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Edit: __init__.cpython-36.pyc
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(like ``os.path.isdir()``)Nr )r� r r r rU s z IResourceProvider.resource_isdirc C s dS )z?List of resource names in the directory (like ``os.listdir()``)Nr )r� r r r rS s z"IResourceProvider.resource_listdirN) r r r r r� r� r� r� rU rS r r r r r{ s c @ s� e Zd ZdZd'dd�Zedd� �Zedd� �Zd d � Zd d � Z d d� Z d(dd�Z dd� Z dd� Z d)dd�Zd*dd�Zd+dd �Zd d � Zd,d d �Zd!d"� Zd#d$� Zd%d&� ZdS )-r^ zDA collection of active distributions on sys.path (or a similar list)Nc C sB g | _ i | _i | _g | _|dkr&tj}x|D ]}| j|� q,W dS )z?Create working set from list of path entries (default=sys.path)N)�entries� entry_keys�by_key� callbacksr? r� � add_entry)r� r� �entryr r r �__init__ s zWorkingSet.__init__c C sZ | � }yddl m} W n tk r* |S X y|j|� W n tk rT | j|�S X |S )z1 Prepare the master working set. r )� __requires__)�__main__r� � ImportErrorrH rd �_build_from_requirements)�cls�wsr� r r r � _build_master, s zWorkingSet._build_masterc C sn | g �}t |�}|j|t� �}x|D ]}|j|� q$W x"tjD ]}||jkr>|j|� q>W |jtjdd�< |S )zQ Build a working set from a requirement spec. Rewrites sys.path. N)rh �resolver] �addr? r� r� r� )r� Zreq_specr� �reqs�distsr� r� r r r r� @ s z#WorkingSet._build_from_requirementsc C s@ | j j|g � | jj|� x t|d�D ]}| j||d� q&W dS )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� rY r� )r� r� r� r r r r� V s zWorkingSet.add_entryc C s | j j|j�|kS )z9True if `dist` is the active distribution for its project)r� r� r2 )r� r� r r r � __contains__e s zWorkingSet.__contains__c C s, | j j|j�}|dk r(||kr(t||��|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� r2 rd )r� r� r� r r r r� i s zWorkingSet.findc c sP xJ| D ]B}|j |�}|dkr6x*|j� D ] }|V q&W q||kr|| V qW dS )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)rM �values)r� rC r� r� r� �epr r r rO y s z WorkingSet.iter_entry_pointsc C s> t jd�j}|d }|j� ||d< | j|�d j||� dS )z?Locate distribution for `requires` and run `script_name` scriptr r r N)r? r� r� r1 rH rI )r� �requiresr� r� r� r r r rI � s zWorkingSet.run_scriptc c sT i }xJ| j D ]@}|| jkr q x.| j| D ] }||kr(d||< | j| V q(W q W dS )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�itemr2 r r r �__iter__� s zWorkingSet.__iter__TFc C s� |r|j | j||d� |dkr$|j}| jj|g �}| jj|jg �}| rX|j| jkrXdS || j|j< |j|krz|j|j� |j|kr�|j|j� | j|� dS )a Add `dist` to working set, associated with `entry` If `entry` is unspecified, it defaults to the ``.location`` of `dist`. On exit from this routine, `entry` is added to the end of the working set's ``.entries`` (if it wasn't already present). `dist` is only added to the working set if it's for a project that doesn't already have a distribution in the set, unless `replace=True`. If it's added, any callbacks registered with the ``subscribe()`` method will be called. )r� N) � insert_onr� �locationr� r� r2 r� r� � _added_new)r� r� r� �insertr� �keysZkeys2r r r r� � s zWorkingSet.addc C s� t |�ddd� }i }i }g }t� } tjt�} �xP|�r�|jd�} | |krLq2| j| |�sZq2|j| j�} | dk�r | j j| j�} | dks�| | ko�|�r | } |dkr�| dkr�t | j �}nt g �}t g �} |j | | ||d� } || j< | dk�r | j| d�}t| |��|j| � | | k�r,| | }t| | �j|��| j| j�ddd� }|j|� x(|D ] }| | j| j� | j| |< �qRW d|| < q2W |S )a� List all distributions needed to (recursively) meet `requirements` `requirements` must be a sequence of ``Requirement`` objects. `env`, if supplied, should be an ``Environment`` instance. If not supplied, it defaults to all distributions available within any entry or distribution in the working set. `installer`, if supplied, will be invoked with each requirement that cannot be met by an already-installed distribution; it should return a ``Distribution`` or ``None``. Unless `replace_conflicting=True`, raises a VersionConflict exception if any requirements are found on the path that have the correct name but the wrong version. Otherwise, if an `installer` is supplied it will be invoked to obtain the correct version of the requirement and activate it. `extras` is a list of the extras to be used with these requirements. This is important because extra requirements may look like `my_req; extra = "my_extra"`, which would otherwise be interpreted as a purely optional requirement. Instead, we want to be able to assert that these requirements are truly required. Nr r )�replace_conflictingT���r� )�list� _ReqExtras� collections� defaultdict�set�pop� markers_passr� r2 r� r] r� r^ � best_matchre r� rd r� r� �extras�extendr� � project_name)r� � requirements�env� installerr� r� Z processedZbestZ to_activateZ req_extrasr� r� r� r� r� Z dependent_reqZnew_requirementsZnew_requirementr r r r� � sN 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� rc r" r$ r% )r� Z plugin_envZfull_envr ZfallbackZplugin_projectsZ error_infoZ distributionsr Z shadow_setr� r� r� Z resolveesr r r r � find_plugins 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� rh r� )r� r� Zneededr� r r r rH o 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 r, � 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)NNFN)NNT)T)r r r r r� � classmethodr� r� r� r� r� rO rI r� r� r� r rH r r� r, r- r r r r r^ s& \ S c @ s e Zd ZdZddd�ZdS )r� z> Map each requirement to the extras that demanded it. Nc s2 � fdd�| j � f �|pd D �}� j p0t|�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)r� r �any)r� r� r� Z extra_evalsr )r� r r� � s z_ReqExtras.markers_pass)N)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 d dd�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)�_distmapr@ �python�scan)r� � search_pathr@ r r r r r� � s zEnvironment.__init__c C s2 | j dkp |jdkp |j| j k}|o0t|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_versionrl r@ )r� r� Z py_compatr r r �can_add� s zEnvironment.can_addc C s | j |j j|� dS )z"Remove `dist` from the environmentN)r r2 �remove)r� r� r r r r � 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)r? r� rY r� )r� r r� r� r r r r � 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. )�lowerr r� )r� r� Zdistribution_keyr r r � __getitem__� 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)r2 �reverseN) r � has_versionr r� r2 r� r �operator� attrgetter)r� r� r� r r r r� � s zEnvironment.addFc C sf y|j |�}W n tk r, |s$� d}Y nX |dk r:|S x | |j D ]}||krF|S qFW | 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� rd r2 �obtain)r� r� rW r r� r� r r r r� 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 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� r2 r r r r� + 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� �otherZprojectr� r r r �__iadd__1 s zEnvironment.