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--------------------
A resource is a logical file contained within a package, or a logical
subdirectory thereof. The package resource API expects resource names
to have their path parts separated with ``/``, *not* whatever the local
path separator is. Do not use os.path operations to manipulate resource
names being passed into the API.
The package resource API is designed to work with normal filesystem packages,
.egg files, and unpacked .egg files. It can also work in a limited way with
.zip files and with custom PEP 302 loaders that support the ``get_data()``
method.
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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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distutils. But what we want when checking compatibility is to know the
version of Mac OS X that we are *running*. To allow usage of packages that
explicitly require a newer version of Mac OS X, we must also know the
current version of the OS.
If this condition occurs for any other platform with a version in its
platform strings, this function should be extended accordingly.
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WorkingSett ResourceManagert Distributiont Requirementt
EntryPointt ResolutionErrort VersionConflictt DistributionNotFoundt UnknownExtrat ExtractionErrort parse_requirementst
parse_versiont safe_namet safe_versiont get_platformt compatible_platformst yield_linest split_sectionst
safe_extrat to_filenamet invalid_markert evaluate_markert ensure_directoryt normalize_patht EGG_DISTt BINARY_DISTt SOURCE_DISTt
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EmptyProvidert empty_providert NullProvidert EggProvidert DefaultProvidert ZipProvidert register_findert register_namespace_handlert register_loader_typet fixup_namespace_packagest get_importert run_maint AvailableDistributionsc B s e Z d Z d � Z RS( s. Abstract base for dependency resolution errorsc C s | j j t | j � S( N( t __class__t __name__t reprR> ( t self( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt __repr__� s ( R� t
__module__t __doc__R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRg � s c B s e Z d Z RS( sA An already-installed version conflicts with the requested version( R� R� R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRh � s c B s e Z d Z RS( s& A requested distribution was not found( R� R� R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRi � s c B s e Z d Z RS( s> Distribution doesn't have an "extra feature" of the given name( R� R� R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRj � s i i i c C s | t | <d S( s Register `provider_factory` to make providers for `loader_type`
`loader_type` is the type or class of a PEP 302 ``module.__loader__``,
and `provider_factory` is a function that, passed a *module* object,
returns an ``IResourceProvider`` for that module.
N( t _provider_factories( t loader_typet provider_factory( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s� t | t � r2 t j | � p1 t t | � � d Sy t j | } Wn( t k
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C sO | d k s$ | d k s$ | | k r( t St j | � } | rKt j | � } | s� t j | � } | r� t | j d � � } d | j d � | j d � f } | d k r� | d k s� | d k r� | d k r� t Sn t S| j d � | j d � k s| j d � | j d � k rt St | j d � � t | j d � � k rGt St St S(
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i s %s.%si i s 10.3i s 10.4i N( R t TrueRB RC t darwinVersionStringR� RG t False( t providedt requiredt reqMact provMact
provDarwint dversiont macosversion( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRq 3 s* $" *c C sN t j d � j } | d } | j � | | d <t | � d j | | � d S( s@ Locate distribution `dist_spec` and run its `script_name` scripti R� i N( R R R
R7 RL RM ( t dist_spect script_namet nsR# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRM f s
c C sd t | t � r! t j | � } n t | t � r? t | � } n t | t � s` t d | � � n | S( s@ Return a current distribution object for a Requirement or strings- Expected string, Requirement, or Distribution( R� t
basestringRe t parseRN Rd t TypeError( t dist( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRO p s c C s t | � j | | � S( sD Return `name` entry point of `group` for `dist` or raise ImportError( RO RP ( R� RG R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRP x s c C s t | � j | � S( s= Return the entry point map for `group`, or the full entry map( RO RQ ( R� RG ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRQ | s c C s t | � j | | � S( s< Return the EntryPoint object for `group`+`name`, or ``None``( RO RR ( R� RG R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRR � s c B s> e Z d � Z d � Z d � Z d � Z d � Z d � Z RS( c C s d S( s; Does the package's distribution contain the named metadata?N( ( R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt has_metadata� s c C s d S( s' The named metadata resource as a stringN( ( R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt get_metadata� s c C s d S( s� Yield named metadata resource as list of non-blank non-comment lines
