� � Z e{ e j� e � e0 d k r�e{ e0 j� e � n e4 d� d� i �e4 d� d� i �d� dg � Z� d� d� � Z� d� d6 � Z� d d� di � Z� d� d� � Z� e� e j� e� � e� e jw e� � e0 d k rQe� e0 j� e� � n d� d� � Z� e� e^ e� � d� dU � Z� i d� d� � Z� d� d� � Z� d� dN � Z� e jQ d� � j� Z� e jQ d� � j� Z� e jQ d� � j� Z� e jQ d� � j� Z� e jQ d� � j� Z� e jQ d� � j� Z� e jQ d� � j� Z� e jQ d� � j� Z� e jQ d� e j� e j� B� j� Z� e jQ d� e j� � Z� i d� d� 6d� d� 6d� d� 6d� d� 6d� d� 6j� Z� d� d� � Z� d� dI � Z� Gd� dB � dB e^ � Z� d� d� � Z� Gd� d@ � d@ e^ � Z� Gd� d� � d� e� � Z� i e� d� 6e� d� 6e� d� 6Z� d� d� � Z� d� dH � Z� d� d� � Z� Gd� dA � dA � Z� i d� d� 6d� d� 6d� d� 6d� d� 6d� d� 6d� d� 6Z� d� d� � Z� d� d� � Z� d� dT � Z� d� dO � Z� d� d� � Z� ed � Z� d� d� � Z� e� e� � � e_ j� � Z� e4 d� d7 e� �e� j� Z� e� j� Z� e� j� Z� e� jV ZV eV ZW e� d� d � � g e� _� e� e� e� j� e j� � � d S)�aZ Package resource API -------------------- A resource is a logical file contained within a package, or a logical subdirectory thereof. 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It can also work in a limited way with .zip files and with custom PEP 302 loaders that support the ``get_data()`` method. � N)� get_importer)�urlparse� urlunparse)� ImmutableSetc C s | j � S)N)�next)�o� r �4/tmp/pip-ztkk0jow-build/pip/_vendor/pkg_resources.py�<lambda>- s r )�StringIO)�BytesIOc C sY | d k r t � } n | d k r- | } n t t t | � j � | d � | | � d S)N�exec)�globalsr �compile�open�read)�fn�globs�locsr r r �execfile2 s r )�utime)�mkdir�rename�unlinkTF)r )�isdir�split� Zcpythoni� c C s^ t s t d � � n t | � \ } } | rZ | rZ t | � rZ t | � t | | � n d S)Nz*"os.mkdir" not supported on this platform.)� WRITE_SUPPORT�IOErrorr r �_bypass_ensure_directoryr )�name�mode�dirname�filenamer r r r P s r c K s- t � j | � t j t j | | � � d S)N)r �update� _state_vars�dict�fromkeys)�vartype�kwr r r �_declare_state\ s r* c C sL i } t � } x6 t j � D]( \ } } | d | | | � | | <q W| S)N�_sget_)r r% �items)�state�g�k�vr r r � __getstate__` s r1 c C sJ t � } x: | j � D], \ } } | d t | | | | | � q W| S)N�_sset_)r r, r% )r- r. r/ r0 r r r � __setstate__g s $r3 c C s | j � S)N)�copy)�valr r r � _sget_dictm s r6 c C s | j � | j | � d S)N)�clearr$ )�key�obr- r r r � _sset_dictp s r: c C s | j � S)N)r1 )r5 r r r � _sget_objectt s r; c C s | j | � d S)N)r3 )r8 r9 r- r r r � _sset_objectw s r< c G s d S)Nr )�argsr r r r z s c C s� t � } t j | � } | d k r~ t j d k r~ y3 d d j t � d d � � | j d � f } Wq~ t k rz Yq~ Xn | S)aZ Return this platform's maximum compatible version. distutils.util.get_platform() normally reports the minimum version of Mac OS X that would be required to *use* extensions produced by distutils. But what we want when checking compatibility is to know the version of Mac OS X that we are *running*. To allow usage of packages that explicitly require a newer version of Mac OS X, 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. N�darwinz macosx-%s-%s�.� r ) �get_build_platform�macosVersionString�match�sys�platform�join� _macosx_vers�group� ValueError)�plat�mr r r �get_supported_platform} s 3 rL �require� run_script� get_provider�get_distribution�load_entry_point� get_entry_map�get_entry_info�iter_entry_points�resource_string�resource_stream�resource_filename�resource_listdir�resource_exists�resource_isdir�declare_namespace� working_set�add_activation_listener�find_distributions�set_extraction_path�cleanup_resources�get_default_cache� Environment� WorkingSet�ResourceManager� Distribution� Requirement� EntryPoint�ResolutionError�VersionConflict�DistributionNotFound� UnknownExtra�ExtractionError�parse_requirements� parse_version� safe_name� safe_version� get_platform�compatible_platforms� yield_lines�split_sections� safe_extra� to_filename�invalid_marker�evaluate_marker�ensure_directory�normalize_path�EGG_DIST� BINARY_DIST� SOURCE_DIST� CHECKOUT_DIST� DEVELOP_DIST�IMetadataProvider�IResourceProvider� FileMetadata� PathMetadata� EggMetadata� EmptyProvider�empty_provider� NullProvider� EggProvider�DefaultProvider� ZipProvider�register_finder�register_namespace_handler�register_loader_type�fixup_namespace_packagesr �run_main�AvailableDistributionsc @ s" e Z d Z d Z d d � Z d S)rh z.Abstract base for dependency resolution errorsc C s | j j t | j � S)N)� __class__�__name__�reprr= )�selfr r r �__repr__� s zResolutionError.__repr__N)r� � __module__� __qualname__�__doc__r� r r r r rh � s c @ s e Z d Z d Z d S)ri zAAn already-installed version conflicts with the requested versionN)r� r� r� r� r r r r ri � s c @ s e Z d Z d Z d S)rj z&A requested distribution was not foundN)r� r� r� r� r r r r rj � s c @ s e Z d Z d Z d S)rk z>Distribution doesn't have an "extra feature" of the given nameN)r� r� r� r� r r r r rk � s r@ � c C s | t | <d S)a Register `provider_factory` to make providers for `loader_type` `loader_type` is the type or class of a PEP 302 ``module.__loader__``, and `provider_factory` is a function that, passed a *module* object, returns an ``IResourceProvider`` for that module. N)�_provider_factories)� loader_type�provider_factoryr r r r� � s c C s� t | t � r2 t j | � p1 t t | � � d Sy t j | } Wn) t k rn t | � t j | } Yn Xt | d d � } t t | � | � S)z?Return an IResourceProvider for the named module or requirementr � __loader__N) � isinstancerf r\ �findrM �strrD �modules�KeyError� __import__�getattr� _find_adapterr� )� moduleOrReq�module�loaderr r r rO � s # c C s� | s� d d l } | j � d } | d k r� d d l } d } t j j | � r� t | d � r� | j | � } d | k r� | d } q� q� q� n | j | j d � � n | d S)Nr � z0/System/Library/CoreServices/SystemVersion.plist� readPlist�ProductVersionr? ) rE �mac_ver�plistlib�os�path�exists�hasattrr� �appendr )�_cacherE �versionr� �plist� plist_contentr r r rG � s rG c C s i d d 6d d 6j | | � S)N�ppc�PowerPC�Power_Macintosh)�get)�machiner r r � _macosx_arch� s r� c C s� y d d l m } Wn" t k r8 d d l m } Yn X| � } t j d k r� | j d � r� yT t � } t j � d j d d � } d t | d � t | d � t | � f SWq� t k r� Yq� Xn | S) z�Return 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 Mac OS X. r )rq r> zmacosx-� � �_zmacosx-%d.%d-%sr� )� sysconfigrq � ImportError�distutils.utilrD rE � startswithrG r� �uname�replace�intr� rI )rq rJ r� r� r r r rA � s rA zmacosx-(\d+)\.(\d+)-(.*)z darwin-(\d+)\.(\d+)\.(\d+)-(.*)c C sO | d k s$ | d k s$ | | k r( d St j | � } | rKt j | � } | s� t j | � } | r� t | j d � � } d | j d � | j d � f } | d k r� | d k s� | d k r� | d k r� d Sn d S| j d � | j d � k s| j d � | j d � k rd St | j d � � t | j d � � k rGd Sd Sd S) z�Can code for the `provided` platform run on the `required` platform? Returns true if either platform is ``None``, or the platforms are equal. XXX Needs compatibility checks for Linux and other unixy OSes. NTr� z%s.