Edit File: __init__.cpython-36.opt-1.pyc
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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. )r5 N) � insert_onr� �locationr� r r' r� r; � _added_new)r r� r� �insertr5 �keysZkeys2r r r r � s zWorkingSet.addc C s| t |�ddd� }i }i }g }t� }tjt�} �xF|�rv|jd�} | |krLq2|j| �sXq2|j| j�} | dk�r | j j| j�} | dks�| | kr�|r�| } |dkr�| dkr�t | j �}nt g �}t g �} |j | | |� } || j< | dkr�| j| d�} t| | ��|j| � | | k�r"| | }t| | �j|��| j| j�ddd� }|j|� x(|D ] }| | j| j� | j||< �qHW d|| < q2W |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 Tr7 r7 )�list� _ReqExtras� collections� defaultdict�setr: � markers_passrB r' r� r� r� r� � best_matchr� r; r� r� r �extras�extendr � project_name)r � requirements�env� installerZreplace_conflictingZ processedZbestZ to_activateZ req_extrasr� r� r� r r� Z dependent_reqZnew_requirementsZnew_requirementr r r r sJ zWorkingSet.resolvec C s t |�}|j� i }i }|dkr4t| j�}||7 }n|| }| jg �} t t| j| �� x�|D ]�} x�|| D ]x} | j� g} y| j| ||�} W n4 t k r� } z||| < |r�wjnP W Y dd}~X qjX t t| j| �� |j t j | �� P qjW q\W t |�}|j� ||fS )as 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) r �sortr� r� r r r �as_requirementr r� rP rR rS )r Z plugin_envZfull_envr ZfallbackZplugin_projectsZ error_infoZ distributionsr Z shadow_setr r� r� Z resolveesrM r r r � find_pluginsk s4 $ zWorkingSet.find_pluginsc G s* | j t|��}x|D ]}| j|� qW |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 r� r )r r Zneededr� r r r rt � s zWorkingSet.requirec C s< || j krdS | j j|� |s"dS x| D ] }||� q(W dS )z�Invoke `callback` for all distributions If `existing=True` (default), call on all existing ones, as well. N)r� r; )r �callback�existingr� r r r � subscribe� s zWorkingSet.subscribec C s x| j D ] }||� qW d S )N)r� )r r� r$ r r r r � s zWorkingSet._added_newc C s, | j d d � | jj� | jj� | jd d � fS )N)r� r� r\ r� r� )r r r r rZ � s zWorkingSet.__getstate__c C s@ |\}}}}|d d � | _ |j� | _|j� | _|d d � | _d S )N)r� r\ r� r� r� )r Ze_k_b_cr� r r� r� r r r r[ � s zWorkingSet.__setstate__)N)N)NTF)NNF)NNT)T)r r r r r� � classmethodr r r� r r� r{ ru rG r r r# rt r& r rZ r[ r r r r r� v s( Q S c @ s e Zd ZdZdd� ZdS )r z> Map each requirement to the extras that demanded it. c s. � fdd�| j � f �d D �}� j p,t|�S )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 s | ]}� j jd |i�V qdS )�extraN)�marker�evaluate)�.0r( )r� r r � <genexpr>� s z*_ReqExtras.markers_pass.<locals>.<genexpr>N)N)rB r) �any)r r� Z extra_evalsr )r� r r � s z_ReqExtras.markers_passN)r r r r r r r r r r � s r c @ sx e Zd ZdZde� efdd�Zdd� Zdd� Zdd d �Z d d � Z d d� Z ddd�Z ddd�Z dd� Zdd� Zdd� ZdS ) r� z5Searchable snapshot of distributions on a search pathNc C s i | _ || _|| _| j|� dS )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)�_distmaprl �python�scan)r � search_pathrl r/ r r r r� s zEnvironment.__init__c C s. | j dks |jdks |j| j ko,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_versionr� rl )r r� r r r �can_add s zEnvironment.can_addc C s | j |j j|� dS )z"Remove `dist` from the environmentN)r. r' �remove)r r� r r r r4 ( s zEnvironment.removec C s< |dkrt j}x(|D ] }xt|�D ]}| j|� q"W qW dS )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)rk r� r� r )r r1 r r� r r r r0 , s zEnvironment.scanc C s |j � }| jj|g �S )a Return 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. )r8 r. rB )r r Zdistribution_keyr r r r( ; s zEnvironment.