Leading and trailing whitespace is stripped from each line, and lines
with ``#`` as the first non-blank character are omitted.N( ( R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt get_metadata_lines� s c C s d S( s> Is the named metadata a directory? (like ``os.path.isdir()``)N( ( R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt metadata_isdir� s c C s d S( s? List of metadata names in the directory (like ``os.listdir()``)N( ( R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt metadata_listdir� s c C s d S( s= Execute the named script in the supplied namespace dictionaryN( ( R� t namespace( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRM � s ( R� R� R� R� R� R� R� RM ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR � s c B sD e Z d Z d � Z d � Z d � Z d � Z d � Z d � Z RS( s3 An object that provides access to package resourcesc C s d S( sd Return a true filesystem path for `resource_name`
`manager` must be an ``IResourceManager``N( ( t managert
resource_name( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt get_resource_filename� s 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� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt get_resource_string� s c C s d S( s, Does the package contain the named resource?N( ( R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt has_resource� s c C s d S( s> Is the named resource a directory? (like ``os.path.isdir()``)N( ( R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRY � s c C s d S( s? List of resource names in the directory (like ``os.listdir()``)N( ( R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRW � s ( R� R� R� R� R� R� R� RY RW ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c B s� e Z d Z d d � Z d � Z d � Z d � Z d d � Z d � Z d � Z
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� 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 callbacksR R R� t add_entry( R� R� t entry( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt __init__� 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``.)
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setdefaultR� R� R] R� t addR� ( R� R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s
c C s | j j | j � | k S( s9 True if `dist` is the active distribution for its project( R� R� R9 ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt __contains__� s c C sG | j j | j � } | d k r? | | k r? t | | � � n | Sd 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� R9 R Rh ( R� t reqR� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.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( RQ R t values( R� RG R# R� R� t ep( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRS 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( R R R
R7 RL RM ( R� t requiresR� R� R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRM 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 itemR9 ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt __iter__ s
c C s� | r | j | j | � n | d k r4 | j } n | j j | g � } | j j | j g � } | j | j k rw 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. If it's added, any
callbacks registered with the ``subscribe()`` method will be called.
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| j � d d d � � t | | <q. W| S( s 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``.
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best_matchRi R� Rh t extendR� t extrasR� ( R� t requirementst envt installert processedt bestt to_activateR� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt resolveM s. &c C sO t | � } | j � i } i } | d k rJ t | j � } | | 7} n
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� � Pq� Wq� Wt | � } | j � | | f S( sb Find all activatable distributions in `plugin_env`
Example usage::
distributions, errors = working_set.find_plugins(
Environment(plugin_dirlist)
)
map(working_set.add, distributions) # add plugins+libs to sys.path
print 'Could not load', errors # display errors
The `plugin_env` should be an ``Environment`` instance that contains
only distributions that are in the project's "plugin directory" or
directories. The `full_env`, if supplied, should be an ``Environment``
contains all currently-available distributions. If `full_env` is not
supplied, one is created automatically from the ``WorkingSet`` this
method is called on, which will typically mean that every directory on
``sys.path`` will be scanned for distributions.
`installer` is a standard installer callback as used by the
``resolve()`` method. The `fallback` flag indicates whether we should
attempt to resolve older versions of a plugin if the newest version
cannot be resolved.
This method returns a 2-tuple: (`distributions`, `error_info`), where
`distributions` is a list of the distributions found in `plugin_env`
that were loadable, along with any other distributions that are needed
to resolve their dependencies. `error_info` is a dictionary mapping
unloadable plugin distributions to an exception instance describing the
error that occurred. Usually this will be a ``DistributionNotFound`` or
``VersionConflict`` instance.