%sr@ � z10.3� z10.4Fr )rB rC �darwinVersionStringr� rH )�provided�required�reqMac�provMac� provDarwin�dversion� macosversionr r r rr s* $" *c C sN t j d � j } | d } | j � | | d <t | � d j | | � d S)z@Locate distribution `dist_spec` and run its `script_name` scriptr� r� r N)rD � _getframe� f_globalsr7 rM rN )Z dist_spec� script_name�nsr r r r rN K s c C sd t | t � r! t j | � } n t | t � r? t | � } n t | t � s` t d | � � n | S)z@Return a current distribution object for a Requirement or stringz-Expected string, Requirement, or Distribution)r� � basestringrf �parserO re � TypeError)�distr r r rP U s c C s t | � j | | � S)zDReturn `name` entry point of `group` for `dist` or raise ImportError)rP rQ )r� rH r r r r rQ ] s c C s t | � j | � S)z=Return the entry point map for `group`, or the full entry map)rP rR )r� rH r r r rR a s c C s t | � j | | � S)z<Return the EntryPoint object for `group`+`name`, or ``None``)rP rS )r� rH r r r r rS e s c @ sX e Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d S)r� c C s d S)z;Does the package's distribution contain the named metadata?Nr )r r r r � has_metadatal s z IMetadataProvider.has_metadatac C s d S)z'The named metadata resource as a stringNr )r r r r � get_metadatao s z IMetadataProvider.get_metadatac C s d S)z�Yield named metadata resource as list of non-blank non-comment lines Leading and trailing whitespace is stripped from each line, and lines with ``#`` as the first non-blank character are omitted.Nr )r r r r �get_metadata_linesr s z$IMetadataProvider.get_metadata_linesc C s d S)z>Is the named metadata a directory? (like ``os.path.isdir()``)Nr )r r r r �metadata_isdirx s z IMetadataProvider.metadata_isdirc C s d S)z?List of metadata names in the directory (like ``os.listdir()``)Nr )r r r r �metadata_listdir{ s z"IMetadataProvider.metadata_listdirc C s d S)z=Execute the named script in the supplied namespace dictionaryNr )r� � namespacer r r rN ~ s z IMetadataProvider.run_scriptN) r� r� r� r� r� r� r� r� rN r r r r r� j s c @ s^ e Z d Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d S)r� z3An object that provides access to package resourcesc C s d S)zdReturn a true filesystem path for `resource_name` `manager` must be an ``IResourceManager``Nr )�manager� resource_namer r r �get_resource_filename� s z'IResourceProvider.get_resource_filenamec C s d S)ziReturn a readable file-like object for `resource_name` `manager` must be an ``IResourceManager``Nr )r� r� r r r �get_resource_stream� s z%IResourceProvider.get_resource_streamc C s d S)zmReturn a string containing the contents of `resource_name` `manager` must be an ``IResourceManager``Nr )r� r� r r r �get_resource_string� s z%IResourceProvider.get_resource_stringc C s d S)z,Does the package contain the named resource?Nr )r� r r r � has_resource� s z IResourceProvider.has_resourcec C s d S)z>Is the named resource a directory? (like ``os.path.isdir()``)Nr )r� r r r rZ � s z IResourceProvider.resource_isdirc C s d S)z?List of resource names in the directory (like ``os.listdir()``)Nr )r� r r r rX � s z"IResourceProvider.resource_listdirN) r� r� r� r� r� r� r� r� rZ rX r r r r r� � s c @ s e Z d Z d Z d d d � Z e d d � � Z e d d � � Z d d � Z d d � Z d d � Z d d d � Z d d � Z d d � Z d d d d d � Z d d d d d � Z d d d d d � Z d d � Z d d � Z d! d" � Z d# d$ � Z d% d& � Z d S)'rc zDA collection of active distributions on sys.path (or a similar list)Nc C s^ g | _ i | _ i | _ g | _ | d k r< t j } n x | D] } | j | � qC Wd S)z?Create working set from list of path entries (default=sys.path)N)�entries� entry_keys�by_key� callbacksrD r� � add_entry)r� r� �entryr r r �__init__� s zWorkingSet.__init__c C sm | � } y d d l m } Wn t k r5 | SYn Xy | j | � Wn t k rh | j | � SYn X| S)z1 Prepare the master working set. r )� __requires__)�__main__r� r� rM ri �_build_from_requirements)�cls�wsr� r r r � _build_master� s zWorkingSet._build_masterc C s� | g � } t | � } | j | t � � } x | D] } | j | � q4 Wx0 t j D]% } | | j k rU | j | � qU qU W| j t j d d � <| S)zQ Build a working set from a requirement spec. Rewrites sys.path. N)rm �resolverb �addrD r� r� r� )r� �req_specr� �reqs�distsr� r� r r r r� � s z#WorkingSet._build_from_requirementsc C sT | j j | g � | j j | � x* t | d � D] } | j | | d � q3 Wd S)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``.) TFN)r� � setdefaultr� r� r^ r� )r� r� r� r r r r� � s zWorkingSet.add_entryc C s | j j | j � | k S)z9True if `dist` is the active distribution for its project)r� r� r8 )r� r� r r r � __contains__� s zWorkingSet.__contains__c C sG | j j | j � } | d k r? | | k r? t | | � � n | Sd S)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. N)r� r� r8 ri )r� �reqr� r r r r� � s zWorkingSet.findc c sg x` | D]X } | j | � } | d k rG x4 | j � D] } | Vq5 Wq | | k r | | Vq q Wd S)a Yield 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). N)rR �values)r� rH r r� r� �epr r r rT � s z WorkingSet.iter_entry_pointsc C sQ t j d � j } | d } | j � | | d <| j | � d j | | � d S)z?Locate distribution for `requires` and run `script_name` scriptr� r� r N)rD r� r� r7 rM rN )r� �requiresr� r� r r r r rN s zWorkingSet.run_scriptc c sp i } xc | j D]X } | | j k r+ q n x: | j | D]+ } | | k r9 d | | <| j | Vq9 q9 Wq Wd S)z�Yield distributions for non-duplicate projects in the working set The yield order is the order in which the items' path entries were added to the working set. r� N)r� r� r� )r� �seen�itemr8 r r r �__iter__ s zWorkingSet.__iter__TFc C s� | r | j | j | � n | d k r4 | j } n | j j | g � } | j j | j g � } | r~ | j | j k r~ d S| | j | j <| j | k r� | j | j � n | j | k r� | j | j � n | j | � d S)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. N) � insert_onr� �locationr� r� r8 r� r� � _added_new)r� r� r� �insertr� �keys�keys2r r r r� # s zWorkingSet.addc C s� t | � d d d � } i } i } g } xc| r�| j d � } | | k rU q. n | j | j � } | d k r?| j j | j � } | d k s� | | k r/| r/| } | d k r� | d k r� t | j � } q� t g � } t g � } n | j | | | � } | | j <| d k r/t | � � q/n | j | � n | | k r]t | | � � n | j | j | j � d d d � � d | | <q. W| S)ae 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. Nr� r T���r )�list�popr� r8 r� rb r� rc � best_matchrj r� ri �extendr� �extras) r� � requirements�env� installer�replace_conflicting� processed�best� to_activater� r� r� r r r r� @ s6 &zWorkingSet.resolvec C sP t | � } | j � i } i } | d k rJ t | j � } | | 7} n | | } | j g � } t t | j | � � x� | D]� } x� | | D]� } | j � g } y | j | | | � } Wn9 t k r� t j � d } | | | <| r� w� n PYq� Xt t | j | � � | j t j | � � Pq� Wq� Wt | � } | j � | | f S)ab Find all activatable distributions in `plugin_env` Example usage:: distributions, errors = working_set.find_plugins( Environment(plugin_dirlist) ) map(working_set.add, distributions) # add plugins+libs to sys.path print 'Could not load', errors # display 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. Nr� )r �sortrb r� r� �mapr� �as_requirementr� rh rD �exc_infor$ r& r' )r� � plugin_env�full_envr �fallback�plugin_projects� error_info� distributionsr � shadow_set� project_namer� r� � resolveesr0 r r r � find_plugins~ s6 " zWorkingSet.find_pluginsc G s7 | j t | � � } x | D] } | j | � q W| S)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. )r� rm r� )r� r �neededr� r r r rM � s zWorkingSet.requirec C sB | | j k r d S| j j | � x | D] } | | � q* Wd S)zAInvoke `callback` for all distributions (including existing ones)N)r� r� )r� �callbackr� r r r � subscribe� s zWorkingSet.subscribec C s" x | j D] } | | � q Wd S)N)r� )r� r� r" r r r r � s zWorkingSet._added_newc C s< | j d d � | j j � | j j � | j d d � f S)N)r� r� r4 r� r� )r� r r r r1 � s (zWorkingSet.