__getitem__c C sL | j |�rH|j� rH| jj|jg �}||krH|j|� |jtjd�dd� dS )zLAdd `dist` if we ``can_add()`` it and it has not already been added �hashcmpT)r' �reverseN) r3 � has_versionr. r r' r; r! �operator� attrgetter)r r� r r r r r F s zEnvironment.addc C sB |j |�}|dk r|S x | |j D ]}||kr"|S q"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� r' �obtain)r r� r� r r� r r r r O s zEnvironment.best_matchc C s |dk r||�S dS )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 Z requirementr r r r r: e s zEnvironment.obtainc c s& x | j j� D ]}| | r |V q W dS )z=Yield the unique project names of the available distributionsN)r. r )r r' r r r rG q s zEnvironment.__iter__c C s^ t |t�r| j|� nDt |t�rLx8|D ] }x|| D ]}| j|� q4W q&W ntd|f ��| S )z2In-place addition of a distribution or environmentzCan't add %r to environment)r r� r r� r� )r r! Zprojectr� r r r �__iadd__w s zEnvironment.__iadd__c C s. | j g ddd�}x| |fD ] }||7 }qW |S )z4Add an environment or distribution to an environmentN)rl r/ )r )r r! �newr r r r �__add__� s zEnvironment.__add__)N)N)N)r r r r rs �PY_MAJORr� r3 r4 r0 r( r r r: rG r; r= r r r r r� s c @ s e Zd ZdZdS )r� 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 r� � s c @ s� e Zd ZdZdZdd� Zdd� Zdd� Zd d � Zd d � Z d d� Z dd� Z dd� Z f fdd�Z edd� �Zdd� Zdd� Zd d d �ZdS ) r� 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?)rv r� )r �package_or_requirementr� r r r r� � s z ResourceManager.resource_existsc C s t |�j|�S )z,Is the named resource an existing directory?)rv r� )r r@ r� r r r r� � s z ResourceManager.resource_isdirc C s t |�j| |�S )z4Return a true filesystem path for specified resource)rv r� )r r@ r� r r r r~ � s z!ResourceManager.resource_filenamec C s t |�j| |�S )z9Return a readable file-like object for specified resource)rv r� )r r@ r� r r r r} � s z ResourceManager.resource_streamc C s t |�j| |�S )z%Return specified resource as a string)rv r� )r r@ r� r r r r| � s z ResourceManager.resource_stringc C s t |�j|�S )z1List the contents of the named resource directory)rv r )r r@ r� r r r r � s z ResourceManager.resource_listdirc C sR t j� d }| jpt� }tjd�j� }t|jf t � ��}| |_ ||_ ||_ |�dS )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. N) rk �exc_info�extraction_pathr� �textwrap�dedent�lstripr� r� r� r� � cache_pathZoriginal_error)r �old_excrF �tmpl�errr r r �extraction_error� s z ResourceManager.extraction_errorc C s^ | j p t� }tjj||d f|�� }y t|� W n | j� Y nX | 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- ) rB r� r� r� rm �_bypass_ensure_directoryrJ � _warn_unsafe_extraction_pathr? )r Z archive_name�namesZ extract_pathZ target_pathr r r �get_cache_path� s z ResourceManager.get_cache_pathc C sX t jdkr | jt jd � r dS t j| �j}|tj@ s@|tj@ rTd| }tj |t � dS )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. �ntZwindirNz�%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� r9 �environ�stat�st_mode�S_IWOTH�S_IWGRPrC rD � UserWarning)r� �mode�msgr r r rL � s z,ResourceManager._warn_unsafe_extraction_pathc C s. t jdkr*t j|�jdB d@ }t j||� dS )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� rQ rR �chmod)r Ztempname�filenamerV r r r � postprocess s zResourceManager.postprocessc C s | j rtd��|| _dS )a� Set the base path where resources will be extracted to, if needed. 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(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? rp rB )r r� r r r r� ) s z#ResourceManager.set_extraction_pathFc C s dS )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� C s z!ResourceManager.cleanup_resources)F)r r r r rB r� r� r� r~ r} r| r rJ rN � staticmethodrL r[ r� r� r r r r r� � s c C s t jjd�ptjdd�S )z� Return the ``PYTHON_EGG_CACHE`` environment variable or a platform-relevant user cache dir for an app named "Python-Eggs". ZPYTHON_EGG_CACHEz Python-Eggs)Zappname)r� rP rB r Zuser_cache_dirr r r r r� Q s c C s t jdd| �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.]+r+ )r? �sub)r� r r r r� ] s c C sD yt tjj| ��S tjjk r> | jdd�} tjdd| �S X dS )zB Convert an arbitrary string to a standard version string r� r, z[^A-Za-z0-9.]