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Package resource API
--------------------
A resource is a logical file contained within a package, or a logical
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to have their path parts separated with ``/``, *not* whatever the local
path separator is. Do not use os.path operations to manipulate resource
names being passed into the API.
The package resource API is designed to work with normal filesystem packages,
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.zip files and with custom PEP 302 loaders that support the ``get_data()``
method.
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rs qw Xn | S( sZ Return this platform's maximum compatible version.
distutils.util.get_platform() normally reports the minimum version
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resource_name( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt get_resource_filename] Rd c C@ s d S( si Return a readable file-like object for `resource_name`
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`manager` must be an ``IResourceManager``N( ( R R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt get_resource_stringg Rd c C@ s d S( s, Does the package contain the named resource?N( ( R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt has_resourcel Rd c C@ s d S( s> Is the named resource a directory? (like ``os.path.isdir()``)N( ( R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR o Rd c C@ s d S( s? List of resource names in the directory (like ``os.listdir()``)N( ( R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR} r Rd ( R R R R R R R R R} ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� Z s c B@ s� e Z d Z d d � Z e d � � Z e d � � Z d � Z d � Z d � Z
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� Z e d � Z d � Z d � Z d � Z RS( sD A collection of active distributions on sys.path (or a similar list)c C@ s^ g | _ i | _ i | _ g | _ | d k r< t j } n x | D] } | j | � qC Wd S( s? Create working set from list of path entries (default=sys.path)N( t entriest
entry_keyst by_keyt callbacksRa Ri R� t add_entry( R R t entry( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt __init__y s
c C@ se | � } y d d l m } Wn t k
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Prepare the master working set.
i ( t __requires__( t __main__R R� Rr R� t _build_from_requirements( t clst wsR ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt
_build_master� s
c C@ s� | g � } t | � } | j | t � � } x | D] } | j | � q4 Wx0 t j D]% } | | j k rU | j | � qU qU W| j t j (| S( sQ
Build a working set from a requirement spec. Rewrites sys.path.
( R� t resolveR� t addRi R� R R ( R t req_specR t reqst distsR� R
( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s
c C@ sT | j j | g � | j j | � x* t | t � D] } | j | | t � q3 Wd S( s� 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``.)
N( R t
setdefaultR R6 R� R� R R� ( R R
R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s
c C@ s | j j | j � | k S( s9 True if `dist` is the active distribution for its project( R
R= R ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt __contains__� s c C@ sC | j j | j � } | d k r? | | k r? t | | � � n | S( s� 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= R Ra R� ( R R� R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� � s
c c@ sg x` | D]X } | j | � } | d k rG x4 | j � D] } | Vq5 Wq | | k r | | Vq q Wd S( s 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( Rw Ra t values( R Rm R� R� R t ep( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRy � s
c C@ sQ t j d � j } | d } | j � | | d <| j | � d j | | � d S( s? Locate distribution for `requires` and run `script_name` scripti R i N( Ri R� R� R\ Rr Rs ( R t requiresR� R� R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRs � s
c c@ sp i } xc | j D]X } | | j k r+ q n x: | j | D]+ } | | k r9 d | | <| j | Vq9 q9 Wq Wd S( s� 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.
i N( R R R
( R t seent itemR ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRB � s
c C@ s� | r" | j | j | d | �n | d k r: | 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( s 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.
R0 N(
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t insertR0 t keyst keys2( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s c C@ s" t | � d d d � } i } i } g } t � } t j t � } x�| r | j d � }
|
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<qF W| S( se 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.