__getstate__c C sZ | \ } } } } | d d � | _ | j � | _ | j � | _ | d d � | _ d S)N)r� r4 r� r� r� )r� �e_k_b_cr� r r� r� r r r r3 � s zWorkingSet.__setstate__)r� r� r� r� r� � classmethodr� r� r� r� r� rT rN r� r� r� r rM r# r r1 r3 r r r r rc � s( =M c @ s� e Z d Z d Z d e � e d d � Z d d � Z d d � Z d d d � Z d d � Z d d � Z d d d � Z d d d � Z d d � Z d d � Z d d � Z d S)rb z5Searchable snapshot of distributions on a search pathNc C s5 i | _ i | _ | | _ | | _ | j | � d S)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. ``'3.3'``); 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)�_distmapr� rE �python�scan)r� � search_pathrE r' r r r r� � s zEnvironment.__init__c C sC | j d k s0 | j d k s0 | j | j k oB t | j | j � S)z�Is 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_versionrr rE )r� r� r r r �can_add s zEnvironment.can_addc C s | j | j j | � d S)z"Remove `dist` from the environmentN)r& r8 �remove)r� r� r r r r, s zEnvironment.removec C sQ | d k r t j } n x2 | D]* } x! t | � D] } | j | � q2 Wq Wd S)ad 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)rD r� r^ r� )r� r) r� r� r r r r( s zEnvironment.scanc C s� y | j | SWn1 t k rB | j � } | | j k r> g SYn X| | j k rw | j | } | j | <t | � n | j | S)zKReturn a newest-to-oldest list of distributions for `project_name` )r� r� �lowerr& � _sort_dists)r� r r� r r r � __getitem__. s zEnvironment.__getitem__c C s | j | � r{ | j � r{ | j j | j g � } | | k r{ | j | � | j | j k rx t | j | j � qx q{ n d S)z<Add `dist` if we ``can_add()`` it and it isn't already addedN)r+ � has_versionr& r� r8 r� r� r. )r� r� r� r r r r� > s zEnvironment.addc C sW | j | � } | d k r | Sx% | | j D] } | | k r- | Sq- W| j | | � S)a� 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� r8 �obtain)r� r� r\ r r� r r r r G s zEnvironment.best_matchc C s | d k r | | � Sd S)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 r r r r1 \ s zEnvironment.obtainc c s0 x) | j j � D] } | | r | Vq q Wd S)z=Yield the unique project names of the available distributionsN)r& r )r� r8 r r r r� h s zEnvironment.__iter__c C s{ t | t � r | j | � nX t | t � rd xF | D]( } x | | D] } | j | � qF Wq5 Wn t d | f � � | S)z2In-place addition of a distribution or environmentzCan't add %r to environment)r� re r� rb r� )r� �other�projectr� r r r �__iadd__m s zEnvironment.__iadd__c C s@ | j g d d d d �} x | | f D] } | | 7} q( W| S)z4Add an environment or distribution to an environmentrE Nr' )r� )r� r3 �newr r r r �__add__y s zEnvironment.__add__)r� r� r� r� rL �PY_MAJORr� r+ r, r( r/ r� r r1 r� r5 r7 r r r r rb � s c @ s e Z d Z d Z d S)rl aT 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 N)r� r� r� r� r r r r rl � s c @ s� e Z d Z d Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z f d d � Z e d d � � Z d d � Z d d � Z d d d � Z d S) rd z'Manage resource extraction and packagesNc C s i | _ d S)N)� cached_files)r� r r r r� � s zResourceManager.__init__c C s t | � j | � S)z Does the named resource exist?)rO r� )r� �package_or_requirementr� r r r rY � s z ResourceManager.resource_existsc C s t | � j | � S)z,Is the named resource an existing directory?)rO rZ )r� r: r� r r r rZ � s z ResourceManager.resource_isdirc C s t | � j | | � S)z4Return a true filesystem path for specified resource)rO r� )r� r: r� r r r rW � s z!ResourceManager.resource_filenamec C s t | � j | | � S)z9Return a readable file-like object for specified resource)rO r� )r� r: r� r r r rV � s z ResourceManager.resource_streamc C s t | � j | | � S)z%Return specified resource as a string)rO r� )r� r: r� r r r rU � s z ResourceManager.resource_stringc C s t | � j | � S)z1List the contents of the named resource directory)rO rX )r� r: r� r r r rX � s z ResourceManager.resource_listdirc C s] t j � d } | j p t � } t d | | f � } | | _ | | _ | | _ | � d S)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: %s The Python egg cache directory is currently set to: %s 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. N)rD r �extraction_pathra rl r� � cache_path�original_error)r� �old_excr< �errr r r �extraction_error� s z ResourceManager.extraction_errorc C so | j p t � } t j j | | d | � } y t | � Wn | j � Yn X| j | � d | j | <| S)a� 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; ra r� r� rF r r@ � _warn_unsafe_extraction_pathr9 )r� � archive_name�names� extract_path� target_pathr r r �get_cache_path� s z ResourceManager.get_cache_pathc C sw t j d k r* | j t j d � r* d St j | � j } | t j @sV | t j @rs d | } t j | t � n d S)aN 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. �nt�windirNz�%s is writable by group/others and vulnerable to attack when used with get_resource_filename. Consider a more secure location (set with .set_extraction_path or the PYTHON_EGG_CACHE environment variable).) r� r r� �environ�stat�st_mode�S_IWOTH�S_IWGRP�warnings�warn� UserWarning)r� r! �msgr r r rA � s &z,ResourceManager._warn_unsafe_extraction_pathc C s@ t j d k r< t j | � j d Bd @} t j | | � n d S)a4 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 rJ rK �chmod)r� �tempnamer# r! r r r � postprocess s zResourceManager.postprocessc C s% | j r t d � � n | | _ d S)a� 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)r9 rI r; )r� r� r r r r_ s z#ResourceManager.set_extraction_pathFc C s d S)aB 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� �forcer r r r` 7 s z!ResourceManager.cleanup_resources)r� r� r� r� r; r� rY rZ rW rV rU rX r@ rF � staticmethodrA rU r_ r` r r r r rd � s c C s y t j d SWn t k r# Yn Xt j d k rC t j j d � Sd } d d | f d | f d | f d d | f g } x� | D]� \ } } d } xn | D]5 } | t j k r� t j j | t j | � } q� Pq� W| r� t j j | | � } n t j j | d � Sq� Wt d � � d S)a Determine the default cache location This returns the ``PYTHON_EGG_CACHE`` environment variable, if set. Otherwise, on Windows, it returns a "Python-Eggs" subdirectory of the "Application Data" directory. On all other systems, it's "~/.python-eggs". �PYTHON_EGG_CACHErG z~/.python-eggszApplication Data�APPDATAN� USERPROFILE� HOMEDRIVE�HOMEPATH�HOME�WINDIRr� z Python-Eggsz3Please set the PYTHON_EGG_CACHE enviroment variable�zAPPDATA)r_ N)z USERPROFILE)z HOMEDRIVE�HOMEPATH)r` �zHOME)ra N)zWINDIR)r� rI r� r r� � expanduserrF � RuntimeError)�app_data� app_homesr �subdirr" r8 r r r ra D s0 c C s t j d d | � S)z�Convert an arbitrary string to a standard distribution name Any runs of non-alphanumeric/. characters are replaced with a single '-'. z[^A-Za-z0-9.]+�-)�re�sub)r r r r ro m s c C s% | j d d � } t j d d | � S)z�Convert an arbitrary string to a standard version string Spaces become dots, and all other non-alphanumeric characters become dashes, with runs of multiple dashes condensed to a single dash. r� r? z[^A-Za-z0-9.]+rg )r� rh ri )r� r r r rp u s c C s t j d d | � j � S)z�Convert 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� )rh ri r- )�extrar r r ru s c C s | j d d � S)z|Convert a project or version name to its filename-escaped form Any '-' characters are currently replaced with '_'. rg r� )r� )r r r r rv � s c @ sI e Z d Z i d d � d 6d d � d 6d d � d 6d d � d 6e j d 6e j d 6e j d 6Z e d d � � Z e d d � � Z e d d � � Z e d d � � Z e d d � � Z e d d � � Z e d d � � Z e d d d � � Z e d d � � Z d e � k r!e Z n e d! d" � � Z e d# d$ � � Z d S)%�MarkerEvaluationc C s t j S)N)r� r r r r r r � s zMarkerEvaluation.