+r+ N)rF r rK �VersionrL r5 r? r^ )rK r r r r� e s c C s t jdd| �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� )r? r^ r8 )r( r r r r� q s c C s | j dd�S )z|Convert a project or version name to its filename-escaped form Any '-' characters are currently replaced with '_'. r+ r� )r5 )r� r r r r� z s c C s> y t | � W n, tk r8 } zd|_d|_|S d}~X nX dS )zo Validate text as a PEP 508 environment marker; return an exception if invalid or False otherwise. 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N)r ZmarkersZMarkerr* Z InvalidMarkerr` )rb r( r) rc r r r r� � s c @ s� e Zd ZdZdZdZdZdd� Zdd� Zdd� Z d d � Z d d � Z d d� Z dd� Z dd� Zdd� Zdd� Zdd� Zdd� Zdd � Zd d � Zd d � Zd!d"� Zd#d$� Zd%d&� ZdS )'r� zETry to implement resources and metadata for arbitrary PEP 302 loadersNc C s( t |dd �| _tjjt |dd��| _d S )Nr� �__file__r� )r� r� r� r� �dirname� module_path)r r� r r r r� � s zNullProvider.__init__c C s | j | j|�S )N)�_fnrf )r r� r� r r r r� � s z"NullProvider.get_resource_filenamec C s t j| j||��S )N)�io�BytesIOr� )r r� r� r r r r� � s z NullProvider.get_resource_streamc C s | j | j| j|��S )N)�_getrg rf )r r� r� r r r r� � s z NullProvider.get_resource_stringc C s | j | j| j|��S )N)�_hasrg rf )r r� r r r r� � s zNullProvider.has_resourcec C s | j o| j| j| j |��S )N)�egg_infork rg )r r� r r r r� � s zNullProvider.has_metadatac C s2 | j s dS | j| j| j |��}tjr.|jd�S |S )Nr� zutf-8)rl rj rg r ZPY3�decode)r r� �valuer r r r� � s zNullProvider.get_metadatac C s t | j|��S )N)r� r� )r r� r r r r� � s z NullProvider.get_metadata_linesc C s | j | j| j|��S )N)�_isdirrg rf )r r� r r r r� � s zNullProvider.resource_isdirc C s | j o| j| j| j |��S )N)rl ro rg )r r� r r r r� � s zNullProvider.metadata_isdirc C s | j | j| j|��S )N)�_listdirrg rf )r r� r r r r � s z NullProvider.resource_listdirc C s | j r| j| j| j |��S g S )N)rl rp rg )r r� r r r r� � s z NullProvider.metadata_listdirc C s� d| }| j |�s td| ��| j|�jdd�}|jdd�}| j| j|�}||d< tjj|�r�t |�j � }t ||d�}t |||� n>dd l m} t|�d|jd�|f||< t ||d�} t | ||� d S ) Nzscripts/zNo script named %rz � � rd �execr )�cache)r� r� r� r5 rg rl r� r� r� r �readr@ rs � linecachert �lenr ) r r� r� ZscriptZ script_textZscript_filename�source�codert Z script_coder r r ru � 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 rk � s zNullProvider._hasc C s t d��d S )Nz9Can't perform this operation for unregistered loader type)rz )r r� r r r ro � s zNullProvider._isdirc C s t d��d S )Nz9Can't perform this operation for unregistered loader type)rz )r r� r r r rp � s zNullProvider._listdirc C s |r t jj|f|jd��� S |S )N�/)r� r� rm r )r �baser� r r r rg � s zNullProvider._fnc C s$ t | jd�r| jj|�S td��d S )N�get_dataz=Can't perform this operation for loaders without 'get_data()')r� r� r} rz )r r� r r r rj � s zNullProvider._get)r r r r �egg_namerl r� r� r� r� r� r� r� r� r� r� r� r r� ru rk ro rp rg rj r r r r r� � s, c @ s e Zd ZdZdd� Zdd� ZdS )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 }xN||krXt|�rBtjj|�| _tjj|d�| _|| _P |}tjj |�\}}q W d S )NzEGG-INFO) rf �_is_unpacked_eggr� r� �basenamer~ rm rl �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 @ sD e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Ze d d � �Z dS )r� z6Provides access to package resources in the filesystemc C s t jj|�S )N)r� r� r� )r r� r r r rk s zDefaultProvider._hasc C s t jj|�S )N)r� r� r )r r� r r r ro s zDefaultProvider._isdirc C s t j|�S )N)r� �listdir)r r� r r r rp " s zDefaultProvider._listdirc C s t | j| j|�d�S )N�rb)r rg rf )r r� r� r r r r� % s z#DefaultProvider.get_resource_streamc C s t |d�� }|j� S Q R X d S )Nr� )r ru )r r� �streamr r r rj ( s zDefaultProvider._getc C s t tdtd ��}t|| � d S )N�SourceFileLoader)r� �importlib_machinery�typer� )r Z loader_clsr r r � _register, s zDefaultProvider._registerN) r r r r rk ro rp r� rj r' r� r r r r r� s c @ s8 e Zd ZdZdd� ZZdd� Zdd� ZdZdd� Z dS ) r� z.Provider that returns nothing for all requestsc C s dS )NFr )r r� r r r re 9 s zEmptyProvider.