i N( R� t sortR Ra R� R� t mapR� t as_requirementR Rg R t exc_infoR8 t dictt fromkeys( R� t
plugin_envt full_envR� t fallbackt plugin_projectst
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distributionsR� t
shadow_sett project_nameR� R� t resolveesR1 ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt find_plugins| s6 #
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 Rl R� ( R� R� t neededR� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRL � s
c C sB | | j k r d S| j j | � x | D] } | | � q* Wd S( sA Invoke `callback` for all distributions (including existing ones)N( R� R� ( R� t callbackR� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt subscribe� s
c C s" x | j D] } | | � q
Wd S( N( R� ( R� R� R ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s* | j | j j � | j j � | j f S( N( R� R� R5 R� R� ( R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR2 � s c C sH | \ } } } } | | _ | j � | _ | j � | _ | | _ d S( N( R� R5 R� R� R� ( R� t e_k_b_cR� R� R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR4 � s
N( R� R� R� R R� R� R� R� RS RM R� R� R� R R RL R R� R2 R4 ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRb � s
0R 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
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s5 Searchable snapshot of distributions on a search pathc C s5 i | _ 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. ``'2.4'``);
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 _distmapR� RD t pythont scan( R� t search_pathRD R ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.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( R R t
py_versionRq RD ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt can_add s c C s | j | j j | � d S( s" Remove `dist` from the environmentN( R R9 t remove( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR 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( R R R� R] R� ( R� R R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR " s
c C s� y | j | SWn0 t k
rA | j � } | | j k rB g Sn X| | j k rv | j | } | j | <t | � n | j | S( sK Return a newest-to-oldest list of distributions for `project_name`
( R� R� t lowerR t _sort_dists( R� R t dists( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt __getitem__1 s
c C s | j | � r{ | j � r{ | j j | j g � } | | k r{ | j | � | j | j k rx t | j | j � qx q{ n d S( s< Add `dist` if we ``can_add()`` it and it isn't already addedN( R t has_versionR R� R9 R� R� R ( R� R� R! ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� A 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� R R9 t obtain( R� R� R[ R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� K 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( R ( R� t requirementR� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR$ ` s c c s0 x) | j j � D] } | | r | Vq q Wd S( s= Yield the unique project names of the available distributionsN( R R� ( R� R9 ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� l 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� Rd R� Ra R� ( R� t othert projectR� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt __iadd__t 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 environmentRD R N( R� R ( R� R& t newR� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt __add__� s N( R� R� R� R RK t PY_MAJORR� R R R R" R� R� R$ R� R( R* ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRa � 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� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRk � 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
e d
� � 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� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s t | � j | � S( s Does the named resource exist?( RN R� ( R� t package_or_requirementR� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRX � s c C s t | � j | � S( s, Is the named resource an existing directory?( RN RY ( R� R- R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRY � s c C s t | � j | | � S( s4 Return a true filesystem path for specified resource( RN R� ( R� R- R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRV � s c C s t | � j | | � S( s9 Return a readable file-like object for specified resource( RN R� ( R� R- R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRU � s c C s t | � j | | � S( s% Return specified resource as a string( RN R� ( R� R- R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRT � s c C s t | � j | � S( s1 List the contents of the named resource directory( RN RW ( R� R- R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRW � s c C s] t j � d } | j p t � } t d | | f � } | | _ | | _ | | _ | � 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:
%s
The Python egg cache directory is currently set to:
%s
Perhaps your account does not have write access to this directory? You can
change the cache directory by setting the PYTHON_EGG_CACHE environment
variable to point to an accessible directory.
N( R R t extraction_pathR` Rk R� t
cache_patht original_error( R� t old_excR/ t err( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.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 ( R. R` R� R� RE R" R3 t _warn_unsafe_extraction_pathR, ( R� t archive_namet namest extract_patht target_path( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.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
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If the default extraction path is overridden and set to an insecure
location, such as /tmp, it opens up an opportunity for an attacker to
replace an extracted file with an unauthorized payload. Warn the user
if a known insecure location is used.
See Distribute #375 for more details.
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# R� t environt statt st_modet S_IWOTHt S_IWGRPt warningst warnt UserWarning( R� R$ t msg( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR4 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 tempnameR& R$ ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt postprocess1 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( R, RH R. ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR^ Z 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.
N( ( R� t force( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR_ t s N( ( R� R� R� R R. R� RX RY RV RU RT RW R3 R9 t staticmethodR4 RH R^ R� R_ ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRc � s ) ) ) c C s y t j d SWn t k
r" n Xt j d k rB t j j d � Sd } d d | f d | f d | f d d | f g } x� | D]� \ } } d } xn | D]5 } | t j k r� t j j | t j | � } q� Pq� W| r� t j j | | � } n t j j | d � Sq Wt d
� � d S( s Determine the default cache location
This returns the ``PYTHON_EGG_CACHE`` environment variable, if set.