__iadd__c C s. | j g ddd�}x| |fD ] }||7 }qW |S )z4Add an environment or distribution to an environmentN)r@ r )r� )r� r �newr r r r �__add__= s zEnvironment.__add__)N)NF)N)r r r r rG �PY_MAJORr� r r r r r� r� r r� r r! r r r r r] � s c @ s e Zd ZdZdS )rg 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 rg I 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?)rJ r� )r� �package_or_requirementr� r r r rT ` s z ResourceManager.resource_existsc C s t |�j|�S )z,Is the named resource an existing directory?)rJ rU )r� r$ r� r r r rU d s z ResourceManager.resource_isdirc C s t |�j| |�S )z4Return a true filesystem path for specified resource)rJ r� )r� r$ r� r r r rR j s z!ResourceManager.resource_filenamec C s t |�j| |�S )z9Return a readable file-like object for specified resource)rJ r� )r� r$ r� r r r rQ p s z ResourceManager.resource_streamc C s t |�j| |�S )z%Return specified resource as a string)rJ r� )r� r$ r� r r r rP v s z ResourceManager.resource_stringc C s t |�j|�S )z1List the contents of the named resource directory)rJ rS )r� r$ r� r r r rS | 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) r? �exc_info�extraction_pathr\ �textwrap�dedent�lstriprg r� r� r� � cache_pathZoriginal_error)r� �old_excr* �tmpl�errr r r �extraction_error� s z ResourceManager.extraction_errorc C sf | j p t� }tjj||d f|�� }y t|� W n tk rL | 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 ) r& r\ r� r� rA �_bypass_ensure_directory� Exceptionr. � _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. 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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# rD r& )r� r� r r r rZ � 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[ � s z!ResourceManager.cleanup_resources)F)r r r r r& r� rT rU rR rQ rP rS r. r3 � staticmethodr1 rB rZ r[ r r r r r_ Y 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". 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NF)rr � SyntaxErrorrA �lineno)�text�er r r rq > s c C sH yt jj| �}|j� S t jjk rB } zt|��W Y dd}~X nX dS )z� Evaluate a PEP 508 environment marker. Return a boolean indicating the marker result in this environment. Raise SyntaxError if marker is invalid. This implementation uses the 'pyparsing' module. N)r ZmarkersZMarkerr Z InvalidMarkerrH )rJ r r rK r r r rr L 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$� Zd%d&� ZdS )'r� zETry to implement resources and metadata for arbitrary PEP 302 loadersNc C s( t |dd �| _tjjt |dd��| _d S )Nr� �__file__r� )r� r� r� r� �dirname� module_path)r� r� r r r r� b s zNullProvider.__init__c C s | j | j|�S )N)�_fnrN )r� r� r� r r r r� f s z"NullProvider.get_resource_filenamec C s t j| j||��S )N)�io�BytesIOr� )r� r� r� r r r r� i s z NullProvider.get_resource_streamc C s | j | j| j|��S )N)�_getrO rN )r� r� r� r r r r� l s z NullProvider.get_resource_stringc C s | j | j| j|��S )N)�_hasrO rN )r� r� r r r r� o s zNullProvider.has_resourcec C s | j o| j| j| j |��S )N)�egg_inforS rO )r� r� r r r r� r s zNullProvider.has_metadatac C s2 | j s dS | j| j| j |��}tjr.