<lambda>c C s dS )Nr� r )r r� r r r re : s c C s g S )Nr )r r� r r r re ; s Nc C s d S )Nr )r r r r r� > s zEmptyProvider.__init__) r r r r ro rk rj rp rf r� r r r r r� 6 s c @ s e Zd ZdZedd� �ZeZdS )� ZipManifestsz zip manifest builder c s2 t |�� � � fdd�� j� D �}t|�S Q R X dS )a Build a dictionary similar to the zipimport directory caches, except instead of tuples, store ZipInfo objects. Use a platform-specific path separator (os.sep) for the path keys for compatibility with pypy on Windows. c 3 s& | ] }|j d tj�� j|�fV qdS )r{ N)r5 r� �sepZgetinfo)r+ r� )�zfiler r r, U s z%ZipManifests.build.<locals>.<genexpr>N)�ContextualZipFileZnamelistrR )r r� rV r )r� r �buildJ s zZipManifests.buildN)r r r r r' r� �loadr r r r r� E s r� c @ s$ e Zd ZdZejdd�Zdd� ZdS )�MemoizedZipManifestsz% Memoized zipfile manifests. � manifest_modzmanifest mtimec C sR t jj|�}t j|�j}|| ks.| | j|krH| j|�}| j||�| |< | | jS )zW Load a manifest at path or return a suitable manifest already loaded. ) r� r� �normpathrQ �st_mtime�mtimer� r� �manifest)r r� r� r� r r r r� f s zMemoizedZipManifests.loadN)r r r r r � namedtupler� r� r r r r r� ` s r� c s0 e Zd ZdZdd� Zdd� Z� fdd�Z� ZS )r� zL Supplement ZipFile class to support context manager for Python 2.6 c C s | S )Nr )r r r r � __enter__y s zContextualZipFile.__enter__c C s | j � d S )N)�close)r r� rn � tracebackr r r �__exit__| s zContextualZipFile.__exit__c s( t tjd�rtj||�S tt| �j| �S )zI Construct a ZipFile or ContextualZipFile as appropriate r� )r� �zipfile�ZipFiler r� �__new__)r rd �kwargs)r r r r� s zContextualZipFile.__new__)r r r r r� r� r� rH r r )r r r� t s r� c @ s� e Zd ZdZdZe� Zdd� Zdd� Zdd� Z e d d � �Z d d � Z e d d� �Zdd� Zdd� Zdd� Zdd� Zdd� Zdd� Zdd � Zd d � Zd d � ZdS )!r� z"Resource support for zips and eggsNc C s t j| |� | jjtj | _d S )N)r� r� r� �archiver� r� �zip_pre)r r� r r r r� � s zZipProvider.__init__c C s4 |j | j�r |t| j�d � S td|| jf ��d S )Nz%s is not a subpath of %s)r9 r� rw �AssertionError)r �fspathr r r � _zipinfo_name� s zZipProvider._zipinfo_namec C sP | j | }|j| jtj �r:|t| j�d d � jtj�S td|| jf ��d S )Nr- z%s is not a subpath of %s)r� r9 r� r� r� rw r r� )r �zip_pathr� r r r �_parts� s zZipProvider._partsc C s | j j| jj�S )N)�_zip_manifestsr� r� r� )r r r r �zipinfo� s zZipProvider.zipinfoc C s` | j std��| j|�}| j� }dj| j|��|krTx |D ]}| j|| j|�� q:W | j||�S )Nz5resource_filename() only supported for .egg, not .zipr{ )r~ rz �_resource_to_zip�_get_eager_resourcesrm r� �_extract_resource� _eager_to_zip)r r� r� r� �eagersr� r r r r� � s z!ZipProvider.get_resource_filenamec C s" | j }| jd }tj|�}||fS )Nr r- r7 )r r r7 )Z file_size� date_time�timeZmktime)Zzip_stat�sizer� � timestampr r r �_get_date_and_size� s z ZipProvider._get_date_and_sizec C sn || j � krDx*| j � | D ]}| j|tjj||��}qW tjj|�S | j| j| �\}}tsdt d��y�|j | j | j |��}| j ||�r�|S tdtjj|�d�\}} tj|| jj|�� tj|� t| ||f� |j| |� yt| |� W n\ tjk �rD tjj|��r>| j ||��r |S tjdk�r>t|� t| |� |S � Y nX W n tjk �rh |j� Y nX |S )Nz>"os.rename" and "os.unlink" are not supported on this platformz .