Ni����i ( t listt
_ReqExtrast collectionst defaultdictt setR5 t markers_passR= R Ra R
R� R R� t
best_matchR� R6 R� R� R t extrast extendR t project_nameR� ( R t requirementst envt installert replace_conflictingt processedt bestt to_activatet
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dependent_reqt new_requirementst new_requirement( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR sJ
c C@ sA t | � } | j � i } i } | d k rJ t | j � } | | 7} n
| | } | j g � } t t | j | � � x� | D]� }
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� � Pq� Wq� Wt | � } | j � | | f S( ss 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' t sortRa R� R R� R R t as_requirementR R� RJ RL RM ( R t
plugin_envt full_envR3 t fallbackt plugin_projectst
error_infot
distributionsR2 t
shadow_setR0 R� R� t resolveesRG ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt find_pluginsk s4 $
c G@ s7 | j t | � � } x | D] } | j | � q W| S( s� 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 R1 t neededR� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRr � s
c C@ sL | | j k r d S| j j | � | s- d Sx | D] } | | � q4 Wd S( s� Invoke `callback` for all distributions
If `existing=True` (default),
call on all existing ones, as well.
N( R R6 ( R t callbackt existingR� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt subscribe� s
c C@ s" x | j D] } | | � q
Wd S( N( R ( R R� RH ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR# � s c C@ s* | j | j j � | j j � | j f S( N( R R RY R
R ( R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRV � s c C@ sH | \ } } } } | | _ | j � | _ | j � | _ | | _ d S( N( R RY R R
R ( R t e_k_b_cR R% R
R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRX � s
N( R R R Ra R t classmethodR R R R R� Ry Rs RB R� R� R R RF Rr RJ R# RV RX ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� v s(
Q S R( c B@ s e Z d Z d � Z RS( s>
Map each requirement to the extras that demanded it.
c @ s: � f d � | j � d � d D� } � j p9 t | � S( s�
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 j i | d 6� Vq d S( t extraN( t markert evaluate( t .0RM ( R� ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pys <genexpr>� s ( N( N( R= Ra RN t any( R R� t extra_evals( ( R� sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR, � s ( R R R R, ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR( � s c B@ s� e Z d Z d e � e d � Z d � Z d � Z d d � Z d � Z
d � Z d d � Z d d � Z
d � Z d
� Z d � Z RS(
s5 Searchable snapshot of distributions on a search pathc C@ s, i | _ | | _ | | _ | j | � d S( s! 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( t _distmapRj t pythont scan( R t search_pathRj RT ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR s c C@ sC | j d k s0 | j d k s0 | j | j k oB t | j | j � S( s� 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( RT Ra t
py_versionR� Rj ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt can_add s c C@ s | j | j j | � d S( s" Remove `dist` from the environmentN( RS R t remove( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRY ( s c C@ sQ | d k r t j } n x2 | D]* } x! t | � D] } | j | � q2 Wq Wd S( sd 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( Ra Ri R� R� R ( R RV R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRU , s
c C@ s | j � } | j j | g � S( s 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.
( R3 RS R= ( R R0 t distribution_key( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR! ; s c C@ su | j | � rq | j � rq | j j | j g � } | | k rq | j | � | j d t j d � d t � qq n d S( sL Add `dist` if we ``can_add()`` it and it has not already been added
R t hashcmpt reverseN(
RX t has_versionRS R R R6 R< t operatort
attrgetterR� ( R R� R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR F s
c C@ sW | j | � } | d k r | Sx% | | j D] } | | k r- | Sq- W| j | | � S( s� 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� Ra R t obtain( R R� R� R3 R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR- O s
c C@ s | d k r | | � Sd S( s� 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.N( Ra ( R t requirementR3 ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR` e s c c@ s0 x) | j j � D] } | | r | Vq q Wd S( s= Yield the unique project names of the available distributionsN( RS R% ( R R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRB q s
c C@ s{ t | t � r | j | � nX t | t � rd xF | D]( } x | | D] } | j | � qF Wq5 Wn t d | f � � | S( s2 In-place addition of a distribution or environments Can't add %r to environment( R R� R R� R� ( R R t projectR� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt __iadd__w s