|jd�S |S )Nr� zutf-8)rT rR rO r ZPY3�decode)r� r� �valuer r r r� u s zNullProvider.get_metadatac C s t | j|��S )N)rm r� )r� r� r r r r� { s z NullProvider.get_metadata_linesc C s | j | j| j|��S )N)�_isdirrO rN )r� r� r r r rU ~ s zNullProvider.resource_isdirc C s | j o| j| j| j |��S )N)rT rW rO )r� r� r r r r� � s zNullProvider.metadata_isdirc C s | j | j| j|��S )N)�_listdirrO rN )r� r� r r r rS � s z NullProvider.resource_listdirc C s | j r| j| j| j |��S g S )N)rT rX rO )r� r� r r r r� � s z NullProvider.metadata_listdirc C s� d| }| j |�s$tdjf t� ���| j|�jdd�}|jdd�}| j| j|�}||d< tj j |�r�t |�j � }t ||d�}t|||� n>dd lm} t|�d|jd�|f||< t ||d�} t| ||� d S ) Nzscripts/z<Script {script!r} not found in metadata at {self.egg_info!r}z � � rL �execr )�cache)r� rc r� r� r� r� rO rT r� r� r� r �read�compiler[ � linecacher\ �lenr ) r� r� r� ZscriptZ script_textZscript_filename�source�coder\ Z script_coder r r rI � 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 rS � s zNullProvider._hasc C s t d��d S )Nz9Can't perform this operation for unregistered loader type)rc )r� r� r r r rW � s zNullProvider._isdirc C s t d��d S )Nz9Can't perform this operation for unregistered loader type)rc )r� r� r r r rX � s zNullProvider._listdirc C s |r t jj|f|jd��� S |S )N�/)r� r� rA r )r� �baser� r r r rO � 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� rf rc )r� r� r r r rR � s zNullProvider._get)r r r r �egg_namerT r� r� r� r� r� r� r� r� r� rU r� rS r� rI rS rW rX rO rR 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) rN � _is_egg_pathr� r� �basenamerg rA rT �egg_rootr )r� r� �oldre r r r rh � s zEggProvider._setup_prefixN)r r r r r� rh 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 rS � s zDefaultProvider._hasc C s t jj|�S )N)r� r� r )r� r� r r r rW � s zDefaultProvider._isdirc C s t j|�S )N)r� �listdir)r� r� r r r rX � s zDefaultProvider._listdirc C s t | j| j|�d�S )N�rb)r rO rN )r� r� r� r r r r� � s z#DefaultProvider.get_resource_streamc C s t |d�� }|j� S Q R X d S )Nrn )r r] )r� r� �streamr r r rR � s zDefaultProvider._getc C s0 d}x&|D ] }t t|td ��}t|| � q W d S )N�SourceFileLoader�SourcelessFileLoader)rp rq )r� �importlib_machinery�typer� )r� Z loader_namesr� Z loader_clsr r r � _register� s zDefaultProvider._registerN) r r r r rS rW rX r� rR r rt r r r r r� � s c @ s8 e Zd ZdZdZdd� ZZdd� Zdd� Zd d � Z dS ) r z.Provider that returns nothing for all requestsNc C s dS )NFr )r� r� r r r r8 � s zEmptyProvider.<lambda>c C s dS )Nr� r )r� r� r r r rR � s zEmptyProvider._getc C s g S )Nr )r� r� r r r rX s zEmptyProvider._listdirc C s d S )Nr )r� r r r r� s zEmptyProvider.__init__) r r r r rN rW rS rR rX r� r r r r r � s c @ s e Zd ZdZedd� �ZeZdS )� ZipManifestsz zip manifest builder c s4 t j|�� � � 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 )rd N)r� r� �sepZgetinfo)r r� )�zfiler r r s z%ZipManifests.build.<locals>.<genexpr>N)�zipfileZZipFileZnamelistr$ )r� r� r( r )rw r �build s zZipManifests.buildN)r r r r r ry �loadr r r r ru s ru 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� �normpathr6 �st_mtime�mtimery r| �manifest)r� r� r r� r r r rz + s zMemoizedZipManifests.loadN)r r r r r� � namedtupler| rz r r r r r{ % 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� rv �zip_pre)r� r� r r r r� ? s zZipProvider.