Otherwise, on Windows, it returns a "Python-Eggs" subdirectory of the
"Application Data" directory. On all other systems, it's "~/.python-eggs".
t PYTHON_EGG_CACHER: s ~/.python-eggss Application Datat APPDATAt USERPROFILEt HOMEDRIVEt HOMEPATHt HOMEt WINDIRR� s Python-Eggss3 Please set the PYTHON_EGG_CACHE enviroment variableN( s APPDATA( ( s APPDATAN( RM ( RN RO ( RO ( s HOME( ( s HOMEN( RQ ( R� R< R� R# R� t
expanduserR RE t RuntimeError( t app_datat app_homesR� t subdirR% R9 ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR` � s0
c C s t j d d | � S( s� Convert an arbitrary string to a standard distribution name
Any runs of non-alphanumeric/. characters are replaced with a single '-'.
s [^A-Za-z0-9.]+t -( t ret sub( R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRn � s c C s% | j d d � } t j d d | � S( s� Convert an arbitrary string to a standard version string
Spaces become dots, and all other non-alphanumeric characters become
dashes, with runs of multiple dashes condensed to a single dash.
R� R@ s [^A-Za-z0-9.]+RW ( R� RX RY ( R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRo � s c C s t j d d | � j � S( s� 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.
s [^A-Za-z0-9.]+R� ( RX RY R ( t extra( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRt � s c C s | j d d � S( s| Convert a project or version name to its filename-escaped form
Any '-' characters are currently replaced with '_'.
RW R� ( R� ( R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRu � s R# R� RD R R� R� t python_implementationt python_versiont python_full_versionRZ c C s t j S( N( R� R# ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR � s t os_namec C s t j S( N( R RD ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR � s t sys_platformc C s t j j � d S( Ni ( R R� R ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR � s c C s d t j d t j d f S( Ns %s.%si i ( R t version_info( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR � s c C s
t d � S( NR� ( t _platinfo( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR � s t platform_versionc C s
t d � S( NR� ( Ra ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR � s t platform_machinec C s t d � p t � S( NR[ ( Ra t _pyimp( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR � s c C s; y d d l } Wn t k
r$ d SXt | | d � � � S( Ni����R� c S s d S( NR� ( ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR � s ( RD R� R� ( t attrRD ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRa � s
c C sD t j d k r d St j j d � r) d Sd t j k r< d Sd Sd S( Nt clit
IronPythont javat Jythont __pypy__t PyPyt CPython( R RD R� t builtin_module_names( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRd � s c C s1 y t | � Wn t k
r, t j � d SXt S( sH Validate text as a PEP 426 environment marker; return exception or Falsei ( Rw t SyntaxErrorR R R� ( t text( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRv � s
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d d l m � m � d d l � d d l � d d l � � � f d � } � � f d � } � � f d � } � � � f d � } � j i | � j 6| � j 6| � j 6| � j 6d � d 6d
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Evaluate a PEP 426 environment marker on CPython 2.4+.
Return a boolean indicating the marker result in this environment.
Raise SyntaxError if marker is invalid.
This implementation uses the 'parser' module, which is not implemented on
Jython and has been superseded by the 'ast' module in Python 2.6 and
later.
i����( t NAMEt STRINGNc s? t � j g t d t | � d � D] } � | | � ^ q" � S( Ni i ( t reducet and_t ranget len( t nodelistt i( t interprett operator( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt and_test s c s? t � j g t d t | � d � D] } � | | � ^ q" � S( Ni i ( Rr t or_Rt Ru ( Rv Rw ( Rx Ry ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt test s c sa | d d } | � j k rQ | d d � j k rC t d � � n � | d � St d � � d S( Ni i i s Empty parenthesess5 Language feature not supported in environment markers( t LPARt RPARRn ( Rv t t( Rx t token( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt atom s c s� t | � d k r! t d � � n | d d } | d } | d � k r� t | d � d k r� | d k rt d } q} d } q� n y � | } Wn' t k
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Evaluate a PEP 426 environment marker using markerlib.