c C@ s@ | j g d d d d �} x | | f D] } | | 7} q( W| S( s4 Add an environment or distribution to an environmentRj RT N( R� Ra ( R R t newR2 ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt __add__� s N( R R R Ra Rq t PY_MAJORR RX RY RU R! R R- R` RB Rc Re ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� s c B@ s e Z d Z RS( sT An error occurred extracting a resource
The following attributes are available from instances of this exception:
manager
The resource manager that raised this exception
cache_path
The base directory for resource extraction
original_error
The exception instance that caused extraction to fail
( R R R ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� � s
c B@ s� e Z d Z d Z d � Z d � Z d � Z d � Z d � Z d � Z
d � Z d � Z d d � Z
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� � Z d � Z d � Z e d
� Z RS( s' Manage resource extraction and packagesc C@ s
i | _ d S( N( t cached_files( R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s c C@ s t | � j | � S( s Does the named resource exist?( Rt R ( R t package_or_requirementR ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR~ � s c C@ s t | � j | � S( s, Is the named resource an existing directory?( Rt R ( R Rh R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s c C@ s t | � j | | � S( s4 Return a true filesystem path for specified resource( Rt R ( R Rh R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR| � s c C@ s t | � j | | � S( s9 Return a readable file-like object for specified resource( Rt R ( R Rh R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR{ � s c C@ s t | � j | | � S( s% Return specified resource as a string( Rt R ( R Rh R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRz � s c C@ s t | � j | � S( s1 List the contents of the named resource directory( Rt R} ( R Rh R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR} � s c C@ st t j � d } | j p t � } t j d � j � } t | j t � � � } | | _
| | _ | | _ | � d S( s5 Give an error message for problems extracting file(s)i s
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(
Ri t exc_infot extraction_pathR� t textwrapt dedentt lstripR� R� R� R t
cache_patht original_error( R t old_excRn t tmplt err( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt extraction_error� s c C@ sn | j p t � } t j j | | d | � } y t | � Wn | j � n X| j | � d | j | <| S( s� 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.
s -tmpi ( Rj R� R� R� Rk t _bypass_ensure_directoryRs t _warn_unsafe_extraction_pathRg ( R t archive_namet namest extract_patht target_path( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt get_cache_path� s
c 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( sN
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.
t ntt windirNs� %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� R4 t environt statt st_modet S_IWOTHt S_IWGRPR> R? t UserWarning( R� t modet msg( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRu � s
&c C@ s@ t j d k r< t j | � j d Bd @} t j | | � n d S( s4 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.
t posixim i� N( R� R� R~ R t chmod( R t tempnamet filenameR� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt postprocess s c C@ s% | j r t d � � n | | _ d S( s� 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()``.)
s5 Can't change extraction path, files already extractedN( Rg Rn Rj ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� ) s c C@ s d S( sB
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.
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Return the ``PYTHON_EGG_CACHE`` environment variable
or a platform-relevant user cache dir for an app
named "Python-Eggs".
t PYTHON_EGG_CACHEt appnames Python-Eggs( R� R} R= R
t user_cache_dir( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� Q s c C@ s t j d d | � S( s� Convert an arbitrary string to a standard distribution name
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s [^A-Za-z0-9.]+R% ( R: t sub( R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� ] s c C@ sZ y t t j j | � � SWn9 t j j k
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Convert an arbitrary string to a standard version string
R� R) s [^A-Za-z0-9.]+R% N( RA R RE t VersionRF R0 R: R� ( RE ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� e s
c C@ s t j d d | � j � S( s� Convert an arbitrary string to a standard 'extra' name
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and the result is always lowercased.
s [^A-Za-z0-9.-]+R� ( R: R� R3 ( RM ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� q s c C@ s | j d d � S( s| Convert a project or version name to its filename-escaped form
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Validate text as a PEP 508 environment marker; return an exception
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Evaluate a PEP 508 environment marker.