__init__c C sP |j tj�}|| jjkr dS |j| j�r:|t| j�d � S td|| jf ��d S )Nr� z%s is not a subpath of %s) �rstripr� rv r� r� r� r� r` �AssertionError)r� �fspathr r r � _zipinfo_nameC 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� r� rk r� rv r` r r� )r� �zip_pathr� r r r �_partsO s zZipProvider._partsc C s | j j| jj�S )N)�_zip_manifestsrz r� r� )r� r r r �zipinfoY 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 .ziprd )rg rc �_resource_to_zip�_get_eager_resourcesrA 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 r� )r r r� )Z file_size� date_time�timeZmktime)Zzip_stat�sizer� � timestampr r r �_get_date_and_sizej 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 .$extract)�dirr4 )�_indexr� r� r� rA rM r� r� � WRITE_SUPPORT�IOErrorr3 rg r� � _is_current�_mkstemp�writer� rf �closer rB r �error�isfiler� r r. ) r� r� r� r� Zlastr� r� Z real_pathZoutfZtmpnamr r r r� s sD z ZipProvider._extract_resourcec C sx | j | j| �\}}tjj|�s$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 Frn N) r� r� r� r� r� r6 �st_sizer~ r� rf r r] ) r� Z file_pathr� r� r� r6 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 r� r� ) Z _dirindex�AttributeErrorr� r r� rv rA r� r� )r� Zindr� �parts�parentr r r r� � s zZipProvider._indexc C s | j |�}|| jkp || j� kS )N)r� r� r� )r� r� r� r r r rS � s zZipProvider._hasc C s | j |�| j� kS )N)r� r� )r� r� r r r rW � s zZipProvider._isdirc C s t | j� j| j|�f ��S )N)r� r� r� r� )r� r� r r r rX � s zZipProvider._listdirc C s | j | j| j|��S )N)r� rO rk )r� r� r r r r� � s zZipProvider._eager_to_zipc C s | j | j| j|��S )N)r� rO rN )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� rD r� r� r� r� r� rS rW rX r� r� r r r r r� 9 s$ 7 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-8r� )�encoding�errors)r� rP r r� r] �_warn_on_replacement)r� r� r� �metadatar r r r� � 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)rU r� r� r: r; )r� r� Zreplacement_charr, r> r r r r� s z!FileMetadata._warn_on_replacementc C s t | j|��S )N)rm 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 r| � 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)rN rT )r� r� rT r r r r� # s zPathMetadata.__init__N)r r r r r� r r r r r} 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� rv r� r� �prefixr� rA rN rh )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 | < 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 rY D s c c s� | j jd�rdS t| �}|jd�r2tj||d�V |r:dS x�|jd�D ]�}t|�r�tj j ||�}t t j |�|�}xT|D ] }|V qvW qF|j� jd�rFtj j ||�}tt j |��}||_tj|||�V qFW dS )z@ Find eggs in zip files; possibly multiple nested eggs. z.whlNzPKG-INFO)r� rd z .dist-info)r� �endswithr~ r� r` � from_filenamerS ri r� r� rA �find_eggs_in_zip� zipimport� zipimporterr rT � from_location) r� r� r� r� Zsubitem�subpathr� r� Zsubmetar r r r� K s$ r� c C s f S )Nr )r� r� r� r r r � find_nothingi 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 rE c S s g | ]}t jj|��qS r )r r r� )r �partr 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)r2 r )�sorted)r2 r� r r r �_by_version_descendingp s r� c # s� t ���t��r4tj�t�tjj�d��d�V dS t��}� �fdd�|D �}t |�}x>|D ]6}tjj�|�}t �|� �}x||�D ] } | V q�W q^W dS )z6Yield distributions accessible on a sys.path directoryzEGG-INFO)r� Nc 3 s | ]}t �|� �r|V qd S )N)� dist_factory)r r� )r� r� r r r � s z find_on_path.<locals>.