<lambda>�os_namec C s t j S)N)rD rE r r r r r � s � sys_platformc C s t j j � d S)Nr )rD r� r r r r r r � s �python_full_versionc C s d t j d t j d f S)Nz%s.%sr r� )rD � version_infor r r r r � s �python_version�platform_version�platform_machine�python_implementationc C sA y | j | � Wn) t k r< | j t j � d � SYn Xd S)z{ Validate text as a PEP 426 environment marker; return an exception if invalid or False otherwise. r� F)rx � SyntaxError�normalize_exceptionrD r )r� �textr r r �is_invalid_marker� s z"MarkerEvaluation.is_invalid_markerc C sE i d d 6d d 6} d | _ d | _ | j | j | j � | _ | S)z� Given a SyntaxError from a marker evaluation, normalize the error message: - Remove indications of filename and line number. - Replace platform-specific error messages with standard error messages. zinvalid syntaxz unexpected EOF while parsingzparenthesis is never closedN)r# �linenor� rQ )�exc�subsr r r ru � s z$MarkerEvaluation.normalize_exceptionc s; t j t j � � f d d � t d t � � d � D� � S)Nc s# g | ] } � j � | � � q Sr )� interpret)�.0�i)r� �nodelistr r � <listcomp>� s z-MarkerEvaluation.and_test.<locals>.<listcomp>r� r@ )� functools�reduce�operator�and_�range�len)r� r~ r )r� r~ r �and_test� s zMarkerEvaluation.and_testc s; t j t j � � f d d � t d t � � d � D� � S)Nc s# g | ] } � j � | � � q Sr )r{ )r| r} )r� r~ r r r � s z)MarkerEvaluation.test.<locals>.<listcomp>r� r@ )r� r� r� �or_r� r� )r� r~ r )r� r~ r �test� s zMarkerEvaluation.testc C sd | d d } | t j k rT | d d t j k rC t d � � n | j | d � St d � � d S)Nr� r r@ zEmpty parenthesesz5Language feature not supported in environment markers)�token�LPAR�RPARrt r{ )r� r~ �tr r r �atom� s zMarkerEvaluation.atomc C s� t | � d k r! t d � � n | d d } | d } | d t j k r� t | d � d k r� | d k rw d } q� d } q� n y | j | � } Wn( t k r� t t | � d � � Yn X| | j | d � | j | d � � S) Nr� z5Chained comparison not allowed in environment markersr@ r� r r �notznot inzis notz, operator not allowed in environment markers)r� rt r� �NAME�get_opr� r� �evaluate)r� r~ �comp�copr r r � comparison� s zMarkerEvaluation.comparisonc C s� i | j t j 6| j t j 6| j t j 6| j t j 6d d � d 6d d � d 6t j d 6t j d 6} t t d � r� | j | t j <n | | S) Nc S s | | k S)Nr )�x�yr r r r � s z)MarkerEvaluation.get_op.<locals>.<lambda>znot inc S s | | k S)Nr )r� r� r r r r � s �inz==z!=�or_test) r� �symbolr� r� r� r� �eq�ner� r� )r� �op�opsr r r r� � s zMarkerEvaluation.get_opNc C s# | j t j | � j d � d � S)ar Evaluate a PEP 426 environment marker on CPython 2.4+. Return a boolean indicating the marker result in this environment. Raise SyntaxError if marker is invalid. This implementation uses the 'parser' module, which is not implemented on Jython and has been superseded by the 'ast' module in Python 2.6 and later. r� )r{ �parser�expr�totuple)r� rv rj r r r rx � s z MarkerEvaluation.evaluate_markerc C s� d d l m } | j � } x9 | j � D]+ } | j d d � } | j | � | | <q) Wy | j | | � } Wn5 t k r� t j � d } t | j d � � Yn X| S)z� Evaluate a PEP 426 environment marker using markerlib. Return a boolean indicating the marker result in this environment. Raise SyntaxError if marker is invalid. r )� _markerlibr? r� r� ) � pip._vendorr� �default_environmentr r� r r{ � NameErrorrD r rt r= )r� rv r� r r8 �new_key�result�er r r �_markerlib_evaluate� s z$MarkerEvaluation._markerlib_evaluater� c C se x t | � d k r" | d } q Wy | j | d � } Wn t k rZ t d � � Yn X| | � S)Nr@ r� r z)Comparison or logical expression expected)r� r� r� rt )r� r~ r� r r r r{ s zMarkerEvaluation.interpretc C s x t | � d k r" | d } q W| d } | d } | t j k r� y | j | } Wn" t k r{ t d | � � Yn X| � S| t j k r� | d } | d d � d k s� | j d � s� | j d � s� d | k r� t d � � n | d d � St d � � d S) Nr@ r� r zUnknown name %rz'"z"""z'''�\z1Only plain strings allowed in environment markersz5Language feature not supported in environment markersr )r� r� r� r� r� rt �STRINGr� )r� r~ �kindr r� �sr r r r� s$ 4 zMarkerEvaluation.evaluate)r� r� r� rE r� r� rs r� r% rw rW ru r� r� r� r� r� rx r� r r{ r� r r r r rk � s, rk c @ s e Z d Z d Z d Z d Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z e j d) k r� d d � Z n d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d! d" � Z d# d$ � Z d% d& � Z d' d( � Z d S)*r� zETry to implement resources and metadata for arbitrary PEP 302 loadersNc C s: t | d d � | _ t j j t | d d � � | _ d S)Nr� �__file__r� )r� r� r� r� r" � module_path)r� r� r r r r� : s zNullProvider.__init__c C s | j | j | � S)N)�_fnr� )r� r� r� r r r r� > s z"NullProvider.get_resource_filenamec C s t | j | | � � S)N)r r� )r� r� r� r r r r� A s z NullProvider.get_resource_streamc C s | j | j | j | � � S)N)�_getr� r� )r� r� r� r r r r� D s z NullProvider.get_resource_stringc C s | j | j | j | � � S)N)�_hasr� r� )r� r� r r r r� G s zNullProvider.has_resourcec C s% | j o$ | j | j | j | � � S)N)�egg_infor� r� )r� r r r r r� J s zNullProvider.has_metadatar c C s) | j s d S| j | j | j | � � S)Nr� )r� r� r� )r� r r r r r� N s zNullProvider.get_metadatac C s2 | j s d S| j | j | j | � � j d � S)Nr� zutf-8)r� r� r� �decode)r� r r r r r� S s c C s t | j | � � S)N)rs r� )r� r r r r r� X s z NullProvider.get_metadata_linesc C s | j | j | j | � � S)N)�_isdirr� r� )r� r� r r r rZ [ s zNullProvider.resource_isdirc C s% | j o$ | j | j | j | � � S)N)r� r� r� )r� r r r r r� ^ s zNullProvider.metadata_isdirc C s | j | j | j | � � S)N)�_listdirr� r� )r� r� r r r rX a s z NullProvider.resource_listdirc C s) | j r% | j | j | j | � � Sg S)N)r� r� r� )r� r r r r r� d s z NullProvider.metadata_listdirc C s� d | } | j | � s, t d | � � n | j | � j d d � } | j d d � } | j | j | � } | | d <t j j | � r� t | | | � nW d d l m } t | � d | j d � | f | | <t | | d � } t | | | � d S) Nzscripts/zNo script named %rz � � r� r )�cacher )r� rh r� r� r� r� r� r� r� r � linecacher� r� r r r )r� r� r� �script� script_text�script_filenamer� � script_coder r r rN i s %zNullProvider.run_scriptc C s t d � � d S)Nz9Can't perform this operation for unregistered loader type)�NotImplementedError)r� r� r r r r� { s zNullProvider._hasc C s t d � � d S)Nz9Can't perform this operation for unregistered loader type)r� )r� r� r r r r� � s zNullProvider._isdirc C s t d � � d S)Nz9Can't perform this operation for unregistered loader type)r� )r� r� r r r r� � s zNullProvider._listdirc C s& | r" t j j | | j d � � S| S)N�/)r� r� rF r )r� �baser� r r r r� � s zNullProvider._fnc C s2 t | j d � r" | j j | � St d � � d S)N�get_dataz=Can't perform this operation for loaders without 'get_data()')r� r� r� r� )r� r� r r r r� � s zNullProvider._get)r )r� r� r� r� �egg_namer� r� r� r� r� r� r� r� rD ro r� r� rZ r� rX r� rN r� r� r� r� r� r r r r r� 3 s0 c @ s. e Z d Z d Z d d � Z d d � Z d S)r� z&Provider based on a virtual filesystemc C s t j | | � | j � d S)N)r� r� � _setup_prefix)r� r� r r r r� � s zEggProvider.