$extract)�dirrO )�_indexr� r� r� rm re r� r� � WRITE_SUPPORT�IOErrorrN r~ r� � _is_current�_mkstemp�writer� r} r� r r[ r �error�isfiler� r rJ ) r r� r� r� Zlastr� r� Z real_pathZoutfZtmpnamr r r r� � s@ z ZipProvider._extract_resourcec C sx | j | j| �\}}tjj|�s$dS tj|�}|j|ksB|j|krFdS | jj |�}t |d��}|j � }W dQ R X ||kS )zK Return True if the file_path is current for this zip_path Fr� N) r� r� r� r� r� rQ �st_sizer� r� r} r ru ) r Z file_pathr� r� r� rQ Z zip_contents�fZ file_contentsr r r r� � s zZipProvider._is_currentc C sB | j d kr<g }x&dD ] }| j|�r|j| j|�� qW || _ | j S )N�native_libs.txt�eager_resources.txt)r� r� )r� r� r r� )r r� r� r r r r� s z ZipProvider._get_eager_resourcesc C s� y| j S tk r� i }xd| jD ]Z}|jtj�}xH|rztjj|d d� �}||krj|| j|d � P q4|j� g||< q4W q"W || _ |S X d S )Nr- r7 r7 ) Z _dirindex�AttributeErrorr� r r� r� rm r; r: )r Zindr� r< �parentr r r r� s zZipProvider._indexc C s | j |�}|| jkp || j� kS )N)r� r� r� )r r� r� r r r rk s zZipProvider._hasc C s | j |�| j� kS )N)r� r� )r r� r r r ro ! s zZipProvider._isdirc C s t | j� j| j|�f ��S )N)r r� rB r� )r r� r r r rp $ s zZipProvider._listdirc C s | j | j| j|��S )N)r� rg r� )r r� r r r r� ' s zZipProvider._eager_to_zipc C s | j | j| j|��S )N)r� rg rf )r r� r r r r� * s z ZipProvider._resource_to_zip)r r r r r� r� r� r� r� r� r� r� r� r] r� r� r� r� r� rk ro rp r� r� r r r r r� � s$ 4 c @ s8 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd 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 |dkot jj| j�S )NzPKG-INFO)r� r� r� )r r� r r r r� @ s zFileMetadata.has_metadatac C sD |dkrt d��tj| jddd��}|j� }W d Q R X | j|� |S )NzPKG-INFOz(No metadata except PKG-INFO is availablezutf-8r5 )�encoding�errors)r� rh r r� ru �_warn_on_replacement)r r� r� �metadatar r r r� C s zFileMetadata.get_metadatac C s2 dj d�}||kr.d}|jf t� �}tj|� d S )Ns �zutf-8z2{self.path} could not be properly decoded in UTF-8)rm r� r� rC rD )r r� Zreplacement_charrH rW r r r r� L s z!FileMetadata._warn_on_replacementc C s t | j|��S )N)r� r� )r r� r r r r� T s z FileMetadata.get_metadata_linesN) r r r r r� r� r� r� r� r r r r r� 1 s c @ s e Zd ZdZdd� ZdS )r� as 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)rf rl )r r� rl r r r r� l s zPathMetadata.__init__N)r r r r r� r r r r r� X s c @ s e Zd ZdZdd� ZdS )r� z Metadata provider for .egg filesc C sD |j tj | _|| _|jr0tjj|j |j�| _n|j | _| j � dS )z-Create a metadata provider from a zipimporterN) r� r� r� r� r� �prefixr� rm rf r )r �importerr r r r� t s zEggMetadata.__init__N)r r r r r� r r r r r� q s rR )�_distribution_findersc C s |t | < dS )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_typeZdistribution_finderr r r r� � s c C s t | �}tt|�}||| |�S )z.Yield distributions accessible via `path_item`)r r� r� )� path_item�onlyr� �finderr r r r� � s c c s� | j jd�rdS t| �}|jd�r2tj||d�V |r:dS xH|jd�D ]:}t|�rFtj j ||�}x t t j |�|�D ] }|V qrW qFW dS )z@ Find eggs in zip files; possibly multiple nested eggs. z.whlNzPKG-INFO)r� r{ )r� �endswithr� r� r� � from_filenamer r� r� r� rm �find_eggs_in_zip� zipimport� zipimporter)r� r� r� r� Zsubitem�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 dd� }t | |dd�S )aL Given a list of filenames, return them in descending order by version number. >>> names = 'bar', 'foo', 'Python-2.7.10.egg', 'Python-2.7.2.egg' >>> _by_version_descending(names) ['Python-2.7.10.egg', 'Python-2.7.2.egg', 'foo', 'bar'] >>> names = 'Setuptools-1.2.3b1.egg', 'Setuptools-1.2.3.egg' >>> _by_version_descending(names) ['Setuptools-1.2.3.egg', 'Setuptools-1.2.3b1.egg'] >>> names = 'Setuptools-1.2.3b1.egg', 'Setuptools-1.2.3.post1.egg' >>> _by_version_descending(names) ['Setuptools-1.2.3.post1.egg', 'Setuptools-1.2.3b1.egg'] c S s2 t jj| �\} }tj| jd�|g�}dd� |D �S )z6 Parse each component of the filename r+ c S s g | ]}t jj|��qS r )r rK r� )r+ r3 r r r � <listcomp>� s z?_by_version_descending.<locals>._by_version.<locals>.<listcomp>)r� r� �splitext� itertools�chainr )r� �extr< r r r � _by_version� s z+_by_version_descending.