<genexpr>) �_normalize_cached�_is_unpacked_eggr` r� r} r� r� rA � safe_listdirr� r� ) r� r� r� r� ZfilteredZpath_item_entriesr� �fullpath�factoryr� r )r� r� r � find_on_path� s r� c C sL |j � }tt|jd��}|r tS | r2t|�r2tS | rF|jd�rFtS t� S )z9 Return a dist_factory for a path_item and entry � .egg-info� .dist-infoz .egg-link)r� r� ) r r r r� �distributions_from_metadatari rY �resolve_egg_link�NoDists)r� r� r� r Zis_metar r r r� � s r� c @ s* e Zd ZdZdd� Zejr eZdd� ZdS )r� zS >>> bool(NoDists()) False >>> list(NoDists()('anything')) [] c C s dS )NFr )r� r r r �__bool__� s zNoDists.__bool__c C s t f �S )N)�iter)r� r� r r r �__call__� s zNoDists.__call__N) r r r r r� r �PY2Z __nonzero__r� r r r r r� � s r� c C st y t j| �S ttfk r" Y nN tk rn } z2|jtjtjtjfkpVt |dd�dk}|s^� W Y dd}~X nX f S )zI Attempt to list contents of path, but suppress some exceptions. ZwinerrorNi ) r� rm �PermissionError�NotADirectoryError�OSError�errno�ENOTDIRZEACCES�ENOENTr� )r� rK Z ignorabler r r r� � s r� c c sf t jj| �}t jj| �r:tt j| ��dkr.d S t|| �}nt| �}t jj| �}t j |||t d�V d S )Nr )� precedence) r� r� rM r r` rm r} r| rj r` r� ry )r� �rootr� r� r r r r� � s r� c c s8 t | ��&}x |D ]}|j� }|r|V qW W dQ R X dS )z1 Yield non-empty lines from file at path N)r �strip)r� r� �liner r r �non_empty_lines� s r� c s. t � �}� fdd�|D �}tt|�}t|f �S )za Given a path to an .egg-link, resolve distributions present in the referenced path. c 3 s$ | ] }t jjt jj� �|�V qd S )N)r� r� rA rM )r �ref)r� r r r s z#resolve_egg_link.<locals>.<genexpr>)r� r rY �next)r� Zreferenced_pathsZresolved_pathsZ dist_groupsr )r� r r� � s 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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Z version_linesr� r� rV r r r �_version_from_filew s r# c s� e Zd ZdZdZddddedefdd�ZedNdd��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#� �Zed$d%� �Zd&d'� Zf fd(d)�Z d*d+� Z dOd-d.�Z d/d0� Z d1d2� Z d3d4� Z!d5d6� Z"� fd7d8�Z#e$e%d9��s&[#edPd:d;��Z&d<d=� Z'd>d?� Z(dQd@dA�Z)dBdC� Z*dRdDdE�Z+dFdG� Z,dHdI� Z-dJdK� Z.e dLdM� �Z/� Z0S )Sr` z5Wrap an actual or potential sys.path entry w/metadatazPKG-INFONc C sF t |pd�| _|d k r t|�| _|| _|| _|| _|| _|p>t| _ d S )NZUnknown) ri r� rj �_versionr r@ r� r� r� � _provider)r� r� r� r� r r r@ r� r r r r� � s zDistribution.__init__c K s~ d gd \}}}}t jj|�\}} | j� tkr^t| j� } t|�} | r^| jdddd�\}}}}| ||f||||d�|��j� S )Nr� r� ZverZpyverrE )r� r r r@ )r� r� r� r �_distributionImpl�EGG_NAMErC �_reload_version) r� r� rj r� r& r� r r r@ r� r> r r r r� � 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� r2 r r� r r@ )r� r r r r � s zDistribution.hashcmpc C s t | j�S )N)�hashr )r� r r r �__hash__� s zDistribution.__hash__c C s | j |j k S )N)r )r� r r r r �__lt__� s zDistribution.__lt__c C s | j |j kS )N)r )r� r r r r �__le__� s zDistribution.__le__c C s | j |j kS )N)r )r� r r r r �__gt__� s zDistribution.__gt__c C s | j |j kS )N)r )r� r r r r �__ge__� s zDistribution.__ge__c C s t || j�sdS | j|jkS )NF)r� r� r )r� r r r r �__eq__� s zDistribution.__eq__c C s | |k S )Nr )r� r r r r �__ne__� s zDistribution.__ne__c C s0 y| j S tk r* | jj� | _ }|S X d S )N)Z_keyr� r� r )r� r2 r r r r2 � s zDistribution.keyc C s t | d�st| j�| _| jS )N�_parsed_version)r� r r r2 )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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