__init__c C s� | j } d } x} | | k r� | j � j d � rm t j j | � | _ t j j | d � | _ | | _ Pn | } t j j | � \ } } q Wd S)Nz.eggzEGG-INFO) r� r- �endswithr� r� �basenamer� rF r� �egg_rootr )r� r� �oldr� r r r r� � s zEggProvider._setup_prefixN)r� r� r� r� r� r� r r r r r� � s c @ sR e Z d Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d S) r� z6Provides access to package resources in the filesystemc C s t j j | � S)N)r� r� r� )r� r� r r r r� � s zDefaultProvider._hasc C s t j j | � S)N)r� r� r )r� r� r r r r� � s zDefaultProvider._isdirc C s t j | � S)N)r� �listdir)r� r� r r r r� � s zDefaultProvider._listdirc C s t | j | j | � d � S)N�rb)r r� r� )r� r� r� r r r r� � s z#DefaultProvider.get_resource_streamc C s/ t | d � } z | j � SWd | j � Xd S)Nr� )r r �close)r� r� �streamr r r r� � s zDefaultProvider._getN) r� r� r� r� r� r� r� r� r� r r r r r� � s c @ sP e Z d Z d Z d d � Z Z d d � Z d d � Z d Z d d � Z d S) r� z.Provider that returns nothing for all requestsc C s d S)NFr )r� r� r r r r � s zEmptyProvider.<lambda>c C s d S)Nr� r )r� r� r r r r � s c C s g S)Nr )r� r� r r r r � s Nc C s d S)Nr )r� r r r r� � s zEmptyProvider.__init__) r� r� r� r� r� r� r� r� r� r� r r r r r� � s c C s� t � } t j | � } zY xR | j � D]D } | j d t j � } | j | � | | <| | d k s( t � q( WWd | j � X| S)af This builds a similar dictionary to the zipimport directory caches. However instead of tuples, ZipInfo objects are stored. The translation of the tuple is as follows: * [0] - zipinfo.filename on stock pythons this needs "/" --> os.sep on pypy it is the same (one reason why distribute did work in some cases on pypy and win32). * [1] - zipinfo.compress_type * [2] - zipinfo.compress_size * [3] - zipinfo.file_size * [4] - len(utf-8 encoding of filename) if zipinfo & 0x800 len(ascii encoding of filename) otherwise * [5] - (zipinfo.date_time[0] - 1980) << 9 | zipinfo.date_time[1] << 5 | zipinfo.date_time[2] * [6] - (zipinfo.date_time[3] - 1980) << 11 | zipinfo.date_time[4] << 5 | (zipinfo.date_time[5] // 2) * [7] - zipinfo.CRC r� N) r& �zipfile�ZipFile�namelistr� r� �sep�getinfo�AssertionErrorr� )r� �zipinfo�zfile�zitem�zpathr r r �build_zipmanifest� s r� c @ s� e Z d Z d Z d Z d d � Z d d � Z d d � Z d d � Z e d d � � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d S) r� z"Resource support for zips and eggsNc C s? t j | | � t | j j � | _ | j j t j | _ d S)N) r� r� r� r� �archiver� r� r� �zip_pre)r� r� r r r r� � s zZipProvider.__init__c C sF | j | j � r) | t | j � d � St d | | j f � � d S)Nz%s is not a subpath of %s)r� r� r� r� )r� �fspathr r r � _zipinfo_name s zZipProvider._zipinfo_namec C sj | j | } | j | j t j � rM | t | j � d d � j t j � St d | | j f � � d S)Nr� z%s is not a subpath of %s)r� r� r� r� r� r� r r� )r� �zip_pathr� r r r �_parts s 'zZipProvider._partsc C s� | j s t d � � n | j | � } | j � } d j | j | � � | k r~ x* | D] } | j | | j | � � qX Wn | j | | � S)Nz5resource_filename() only supported for .egg, not .zipr� )r� r� �_resource_to_zip�_get_eager_resourcesrF r� �_extract_resource� _eager_to_zip)r� r� r� r� �eagersr r r r r� s z!ZipProvider.get_resource_filenamec C s/ | j } | j d } t j | � } | | f S)Nr r� r )r r r )� file_size� date_time�time�mktime)�zip_stat�sizer� � timestampr r r �_get_date_and_size" s z ZipProvider._get_date_and_sizec C s� | | j � k r^ x9 | j � | D]' } | j | t j j | | � � } q# Wt j j | � S| j | j | � \ } } t s� t d � � n y)| j | j | j | � � } | j | | � r� | St d d t j j | � �\ } } t j | | j j | � � t j | � t | | | f � | j | | � y t | | � Wnm t j k r�t j j | � r�| j | | � r�| St j d k r�t | � t | | � | Sn � Yn XWn t j k r�| j � Yn X| S)Nz>"os.rename" and "os.unlink" are not supported on this platformz .$extract�dirrG )�_indexr� r� r� rF r" r� r� r r rF r� r� � _is_current�_mkstemp�writer� r� r� r rU r �error�isfiler r r@ ) r� r� r� r �lastr� r� � real_path�outf�tmpnamr r r r� * s@ $ z ZipProvider._extract_resourcec C s� | j | j | � \ } } t j j | � s2 d St j | � } | j | k s_ | j | k rc d S| j j | � } t | d � } | j � } | j � | | k S)zK Return True if the file_path is current for this zip_path Fr� ) r� r� r� r� r� rJ �st_size�st_mtimer� r� r r r� ) r� � file_pathr� r� r� rJ � zip_contents�f� file_contentsr r r r� [ s zZipProvider._is_currentc C sa | j d k rZ g } x6 d D]. } | j | � r | j | j | � � q q W| | _ n | j S)N�native_libs.txt�eager_resources.txt)r� r� )r� r� r r� )r� r� r r r r r� l s z ZipProvider._get_eager_resourcesc C s� y | j SWn� t k r� i } x� | j D]y } | j t j � } x^ | r� t j j | d d � � } | | k r� | | j | d � PqF | j � g | | <qF Wq+ W| | _ | SYn Xd S)Nr� r r ) � _dirindex�AttributeErrorr� r r� r� rF r� r )r� �indr� �parts�parentr r r r� u s zZipProvider._indexc C s. | j | � } | | j k p- | | j � k S)N)r� r� r� )r� r� r� r r r r� � s zZipProvider._hasc C s | j | � | j � k S)N)r� r� )r� r� r r r r� � s zZipProvider._isdirc C s% t | j � j | j | � f � � S)N)r r� r� r� )r� r� r r r r� � s zZipProvider._listdirc C s | j | j | j | � � S)N)r� r� r� )r� r� r r r r� � s zZipProvider._eager_to_zipc C s | j | j | j | � � S)N)r� r� r� )r� r� r r r r� � s z ZipProvider._resource_to_zip)r� r� r� r� r� r� r� r� r� rW r� r� r� r� r� r� r� r� r� r� r r r r r� � s 1 c @ sF e Z d Z d Z d d � Z d d � Z d d � Z d d � Z d S) r� a* Metadata handler for standalone PKG-INFO files Usage:: metadata = FileMetadata("/path/to/PKG-INFO") This provider rejects all data and metadata requests except for PKG-INFO, which is treated as existing, and will be the contents of the file at the provided location. c C s | | _ d S)N)r� )r� r� r r r r� � s zFileMetadata.__init__c C s | d k S)NzPKG-INFOr )r� r r r r r� � s zFileMetadata.has_metadatac C sH | d k r8 t | j d � } | j � } | j � | St d � � d S)NzPKG-INFO�rUz(No metadata except PKG-INFO is available)r r� r r� r� )r� r r� �metadatar r r r� � s zFileMetadata.get_metadatac C s t | j | � � S)N)rs r� )r� r r r r r� � s z FileMetadata.get_metadata_linesN)r� r� r� r� r� r� r� r� r r r r r� � s c @ s" e Z d Z d Z d d � Z d S)r� aq Metadata provider for egg directories Usage:: # Development eggs: egg_info = "/path/to/PackageName.egg-info" base_dir = os.path.dirname(egg_info) metadata = PathMetadata(base_dir, egg_info) dist_name = os.path.splitext(os.path.basename(egg_info))[0] dist = Distribution(basedir,project_name=dist_name,metadata=metadata) # Unpacked egg directories: egg_path = "/path/to/PackageName-ver-pyver-etc.egg" metadata = PathMetadata(egg_path, os.path.join(egg_path,'EGG-INFO')) dist = Distribution.from_filename(egg_path, metadata=metadata) c C s | | _ | | _ d S)N)r� r� )r� r� r� r r r r� � s zPathMetadata.__init__N)r� r� r� r� r� r r r r r� � s c @ s" e Z d Z d Z d d � Z d S)r� z Metadata provider for .egg filesc C sr t | j � | _ | j t j | _ | | _ | j rX t j j | j | j � | _ n | j | _ | j � d S)z-Create a metadata provider from a zipimporterN) r� r� r� r� r� r� r� �prefixr� rF r� r� )r� �importerr r r r� � s ! zEggMetadata.