<locals>._by_versionT)r' r6 )�sorted)rM r� r r r �_by_version_descending� s r� c c s� t |�}tjj|�o tj|tj��r�t|�rPtj|t |tjj |d��d�V �nTt tj |��}�xB|D �]8}|j � }|jd�s�|jd�r�tjj ||�}tjj|�r�ttj |��dkr�qft ||�}nt|�}tj|||td�V qf| o�t|��rttjj ||��}x�|D ] } | V �qW qf| rf|jd�rfttjj ||���} | j� } W dQ R X xN| D ]F} | j� �sh�qVtjj || j� �} t| �}x|D ] }|V �q�W P �qVW qfW dS ) z6Yield distributions accessible on a sys.path directoryzEGG-INFO)r� z .egg-infoz .dist-infor )� precedencez .egg-linkN)�_normalize_cachedr� r� r �access�R_OKr� r� r� r� rm r� r� r8 r� rw r� � from_locationr� r� r � readlines�strip�rstrip)r� r� r� Zpath_item_entriesr� r8 Zfullpathr� r r� Z entry_fileZ entry_lines�liner� r r r r � find_on_path� sB r� � FileFinder)�_namespace_handlers)�_namespace_packagesc C s |t | < dS )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. 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N)r� )r� Znamespace_handlerr r r r� s c C s� t |�}|dkrdS |j| �}|dkr*dS tjj| �}|dkrbtj| � }tj| < g |_t| � nt |d�svt d| ��t t |�}|||| |�}|dk r�|j}|j |� |j| � t|| |� |S )zEEnsure that named package includes a subpath of path_item (if needed)N�__path__zNot a package:)r � find_modulerk r� rB �types� ModuleTyper� �_set_parent_nsr� r� r� r� r; � load_module�_rebuild_mod_path)� packageNamer� r� r� r� Zhandlerr� r� r r r � _handle_ns s* r� c sR dd� t jD ���fdd��� �fdd�}| j|d� dd� | D �|jd d �< d S ) zq Rebuild module.__path__ ensuring that all entries are ordered corresponding to their sys.path order c S s g | ] }t |��qS r )r� )r+ �pr r r r� 5 s z%_rebuild_mod_path.<locals>.<listcomp>c s( y � j | �S tk r" td�S X dS )z/ Workaround for #520 and #513. �infN)�indexrp �float)r� )�sys_pathr r �safe_sys_path_index7 s z._rebuild_mod_path.<locals>.safe_sys_path_indexc s< | j tj�}� jd�d }|d| � }�ttjj|���S )zR Return the ordinal of the path based on its position in sys.path r, r- N)r r� r� �countr� rm )r� � path_partsZ module_partsr< )� package_namer� r r �position_in_sys_path@ s z/_rebuild_mod_path.<locals>.position_in_sys_path)r' c S s g | ] }t |��qS r )r� )r+ r� r r r r� J s N)rk r� r! r� )Z orig_pathr� r� r� r )r� r� r� r r� 0 s r� c C s� t j� z�| tkrdS tjd }}d| kr�dj| jd�dd� �}t|� |tkrZt|� ytj | j }W n t k r� t d|��Y nX tj |g �j| � tj | g � x|D ]}t| |� q�W W dt j� X dS )z9Declare that package 'packageName' is a namespace packageNr, r- zNot a package:r7 )�_imp� acquire_lockr� rk r� rm r r� r� r� r� r� r� r r; r� � release_lock)r� r� r� r� r r r r� M s& c C sJ t j� z2x,tj|f �D ] }t|| �}|rt||� qW W dt j� X dS )zDEnsure that previously-declared namespace packages include path_itemN)r� r� r� rB r� r� r� )r� r� �packager� r r r r� n s c C sF t jj||jd�d �}t|�}x |jD ]}t|�|kr(P q(W |S dS )zBCompute an ns-package subpath for a filesystem or zipfile importerr, r- Nr7 )r� r� rm r r� r� )r� r� r� r� r� Z normalizedr r r r �file_ns_handlerz s r c C s d S )Nr )r� r� r� r� r r r �null_ns_handler� s r c C s t jjt jj| ��S )z1Normalize a file/dir name for comparison purposes)r� r� �normcase�realpath)rZ r r r r� � s c C s2 y|| S t k r, t| � || < }|S X d S )N)r� r� )rZ r� �resultr r r r� � s r� c C s | j � jd�S )z@ Determine if given path appears to be an unpacked egg. z.egg)r8 r� )r� r r r r� � s r� c C s< | j d�}|j� }|r8dj|�}ttj| |tj| � d S )Nr, )r r: rm �setattrrk r� )r� r< r� r� r r r r� � s r� c c sh t | tj�r>xV| j� D ]"}|j� }|r|jd� r|V qW n&x$| D ] }xt|�D ] }|V qRW qDW dS )z9Yield non-empty/non-comment lines of a string or sequence�#N)r r r� � splitlinesr� r9 r� )�strsr2 Zssr r r r� � s z \w+(\.\w+)*$z� (?P<name>[^-]+) ( -(?P<ver>[^-]+) ( -py(?P<pyver>[^-]+) ( -(?P<plat>.+) )? )? )? c @ s� e Zd ZdZf f dfdd�Zdd� Zdd� Zdd d �Zd d � Zddd�Z e j d�Z e ddd��Ze dd� �Ze d dd��Ze d dd��ZdS ) r� z3Object representing an advertised importable objectNc C sJ t |�std|��|| _|| _t|�| _tjddj|� �j | _ || _ d S )NzInvalid module namezx[%s]�,) �MODULErp r� � module_namer �attrsr� r� rm r r� )r r� r r r r� r r r r� � s zEntryPoint.