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� Z d � Z d � Z d � Z d � Z d � Z RS( sE Try to implement resources and metadata for arbitrary PEP 302 loadersc C@ s: t | d d � | _ t j j t | d d � � | _ d S( NR� t __file__Rd ( R� Ra R� R� R� t dirnamet module_path( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s c C@ s | j | j | � S( N( t _fnR� ( R R R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s c C@ s t j | j | | � � S( N( t iot BytesIOR ( R R R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s c C@ s | j | j | j | � � S( N( t _getR� R� ( R R R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s c C@ s | j | j | j | � � S( N( t _hasR� R� ( R R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s c C@ s% | j o$ | j | j | j | � � S( N( t egg_infoR� R� ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� � s c C@ sE | j s
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%c C@ s t d � � d S( Ns9 Can't perform this operation for unregistered loader type( t NotImplementedError( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� � s c C@ s t d � � d S( Ns9 Can't perform this operation for unregistered loader type( R� ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� � s c C@ s t d � � d S( Ns9 Can't perform this operation for unregistered loader type( R� ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� � s c C@ s& | r" t j j | | j d � � S| S( Nt /( R� R� Rk R ( R t baseR ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� � s c C@ s2 t | j d � r" | j j | � St d � � d S( Nt get_datas= Can't perform this operation for loaders without 'get_data()'( R� R� R� R� ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� � s N( R R R Ra t egg_nameR� R� R R R R R R� R� R� R R� R} R Rs R� R� R� R� R� ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� � s, c B@ s e Z d Z d � Z d � Z RS( s& Provider based on a virtual filesystemc C@ s t j | | � | j � d S( N( R� R t
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s ( R R R R R� ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� s c B@ sJ e Z d Z d � Z d � Z d � Z d � Z d � Z e d � � Z RS( s6 Provides access to package resources in the filesystemc C@ s t j j | � S( N( R� R� R� ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� s c C@ s t j j | � S( N( R� R� R ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� s c C@ s
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R R R R� R� R� R R� RL R� ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� s c B@ s< e Z d Z d � Z Z d � Z d � Z d Z d � Z RS( s. Provider that returns nothing for all requestsc C@ s t S( N( R� ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRc 9 Rd c C@ s d S( NRd ( ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRc : Rd c C@ s g S( N( ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyRc ; Rd c C@ s d S( N( ( R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR > s N(
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t ZipManifestsc B@ s# e Z d Z e d � � Z e Z RS( s
zip manifest builder
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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@ s3 | ]) } | j d t j � � j | � f Vq d S( R� N( R0 R� t sept getinfo( RP R� ( t zfile( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pys <genexpr>U s N( t ContextualZipFilet namelistRL ( R R� RR ( ( R� sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt buildJ s ( R R R RL R� t load( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� E s t MemoizedZipManifestsc B@ s) e Z d Z e j d d � Z d � Z RS( s%
Memoized zipfile manifests.
t manifest_mods manifest mtimec C@ sv t j j | � } t j | � j } | | k sC | | j | k rk | j | � } | j | | � | | <n | | j S( sW
Load a manifest at path or return a suitable manifest already loaded.