__init__N)r� r� r� r� r� r r r r r� � s r& �_distribution_findersc C s | t | <d S)ax Register `distribution_finder` to find distributions in sys.path items `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item handler), and `distribution_finder` is a callable that, passed a path item and the importer instance, yields ``Distribution`` instances found on that path item. See ``pkg_resources.find_on_path`` for an example.N)r )� importer_type�distribution_finderr r r r� � s c C s+ t | � } t t | � } | | | | � S)z.Yield distributions accessible via `path_item`)r r� r )� path_item�onlyr �finderr r r r^ � s c c s� | j j d � r d St | � } | j d � rH t j | d | �Vn | rR d Sxf | j d � D]U } | j d � rb t j j | | � } x( t t j | � | � D] } | Vq� Wqb qb Wd S)z@ Find eggs in zip files; possibly multiple nested eggs. z.whlNzPKG-INFOr r� z.egg) r� r� r� r� re � from_filenamerX r� r� rF �find_eggs_in_zip� zipimport� zipimporter)r r r r �subitem�subpathr� r r r r � s r c C s f S)Nr )r r r r r r � find_nothing s r c c s t | � } t j j | � r t j | t j � r | j � j d � rw t j | d t | t j j | d � � �Vq x�t j | � D]}} | j � } | j d � s� | j d � rt j j | | � } t j j | � r� t | | � } n t | � } t j | | | d t �Vq� | r]| j d � r]x� t t j j | | � � D] } | VqKWq� | r� | j d � r� t t j j | | � � } z | j � } Wd | j � XxU | D]J } | j � s�q�n x. t t j j | | j � � � D] } | Vq�WPq�Wq� q� Wn d S) z6Yield distributions accessible on a sys.path directoryz.eggr zEGG-INFOz .egg-infoz .dist-info� precedencez .egg-linkN)�_normalize_cachedr� r� r �access�R_OKr- r� re r r� rF r� r� � from_locationr r^ r � readlinesr� �strip�rstrip) r r r r� r- �fullpathr r� � entry_file� entry_lines�liner� r r r � find_on_path s: ' " ( r �_namespace_handlers�_namespace_packagesc C s | t | <d S)a� Register `namespace_handler` to declare namespace packages `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item handler), and `namespace_handler` is a callable like this:: def namespace_handler(importer,path_entry,moduleName,module): # return a path_entry to use for child packages Namespace handlers are only called if the importer object has already agreed that it can handle the relevant path item, and they should only return a subpath if the module __path__ does not already contain an equivalent subpath. For an example namespace handler, see ``pkg_resources.file_ns_handler``. N)r )r �namespace_handlerr r r r� ; s c C s7 t | � } | d k r d S| j | � } | d k r; d St j j | � } | d k r� t j | � } t j | <g | _ t | � n! t | d � s� t d | � � n t t | � } | | | | | � } | d k r3| j } | j | � | j | � x3 | D]( } | | j k r| j j | � qqWn | S)zEEnsure that named package includes a subpath of path_item (if needed)N�__path__zNot a package:)r � find_modulerD r� r� �imp� new_moduler# �_set_parent_nsr� r� r� r r� � load_module)� packageNamer r r� r� �handlerr r� r r r � _handle_nsL s. r+ c C s t j � z� | t k r d St j d } } d | k r� d j | j d � d d � � } t | � | t k r~ t | � n y t j | j } Wq� t k r� t d | � � Yq� Xn t j | g � j | � t j | g � x | D] } t | | � q� WWd t j � Xd S)z9Declare that package 'packageName' is a namespace packageNr? r� zNot a package:r )r% � acquire_lockr! rD r� rF r r[ r� r� r# r� r� r� r� r+ � release_lock)r) r� r r r r r r[ g s& " c C sb t j � zF x? t j | f � D]+ } t | | � } | r t | | � q q WWd t j � Xd S)zDEnsure that previously-declared namespace packages include path_itemN)r% r, r! r� r+ r� r- )r r �packager r r r r� � s c C s` t j j | | j d � d � } t | � } x+ | j D] } t | � | k r8 Pq8 q8 W| Sd S)zBCompute an ns-package subpath for a filesystem or zipfile importerr? r� Nr )r� r� rF r r r# )r r r) r� r � normalizedr� r r r �file_ns_handler� s " r0 c C s d S)Nr )r r r) r� r r r �null_ns_handler� s r1 c C s t j j t j j | � � S)z1Normalize a file/dir name for comparison purposes)r� r� �normcase�realpath)r# r r r rz � s c C s= y | | SWn* t k r8 t | � | | <} | SYn Xd S)N)r� rz )r# r� r� r r r r � s r c C sU | j d � } | j � } | rQ d j | � } t t j | | t j | � n d S)Nr? )r r rF �setattrrD r� )r) r r r r r r r' � s r' c c s� t | t � rS xn | j � D]0 } | j � } | r | j d � r | Vq q Wn- x* | D]" } x t | � D] } | Vqm WqZ Wd S)zAYield non-empty/non-comment lines of a ``basestring`` or sequence�#N)r� r� � splitlinesr r� rs )�strsr� �ssr r r rs � s z \s*(#.*)?$z\s*\\\s*(#.*)?$z\s*((\w|[-.])+)z!\s*(<=?|>=?|==|!=)\s*((\w|[-.])+)z\s*,z\s*\[z\s*\]z \w+(\.\w+)*$zL(?P<name>[^-]+)( -(?P<ver>[^-]+) (-py(?P<pyver>[^-]+) (-(?P<plat>.+))? )? )?z(\d+ | [a-z]+ | \.| -)�c�pre�previewzfinal-rg �rc�@�devc c s{ xo t j | � D]^ } t | | � } | s | d k r> q n | d d � d k re | j d � Vq d | Vq Wd Vd S)Nr? r� � 0123456789r� �*z*final)� component_rer r� �zfill)r� �partr r r �_parse_version_parts� s rD c C s� g } x� t | j � � D]� } | j d � r� | d k rd x' | r` | d d k r` | j � q= Wn x' | r� | d d k r� | j � qg Wn | j | � q Wt | � S)a� Convert a version string to a chronologically-sortable key This is a rough cross between distutils' StrictVersion and LooseVersion; if you give it versions that would work with StrictVersion, then it behaves the same; otherwise it acts like a slightly-smarter LooseVersion. It is *possible* to create pathological version coding schemes that will fool this parser, but they should be very rare in practice. The returned value will be a tuple of strings. Numeric portions of the version are padded to 8 digits so they will compare numerically, but without relying on how numbers compare relative to strings. Dots are dropped, but dashes are retained. Trailing zeros between alpha segments or dashes are suppressed, so that e.g. "2.4.0" is considered the same as "2.4". Alphanumeric parts are lower-cased. The algorithm assumes that strings like "-" and any alpha string that alphabetically follows "final" represents a "patch level". So, "2.4-1" is assumed to be a branch or patch of "2.4", and therefore "2.4.1" is considered newer than "2.4-1", which in turn is newer than "2.4". Strings like "a", "b", "c", "alpha", "beta", "candidate" and so on (that come before "final" alphabetically) are assumed to be pre-release versions, so that the version "2.4" is considered newer than "2.4a1". Finally, to handle miscellaneous cases, the strings "pre", "preview", and "rc" are treated as if they were "c", i.e. as though they were release candidates, and therefore are not as new as a version string that does not contain them, and "dev" is replaced with an '@' so that it sorts lower than than any other pre-release tag. r@ z*finalr� z*final-�00000000r r )rD r- r� r r� �tuple)r� r rC r r r rn � s c @ s� e Z d Z d Z f f d d d � Z d d � Z d d � Z d d d d d � Z d d d d � Z e d d d � � Z e d d d � � Z e d d d � � Z d S)rg z3Object representing an advertised importable objectNc C sn t | � s t d | � � n | | _ | | _ t | � | _ t j d d j | � � j | _ | | _ d S)NzInvalid module namezx[%s]�,) �MODULErI r � module_namerF �attrsrf r� rF r r� )r� r rI rJ r r� r r r r� s "zEntryPoint.__init__c C sf d | j | j f } | j r< | d d j | j � 7} n | j rb | d d j | j � 7} n | S)Nz%s = %s�:r? z [%s]rG )r rI rJ rF r )r� r� r r r �__str__ s zEntryPoint.__str__c C s d t | � S)NzEntryPoint.parse(%r))r� )r� r r r r� # s zEntryPoint.