__init__c C sH d| j | jf }| jr*|ddj| j� 7 }| jrD|ddj| j� 7 }|S )Nz%s = %s�:r, z [%s]r )r� r r rm r )r r2 r r r r� � s zEntryPoint.__str__c C s dt | � S )NzEntryPoint.parse(%r))rF )r r r r r� � s zEntryPoint.__repr__Tc O s6 | s|s|r t jdtdd� |r.| j||� | j� S )zH Require packages for this EntryPoint, then resolve it. zJParameters to load are deprecated. Call .resolve and .require separately.rg )r> )rC rD �DeprecationWarningrt r )r rt rd r� r r r r� � s zEntryPoint.loadc C sV t | jdgdd�}ytjt| j|�S tk rP } ztt|���W Y dd}~X nX dS )zD Resolve the entry point from its module and attrs. r r )�fromlist�levelN) r� r � functools�reducer� r r� r� rF )r r� �excr r r r � s zEntryPoint.resolvec C sH | j r| j rtd| ��| jj| j �}tj|||�}tttj|�� d S )Nz&Can't require() without a distribution) r r� r� r r� r r r r )r r r r rV r r r rt s zEntryPoint.requirez]\s*(?P<name>.+?)\s*=\s*(?P<module>[\w.]+)\s*(:\s*(?P<attr>[\w.]+))?\s*(?P<extras>\[.*\])?\s*$c C sf | j j|�}|s d}t||��|j� }| j|d �}|d rJ|d jd�nf }| |d |d |||�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 z9EntryPoint must be in 'name=module:attrs [extras]' formatr �attrr, r� r� )�patternrj rp � groupdict� _parse_extrasr )r �srcr� rr rW �resr r r r r r� s zEntryPoint.parsec C s( |sf S t jd| �}|jr"t� �|jS )N�x)r� r� �specsrp r )r Z extras_specr� r r r r $ s zEntryPoint._parse_extrasc C sZ t |�std|��i }x>t|�D ]2}| j||�}|j|krHtd||j��|||j< q W |S )zParse an entry point groupzInvalid group namezDuplicate entry point)r rp r� r� r� )r ro �linesr� �thisr� r r r r � parse_group- s zEntryPoint.parse_groupc C sx t |t�r|j� }nt|�}i }xR|D ]J\}}|dkrD|s<q&td��|j� }||kr^td|��| j|||�||< q&W |S )z!Parse a map of entry point groupsNz%Entry points must be listed in groupszDuplicate group name)r rR rV r� rp r� r )r �datar� �mapsro r r r r � parse_map: s zEntryPoint.parse_map)T)NN)N)N)N)r r r r r� r� r� r� r rt r? r@ r r' r� r r r! r r r r r� � s c C s> | sdS t jj| �}|d jd�r:t jj|d d� d �S | S )Nr� r- zmd5=r7 r7 )r� )r r� Zurlparser9 Z urlunparse)r Zparsedr r r �_remove_md5_fragmentN s r" c C s@ dd� }t || �}tt|�d�}|jd�\}}}t|j� �p>dS )z� Given an iterable of lines from a Metadata file, return the value of the Version field, if present, or None otherwise. c S s | j � jd�S )Nzversion:)r8 r9 )r� r r r re \ s z$_version_from_file.<locals>.<lambda>r� r N)r �next�iter� partitionr� r� )r Zis_version_lineZ version_linesr� r� rn r r r �_version_from_fileW s r& c @ sZ e Zd ZdZdZddddedefdd�ZedGdd��Z dd � Z e d d � �Z d d � Z dd� Zdd� Zdd� Zdd� Zdd� Zdd� Ze dd� �Ze d d � �Zd d � Ze d d!� �Ze d"d#� �Zf fd$d%�Zd&d'� ZdHd)d*�Zd+d,� Z d-d.� Z d/d0� Z d1d2� Z edId3d4��Z d5d6� Z!d7d8� Z"dJd9d:�Z#d;d<� Z$dKd=d>�Z%d?d@� Z&dAdB� Z'dCdD� Z(e dEdF� �Z)dS )Lr� z5Wrap an actual or potential sys.path entry w/metadatazPKG-INFONc C sF t |pd�| _|d k r t|�| _|| _|| _|| _|| _|p>t| _ d S )NZUnknown) r� r r� �_versionr2 rl r r� r� � _provider)r r r� r rK r2 rl r� r r r r� g s zDistribution.__init__c K s~ d gd \}}}}t jj|�\}} | j� tkr^t| j� } t|�} | r^| jdddd�\}}}}| ||f||||d�|��j� S )Nr� r� ZverZpyverrq )r rK r2 rl )r� r� r� r8 �_distributionImpl�EGG_NAMEro �_reload_version) r r r� r� rT r rK r2 rl r� rj r r r r� s s zDistribution.from_locationc C s | S )Nr )r r r r r+ � s z Distribution._reload_versionc C s( | j | j| jt| j�| jp d| jp$dfS )Nr� )�parsed_versionr� r' r" r r2 rl )r r r r r5 � s zDistribution.hashcmpc C s t | j�S )N)�hashr5 )r r r r r � s zDistribution.__hash__c C s | j |j k S )N)r5 )r r! r r r r � s zDistribution.__lt__c C s | j |j kS )N)r5 )r r! r r r r" � s zDistribution.__le__c C s | j |j kS )N)r5 )r r! r r r r% � s zDistribution.