( R� R� t normpathR~ t st_mtimet mtimeR� R� t manifest( R R� R� R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� f s ( R R R R) t
namedtupleR� R� ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� ` s R� c B@ s) e Z d Z d � Z d � Z d � Z RS( sL
Supplement ZipFile class to support context manager for Python 2.6
c C@ s | S( N( ( R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt __enter__y s c C@ s | j � d S( N( t close( R R� R� t traceback( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt __exit__| s c O@ s8 t t j d � r" t j | | � St t | � j | � S( sI
Construct a ZipFile or ContextualZipFile as appropriate
R� ( R� t zipfilet ZipFileR R� t __new__( R Rb t kwargs( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� s ( R R R R� R� R� ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� t s c B@ s� e Z d Z d Z e � Z d � Z d � Z d � Z e
d � � Z d � Z e
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� Z d � Z d � Z d
� Z d � Z d � Z RS( s" Resource support for zips and eggsc C@ s* t j | | � | j j t j | _ d S( N( R� R R� t archiveR� R� t zip_pre( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s c C@ s@ | j | j � r# | t | j � St d | | j f � � d S( Ns %s is not a subpath of %s( R4 R� R� t AssertionError( R t fspath( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt
_zipinfo_name� s c C@ sd | j | } | j | j t j � rG | t | j � d j t j � St d | | j f � � d S( Ni s %s is not a subpath of %s( R� R4 R� R� R� R� R R� ( R t zip_pathR� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt _parts� s
!c C@ s | j j | j j � S( N( t _zip_manifestsR� R� R� ( R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt zipinfo� s c C@ s� | j s t d � � n | j | � } | j � } d j | j | � � | k r~ x* | D] } | j | | j | � � qX Wn | j | | � S( Ns5 resource_filename() only supported for .egg, not .zipR� ( R� R� t _resource_to_zipt _get_eager_resourcesRk R� t _extract_resourcet
_eager_to_zip( R R R R� t eagersR� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s
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Return True if the file_path is current for this zip_path
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c C@ s. | j | � } | | j k p- | | j � k S( N( R� R� R� ( R R� R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� s c C@ s | j | � | j � k S( N( R� R� ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� ! s c C@ s% t | j � j | j | � d � � S( N( ( R' R� R= R� ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� $ s c C@ s | j | j | j | � � S( N( R� R� R� ( R R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� ' s c C@ s | j | j | j | � � S( N( R� R� R� ( R R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� * s N( R R R Ra R� R� R� R R� R� R� R� R R� R� R� R� R� R� R� R� R� R� R� ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� � s$
4 c B@ s; e Z d Z d � Z d � Z d � Z d � Z d � Z RS( s* 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� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR = s c C@ s | d k o t j j | j � S( Ns PKG-INFO( R� R� R� ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� @ s c C@ s_ | d k r t d � � n t j | j d d d d �� } | j � } Wd QX| j | � | S( Ns PKG-INFOs( No metadata except PKG-INFO is availablet encodings utf-8t errorsR0 ( R� R� R
R� R� t _warn_on_replacement( R R� R t metadata( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� C s !
c C@ sG d j d � } | | k rC d } | j t � � } t j | � n d S( Ns �s utf-8s2 {self.path} could not be properly decoded in UTF-8( R� R� R� R> R? ( R R t replacement_charRq R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR L s
c C@ s t | j | � � S( N( R� R� ( R R� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� T s ( R R R R R� R� R R� ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� 1 s
c B@ s e Z d Z d � Z RS( ss 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� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR l s ( R R R R ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� X s c B@ s e Z d Z d � Z RS( s Metadata provider for .egg filesc C@ s` | j t j | _ | | _ | j rF t j j | j | j � | _ n | j | _ | j � d S( s- Create a metadata provider from a zipimporterN(
R� R� R� R� R� t prefixR� Rk R� R� ( R t importer( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR t s ! ( R R R R ( ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� q s RL t _distribution_findersc C@ s | t | <d S( sx 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
( t
importer_typet distribution_finder( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� � s c C@ s+ t | � } t t | � } | | | | � S( s. Yield distributions accessible via `path_item`( R R� R
( t path_itemt onlyR t finder( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR� � s c c@ s� | j j d � r d St | � } | j d � rH t j | d | �Vn | rR d Sxc | j d � D]R } t | � rb t j j
| | � } x( t t j
| � | � D] } | Vq� Wqb qb Wd S( s@
Find eggs in zip files; possibly multiple nested eggs.
s .whlNs PKG-INFOR R� ( R� t endswithR� R� R� t
from_filenameR} R� R� R� Rk t find_eggs_in_zipt zipimportt zipimporter( R R R R t subitemt subpathR� ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyR � s c C@ s d S( N( ( ( R R R ( ( sF /usr/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.pyt find_nothing� s c C@ s d � } t | d | d t �S( sL
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']
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