__repr__Tc C s� | r | j | | � n t | j t � t � d g � } xO | j D]D } y t | | � } WqD t k r� t d | | f � � YqD XqD W| S)Nr� z%r has no %r attribute)rM r� rI r rJ r� r� r� )r� rM r r r� �attrr r r �load& s ! zEntryPoint.loadc C s] | j r% | j r% t d | � � n t t t j t j | j j | j � | | � � � d S)Nz&Can't require() without a distribution) r r� rk r r r\ r� r� r� )r� r r r r r rM 0 s zEntryPoint.requirec C s y� f } } | j d d � \ } } d | k rz | j d d � \ } } t j d | � } | j rn t � n | j } n d | k r� | j d d � \ } } t | j � � s� t � n | j � j d � } n Wn! t k r� t d | � � Yn# X| | j � | j � | | | � Sd S) a Parse a single entry point from string `src` Entry point syntax follows the form:: name = some.module:some.attr [extra1,extra2] The entry name and module name are required, but the ``:attrs`` and ``[extras]`` parts are optional �=r� �[zx[rK r? z9EntryPoint must be in 'name=module:attrs [extras]' formatN) r rf r� �specsrI r rH r r )r� �srcr� rJ r r �valuer� r r r r� 6 s& zEntryPoint.parsec C s� t | � s t d | � � n i } xZ t | � D]L } | j | | � } | j | k rp t d | | j � � n | | | j <q1 W| S)zParse an entry point groupzInvalid group namezDuplicate entry point)rH rI rs r� r )r� rH �linesr� �thisr r� r r r � parse_groupV s zEntryPoint.parse_groupc C s� t | t � r | j � } n t | � } i } x~ | D]v \ } } | d k rj | s[ q7 n t d � � n | j � } | | k r� t d | � � n | j | | | � | | <q7 W| S)z!Parse a map of entry point groupsNz%Entry points must be listed in groupszDuplicate group name)r� r& r, rt rI r rV )r� �datar� �mapsrH rT r r r � parse_mapc s zEntryPoint.parse_map) r� r� r� r� r� rL r� rN rM r% r� rV rY r r r r rg s c C sE | s d St | � } | d j d � rA t | d d � d � S| S)Nr� r� zmd5=r r )r� )r r� r )r �parsedr r r �_remove_md5_fragmentw s r[ c @ s� e Z d Z d Z d Z d d d d e d e d d � Z e d d d � � Z e d d � � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z e d d � � Z e d d � � Z e d d � � Z e d d � � Z f d d! � Z d" d# � Z d d$ d% � Z d& d' � Z d( d) � Z d* d+ � Z d, d- � Z e d d. d/ � � Z d0 d1 � Z d2 d3 � Z d d4 d5 � Z! d6 d7 � Z" d d8 d9 � Z# d: d; � Z$ d< d= � Z% d> d? � Z& e d@ dA � � Z' d S)Bre z5Wrap an actual or potential sys.path entry w/metadatazPKG-INFONc C sj t | p d � | _ | d k r3 t | � | _ n | | _ | | _ | | _ | | _ | p` t | _ d S)N�Unknown) ro r rp �_versionr* rE r r r� � _provider)r� r r r r� r* rE r r r r r� � s zDistribution.__init__c K s� d g d \ } } } } t j j | � \ } } | j � t k r� t | � } | r| | j d d d d � \ } } } } n t | j � } n | | | d | d | d | d | | �S) Nr� r �ver�pyverrJ r r� r* rE )r� r� �splitextr- �_distributionImpl�EGG_NAMErH ) r� r r� r r) r r� r* rE �extrC r r r r � s !zDistribution.from_locationc C s7 t | d f � | j | j t | j � | j | j f S)N�parsed_version)r� r r8 r[ r r* rE )r� r r r r � s zDistribution.<lambda>c C s t | j � S)N)�hash�hashcmp)r� r r r �__hash__� s zDistribution.__hash__c C s | j | j k S)N)rg )r� r3 r r r �__lt__� s zDistribution.__lt__c C s | j | j k S)N)rg )r� r3 r r r �__le__� s zDistribution.__le__c C s | j | j k S)N)rg )r� r3 r r r �__gt__� s zDistribution.__gt__c C s | j | j k S)N)rg )r� r3 r r r �__ge__� s zDistribution.__ge__c C s& t | | j � s d S| j | j k S)NF)r� r� rg )r� r3 r r r �__eq__� s zDistribution.__eq__c C s | | k S)Nr )r� r3 r r r �__ne__� s zDistribution.__ne__c C s> y | j SWn, t k r9 | j j � | _ } | SYn Xd S)N)�_keyr� r r- )r� r8 r r r r8 � s zDistribution.keyc C s> y | j SWn, t k r9 t | j � | _ } | SYn Xd S)N)�_parsed_versionr� rn r� )r� �pvr r r re � s zDistribution.parsed_versionc C s� y | j SWn� t k r� xq | j | j � D]G } | j � j d � r. t | j d d � d j � � | _ | j Sq. Wt d | j | � � Yn Xd S)Nzversion:rK r� z(Missing 'Version:' header and/or %s file) r] r� � _get_metadata�PKG_INFOr- r� rp r r rI )r� r r r r r� � s % zDistribution.versionc C s� y | j SWn� t k r� i g d 6} | _ x� d D]� } x� t | j | � � D]� \ } } | r� d | k r� | j d d � \ } } t | � r� g } q� t | � s� g } q� n t | � p� d } n | j | g � j t | � � qR Wq6 W| SYn Xd S)N� requires.txt� depends.txtrK r� )rt ru ) �_Distribution__dep_mapr� rt rr r rw rx ru r� r rm )r� �dmr rj r� �markerr r r �_dep_map� s " 'zDistribution._dep_mapc C s� | j } g } | j | j d f � � xT | D]L } y | j | t | � � Wq/ t k rz t d | | f � � Yq/ Xq/ W| S)z@List of Requirements needed for this distro if `extras` are usedNz %s has no such extra feature %r)ry r r� ru r� rk )r� r rw �depsrd r r r r� � s zDistribution.requiresc c s5 | j | � r1 x | j | � D] } | Vq Wn d S)N)r� r� )r� r r r r r rr � s zDistribution._get_metadatac C s~ | d k r t j } n | j | � | t j k rz t | j � x6 | j d � D]" } | t j k rQ t | � qQ qQ Wn d S)z>Ensure distribution is importable on `path` (default=sys.path)Nznamespace_packages.txt)rD r� r r� r rr r� r[ )r� r� �pkgr r r �activate s zDistribution.activatec C sO d t | j � t | j � | j p' t f } | j rK | d | j 7} n | S)z@Return what this distribution's standard .egg filename should bez %s-%s-py%srg )rv r r� r* r8 rE )r� r# r r r r� s zDistribution.egg_namec C s( | j r d | | j f St | � Sd S)Nz%s (%s))r r� )r� r r r r� s zDistribution.__repr__c C sN y t | d d � } Wn t k r0 d } Yn X| p: d } d | j | f S)Nr� z[unknown version]z%s %s)r� rI r )r� r� r r r rL s zDistribution.__str__c C s. | j d � r t | � � n t | j | � S)zADelegate all unrecognized public attributes to .metadata providerr� )r� r� r� r^ )r� rM r r r � __getattr__% s zDistribution.__getattr__c K s( | j t | � t j j | � | | � S)N)r r r� r� r� )r� r# r r) r r r r + s zDistribution.from_filenamec C s t j d | j | j f � S)z?Return a ``Requirement`` that matches this distribution exactlyz%s==%s)rf r� r r� )r� r r r r 2 s zDistribution.as_requirementc C sD | j | | � } | d k r: t d | | f f � � n | j � S)z=Return the `name` entry point of `group` or raise ImportErrorNzEntry point %r not found)rS r� rN )r� rH r r� r r r rQ 6 s z Distribution.load_entry_pointc C sd y | j } Wn4 t k rC t j | j d � | � } | _ Yn X| d k r` | j | i � S| S)z=Return the entry point map for `group`, or the full entry mapzentry_points.txtN)�_ep_mapr� rg rY rr r� )r� rH �ep_mapr r r rR = s ! zDistribution.get_entry_mapc C s | j | � j | � S)z<Return the EntryPoint object for `group`+`name`, or ``None``)rR r� )r� rH r r r r rS I s zDistribution.get_entry_infoc C sN | p | j } | s d St | � } t j j | � } d d � | D� } x� t | � D]w \ } } | | k rs PqW | | k rW | j t k rW | t j k r� | j � n | j | | � | j | | � PqW qW W| t j k r� | j � n | j | � d SxH y | j | | d � } Wn t k r1PYqX| | =| | =| } qWd S)z@Insert self.location in path before its nearest parent directoryNc S s( g | ] } | r t | � p! | � q Sr )r )r| �pr r r r V s z*Distribution.insert_on.<locals>.<listcomp>r� )r r r� r� r" � enumerater r{ rD �check_version_conflictr r� �indexrI ) r� r� �loc�nloc�bdir�npathr� r� �npr r r r M s6 zDistribution.insert_onc C s� | j d k r d St j | j d � � } t | j � } x� | j d � D]� } | t j k sJ | | k sJ | t k r} qJ n | d k r� qJ n t t j | d d � } | r� t | � j | � sJ | j | j � r� qJ n t d | | | j f � qJ Wd S) N� setuptoolsznamespace_packages.txtz top_level.txt� pkg_resources�siter� zIModule %s was already imported from %s, but %s is being added to sys.path)z pkg_resourcesz setuptoolszsite) r8 r& r' rr rz r rD r� r! r� r� � issue_warning)r� �nspr� �modnamer r r r r� t s" z#Distribution.check_version_conflictc C s< y | j Wn* t k r7 t d t | � � d SYn Xd S)NzUnbuilt egg for FT)r� rI r� r� )r� r r r r0 � s zDistribution.has_versionc K sM x* d D]" } | j | t | | d � � q W| j d | j � | j | � S) z@Copy this distribution, substituting in any changed keyword argsr r� r* rE r r Nr )z project_namezversionz py_versionzplatformzlocationz precedence)r� r� r^ r� )r� r) rM r r r �clone� s zDistribution.clonec C s d d � | j D� S)Nc S s g | ] } | r | � q Sr r )r| �depr r r r � s z'Distribution.extras.<locals>.