__gt__c C s | j |j kS )N)r5 )r r! r r r r$ � s zDistribution.__ge__c C s t || j�sdS | j|jkS )NF)r r r5 )r r! r r r r# � s zDistribution.__eq__c C s | |k S )Nr )r r! r r r r& � s zDistribution.__ne__c C s0 y| j S tk r* | jj� | _ }|S X d S )N)Z_keyr� r r8 )r r' r r r r' � s zDistribution.keyc C s t | d�st| j�| _| jS )N�_parsed_version)r� rN rK r. )r r r r r, � s zDistribution.parsed_versionc C sX t jj}t| j|�}|s d S | js&d S tjd�j� jdd�}t j |j f t | ��t � d S )Na> '{project_name} ({version})' is being parsed as a legacy, non PEP 440, version. 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It is recommended to migrate to PEP 440 compatible versions. rq r� )r rK � LegacyVersionr r. rC rD r� r5 rC rD r� �varsr )r ZLVZ is_legacyrH r r r �_warn_legacy_version� s z!Distribution._warn_legacy_versionc C sL y| j S tk rF t| j| j��}|d krBd}t|| j | ��|S X d S )Nz(Missing 'Version:' header and/or %s file)r' r� r& � _get_metadata�PKG_INFOrp )r rK rH r r r rK � s zDistribution.versionc C s� y| j S tk r� d g i }| _ x�dD ]x}xrt| j|��D ]`\}}|r�d|kr||jdd�\}}t|�rpg }n t|�s|g }t|�p�d }|j|g �j t |�� q>W q*W |S X d S )N� requires.txt� depends.txtr r- )r4 r5 ) Z_Distribution__dep_mapr� r� r2 r r� r� r� r r r� )r �dmr� r( r r) r r r �_dep_map� s zDistribution._dep_mapc C sj | j }g }|j|jdf �� xH|D ]@}y|j|t|� � W q" tk r` td| |f ��Y q"X q"W |S )z@List of Requirements needed for this distro if `extras` are usedNz %s has no such extra feature %r)r7 r rB r� r� r� )r r r6 Zdepsr� r r r r � s zDistribution.requiresc c s( | j |�r$x| j|�D ] }|V qW d S )N)r� r� )r r� r� r r r r2 s zDistribution._get_metadataFc C sZ |dkrt j}| j||d� |t jkrVt| j� x$| jd�D ]}|t jkr<t|� q<W dS )z>Ensure distribution is importable on `path` (default=sys.path)N)r5 znamespace_packages.txt)rk r� r r� r r2 r� r� )r r� r5 Zpkgr r r �activate s zDistribution.activatec C s8 dt | j�t | j�| jptf }| jr4|d| j 7 }|S )z@Return what this distribution's standard .egg filename should bez %s-%s-py%sr+ )r� r rK r2 r> rl )r rZ r r r r~ s zDistribution.egg_namec C s | j rd| | j f S t| �S d S )Nz%s (%s))r rF )r r r r r� s zDistribution.__repr__c C s@ yt | dd �}W n tk r( d }Y nX |p0d}d| j|f S )NrK z[unknown version]z%s %s)r� rp r )r rK r r r r� % s zDistribution.__str__c C s |j d�rt|��t| j|�S )zADelegate all unrecognized public attributes to .metadata providerr� )r9 r� r� r( )r r r r r � __getattr__- s zDistribution.__getattr__c K s | j t|�tjj|�|f|�S )N)r� r� r� r� r� )r rZ r� rT r r r r� 3 s zDistribution.from_filenamec C s< t | jtjj�r"d| j| jf }nd| j| jf }tj|�S )z?Return a ``Requirement`` that matches this distribution exactlyz%s==%sz%s===%s)r r, r rK r_ r r� r� )r �specr r r r" : s zDistribution.as_requirementc C s. | j ||�}|dkr&td||ff ��|j� S )z=Return the `name` entry point of `group` or raise ImportErrorNzEntry point %r not found)rz r� r� )r ro r� r r r r rx C s z Distribution.load_entry_pointc C sP y | j }W n, tk r6 tj| jd�| � }| _ Y nX |dk rL|j|i �S |S )z=Return the entry point map for `group`, or the full entry mapzentry_points.txtN)Z_ep_mapr� r� r! r2 rB )r ro Zep_mapr r r ry J s zDistribution.get_entry_mapc C s | j |�j|�S )z<Return the EntryPoint object for `group`+`name`, or ``None``)ry rB )r ro r� r r r rz V s zDistribution.get_entry_infoc C s2 |p| j }|sdS t|�}tjj|�}dd� |D �}x�t|�D ]v\}}||kr\|rVP q�dS q>||kr>| jtkr>| r�|||d� kr�dS |tjkr�| j � |j ||� |j ||� P q>W |tjkr�| j � |r�|j d|� n |j |� dS xBy|j ||d �} W n t k �r P Y q�X || = || = | }q�W dS )a� Ensure self.location is on path If replace=False (default): - If location is already in path anywhere, do nothing. - Else: - If it's an egg and its parent directory is on path, insert just ahead of the parent. - Else: add to the end of path. 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