<listcomp>)ry )r� r r r r � s zDistribution.extras)(r� r� r� r� rs r8 r{ r� r% r �propertyrg rh ri rj rk rl rm rn r8 re r� ry r� rr r| r� r� rL r} r r rQ rR rS r r� r0 r� r r r r r re � sL ' c @ sg e Z d Z d Z d Z e j d � Z e d d � � Z e d d � � Z d d � Z d d � Z d S) �DistInfoDistributionzGWrap an actual or potential sys.path entry w/metadata, .dist-info style�METADATAz([\(,])\s*(\d.*?)\s*([,\)])c C s\ y | j SWnJ t k rW d d l m } | � j | j | j � � | _ | j SYn Xd S)zParse and cache metadatar )�ParserN)� _pkg_infor� � email.parserr� �parsestrr� rs )r� r� r r r �_parsed_pkg_info� s !z%DistInfoDistribution._parsed_pkg_infoc C s: y | j SWn( t k r5 | j � | _ | j SYn Xd S)N)� _DistInfoDistribution__dep_mapr� �_compute_dependencies)r� r r r ry � s z DistInfoDistribution._dep_mapc C sy | j d d � d g } | d j � } | d j � } t j | j d | � } | j d d � j d d � } | | f S)z�Convert 'Foobar (1); baz' to ('Foobar ==1', 'baz') Split environment marker, add == prefix to version specifiers as necessary, and remove parenthesis. �;r� r� r z\1==\2\3�(�))r r rh ri �EQEQr� )r� � requires_distr �distvers�markr r r �_preparse_requirement� s z*DistInfoDistribution._preparse_requirementc s d d l m } i g d 6} | _ g � xc | j j d � pB g D]I } | j | � \ } } t t | � � } | | � | _ � j | � qC W� f d d � } t | d � � } | d j | � xR | j j d � p� g D]8 } t | j � � } t t | | � � | � | | <q� W| S)z+Recompute this distribution's dependencies.r )r Nz Requires-Distc 3 s6 x/ � D]' } | j d i | d 6� r | Vq q Wd S)N�overriderj )� marker_fn)rj r� )r� r r �reqs_for_extra� s zBDistInfoDistribution._compute_dependencies.<locals>.reqs_for_extrazProvides-Extra)�pip._vendor._markerlibr r� r� �get_allr� r rm r� r� � frozensetr ru r r ) r� �compile_markerrw r� r� r� rZ r� �commonrj r )r� r r� � s $z*DistInfoDistribution._compute_dependenciesN) r� r� r� r� rs rh r r� r� r� ry r� r� r r r r r� � s r� z.eggz .egg-infoz .dist-infoc O s| d } t � } y- x& t j | � j | k r: | d 7} q WWn t k rP Yn Xd d l m } | d | d | | � d S)Nr� r )rO � stacklevel)r rD r� r� rI rN rO )r= r) �levelr. rO r r r r� � s r� c # s t t | � � � � f d d � } x� � D]� } t | � } | sU t d | � � n | j d � } | j � } g } t | | � } | r� | j � } | t t | | d d � \ } } } n | t t | | d d � \ } } } d d � | D� } t | | | � Vq+ Wd S) z�Yield ``Requirement`` objects for each specification in `strs` `strs` must be an instance of ``basestring``, or a (possibly-nested) iterable thereof. c sL g } x| | | � st | | � ra y t � � } d } Wqa t k r] t d � � Yqa Xn | | | � } | s� t d | d | d | | d � � � n | j | j | � � | j � } t | | � } | r� | j � } q | | | � s t d | d | | d � � � q q W| | | � } | r?| j � } n | | | f S)Nr z+\ must not appear on the last nonblank linez Expected z in�atz Expected ',' or end-of-list in)�CONTINUEr � StopIterationrI r� rH �end�COMMA)�ITEM� TERMINATORr r� �groups� item_namer, rC )rT r r � scan_list� s0 * # z%parse_requirements.<locals>.scan_listzMissing distribution specr� z 'extra' namer@ z version specc S s( g | ] \ } } | t | � f � q Sr )rp )r| r� r5 r r r r . s z&parse_requirements.<locals>.<listcomp>N)r� )r� r@ ) �iterrs �DISTROrI rH r� �OBRACKET�CBRACKET�VERSION�LINE_ENDrf )r7 r� r rC r r� r rQ r )rT r rm � s" ! $$c C sA d d � | D� } | j � d d � | D� | d d d � <d S)Nc S s g | ] } | j | f � q Sr )rg )r| r� r r r r 3 s z _sort_dists.<locals>.<listcomp>c S s g | ] \ } } | � q Sr r )r| �hc�dr r r r 5 s r� r )r )r� �tmpr r r r. 2 s r. c @ sj e Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z e d d � � Z d S)rf c C s� | t | � | _ } | | j � | _ | _ d d � | D� } | j � d d � | D� | _ | t t t | � � | _ | _ | j t d d � | D� � t | j � f | _ t | j � | _ d S)z>DO NOT CALL THIS UNDOCUMENTED METHOD; use Requirement.parse()!c S s2 g | ]( \ } } t | � t | | | f � q Sr )rn � state_machine)r| r� r0 r r r r = s z(Requirement.__init__.<locals>.<listcomp>c S s( g | ] \ } } } } | | f � q Sr r )r| rZ �transr� r_ r r r r ? s c S s( g | ] \ } } } } | | f � q Sr r )r| rZ r� r� r_ r r r r B s N)ro � unsafe_namer- r r8 r rQ rF r ru r� r r� �hashCmprf �_Requirement__hash)r� r rQ r r� r r r r� 9 s " zRequirement.__init__c C sX d j d d � | j D� � } d j | j � } | rD d | } n d | j | | f S)NrG c S s g | ] } d j | � � q S)r� )rF )r| r� r r r r H s z'Requirement.__str__.<locals>.<listcomp>z[%s]z%s%s%s)rF rQ r r )r� rQ r r r r rL G s zRequirement.__str__c C s t | t � o | j | j k S)N)r� rf r� )r� r3 r r r rm M s zRequirement.__eq__c C s t | t � r= | j | j k r% d S| j r[ | j } q[ n t | t � r[ t | � } n d } d d � } x� | j D]{ \ } } } } | | | | � } | d k r� d S| d k r� d S| d k r� d } qw | d k s� | d k rw d } qw qw W| d k r d } n | S) NFc S s | | k | | k S)Nr )�a�br r r r W s z*Requirement.__contains__.<locals>.<lambda>�F�TT�+rg )r� re r8 r� re r� rn ) r� r� r� �comparerZ r� r� r_ �actionr r r r� P s, zRequirement.__contains__c C s | j S)N)r� )r� r r r rh d s zRequirement.__hash__c C s d t | � S)NzRequirement.parse(%r))r� )r� r r r r� g s zRequirement.__repr__c C sW t t | � � } | rD t | � d k r2 | d St d | � � n t d | � � d S)Nr� r z Expected only one requirementzNo requirements found)r rm r� rI )r� r� r r r r� i s zRequirement.parseN) r� r� r� r� rL rm r� rh r� rW r� r r r r rf 8 s z--T�<zT-Tz<=zF+F�>zT+Fz>=zT..z==zF++z!=c C s@ t | t � s9 Gd d � d | t � } | j d d � S| j S)z&Get an mro for a type or classic classc @ s e Z d Z d S)z_get_mro.<locals>.clsN)r� r� r� r r r r r� � s r� r� N)r� �type�object�__mro__)r� r r r �_get_mro} s r� c C sA x: t t | d t | � � � D] } | | k r | | Sq Wd S)z2Return an adapter factory for `ob` from `registry`r� N)r� r� r� )�registryr9 r� r r r r� � s % r� c C s8 t j j | � } t j j | � s4 t j | � n d S)z1Ensure that the parent directory of `path` existsN)r� r� r" r �makedirs)r� r" r r r ry � s c c s� d } g } x� t | � D]| } | j d � r� | j d � rv | sI | rW | | f Vn | d d � j � } g } q� t d | � � q | j | � q W| | f Vd S)ar Split a string or iterable thereof into (section,content) pairs Each ``section`` is a stripped version of the section header ("[section]") and each ``content`` is a list of stripped lines excluding blank lines and comment-only lines. If there are any such lines before the first section header, they're returned in a first ``section`` of ``None``. NrP �]r� zInvalid section headingr )rs r� r� r rI r� )r� �section�contentr r r r rt � s c O sD d d l m } t j } z t t _ | | | � SWd | t _ Xd S)Nr )�mkstemp)�tempfiler� r� r �os_open)r= r) r� �old_openr r r r� � s r� c C s@ x9 t t � D]+ } | j d � s t t | � | | <q q Wd S)Nr� )r� �_managerr� r� )r. r r r r � _initialize� s r� r� c C s | j � S)N)r| )r� r r r r � s )�r� rD r� r� rh r% r� r rN rJ r� �pkgutilr� r� r� rE r r r r� � urllib.parser� r� Zsetsr r� r � cStringIOr r r� �ior r r r r r r r� �os.pathr r ro �implementationr Zimportlib._bootstrap� _bootstrap�importlib_bootstrapr� r r% r* r1 r3 r6 r: r; r< � _sget_none� _sset_nonerL �__all__� Exceptionrh ri rj rk r� r� r8 r{ r| r} r~ r r� rO rG r� rA r rB r� rq rr rN r� rP rQ rR rS r� r� r� rc rb r� rc rl rd ra ro rp ru rv rk rw rw rx r� r� r� r� �SourceFileLoaderr� r� r� r� r r� r� r� r� r^ r r r � ImpImporter� FileFinderr� r+ r[ r� r0 r1 rz r r' rs rC r� r� r� r� r� r� r� rH �VERBOSE� IGNORECASErc rA r� r� rD rn rg r[ re r� rb r� rm r. rf r� r� r� ry rt r� r� r� r r� r\ rM rT r# r] r� r r r� r� r r r r �<module> s� ' 1 � Y�� ) � c !� ( , )h � !? > :
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