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� Z d � Z d � 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__R� ( R� R R� R� R� R% t module_path( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� v s c C s | j | j | � S( N( t _fnR� ( R� R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� z s c C s t | j | | � � S( N( R R� ( R� R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� } s c C s | j | j | j | � � S( N( t _getR� R� ( R� R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s | j | j | j | � � S( N( t _hasR� R� ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s% | j o$ | j | j | j | � � S( N( t egg_infoR� R� ( R� R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s i c C s) | j s
d S| j | j | j | � � S( NR� ( R� R� R� ( R� R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s2 | j s
d S| j | j | j | � � j d � S( NR� s utf-8( R� R� R� t decode( R� R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s t | j | � � S( N( Rr R� ( R� R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s | j | j | j | � � S( N( t _isdirR� R� ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRY � s c C s% | j o$ | j | j | j | � � S( N( R� R� R� ( R� R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s | j | j | j | � � S( N( t _listdirR� R� ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRW � s c C s) | j r% | j | j | j | � � Sg S( N( R� R� R� ( R� R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s� d | } | j | � s, t d | � � n | j | � j d d � } | j d d � } | j | j | � } | | d <t j j | � r� t | | | � nW d d l
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� } t | | | � d S( Ns scripts/s No script named %rs
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R� i����( t cachei R ( R� Rg R� R� R� R� R� R� R� R t linecacheR� Ru R R R ( R� R� R� t scriptt script_textt script_filenameR� t script_code( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRM � s
%c C s t d � � d S( Ns9 Can't perform this operation for unregistered loader type( t NotImplementedError( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s t d � � d S( Ns9 Can't perform this operation for unregistered loader type( R� ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s t d � � d S( Ns9 Can't perform this operation for unregistered loader type( R� ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s& | r" t j j | | j d � � S| S( Nt /( R� R� RE R ( R� t baseR� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.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� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s N( i ( R� R� R� R t egg_nameR� R� R� R� R� R� R� R� R R` R� R� RY R� RW R� RM R� R� R� R� R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� o s0 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
_setup_prefix( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s� | j } d } x} | | k r� | j � j d � rm t j j | � | _ t j j | d � | _ | | _
Pn | } t j j | � \ } } q Wd S( Ns .eggs EGG-INFO( R� R R t endswithR� R� t basenameR� RE R� t egg_rootR ( R� R� t oldR� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s ( R� R� R� R� R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c B s; e Z d Z d � Z d � Z d � Z d � Z d � Z RS( s6 Provides access to package resources in the filesystemc C s t j j | � S( N( R� R� R� ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s t j j | � S( N( R� R� R ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s
t j | � S( N( R� t listdir( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s t | j | j | � d � S( Nt rb( R R� R� ( R� R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s/ t | d � } z | j � SWd | j � Xd S( NR� ( R R t close( R� R� t stream( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s ( R� R� R� R� R� R� R� R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.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� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR s c C s d S( NR� ( ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR s c C s g S( N( ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR s c C s d S( N( ( R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� s N(
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c C s� t � } t j | � } zY xR | j � D]D } | j d t j � } | j | � | | <| | d k s( t � q( WWd | j
� X| S( sf
This builds a similar dictionary to the zipimport directory
caches. However instead of tuples, ZipInfo objects are stored.
The translation of the tuple is as follows:
* [0] - zipinfo.filename on stock pythons this needs "/" --> os.sep
on pypy it is the same (one reason why distribute did work
in some cases on pypy and win32).
* [1] - zipinfo.compress_type
* [2] - zipinfo.compress_size
* [3] - zipinfo.file_size
* [4] - len(utf-8 encoding of filename) if zipinfo & 0x800
len(ascii encoding of filename) otherwise
* [5] - (zipinfo.date_time[0] - 1980) << 9 |
zipinfo.date_time[1] << 5 | zipinfo.date_time[2]
* [6] - (zipinfo.date_time[3] - 1980) << 11 |
zipinfo.date_time[4] << 5 | (zipinfo.date_time[5] // 2)
* [7] - zipinfo.CRC
R� N( R t zipfilet ZipFilet namelistR� R� t sept getinfoR t AssertionErrorR� ( R� t zipinfot zfilet zitemt zpath( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt build_zipmanifest s c B s� e Z d Z d Z d � Z d � Z d � Z d � Z e d � � Z
d � Z d � Z d � Z
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� Z d � Z RS( s" Resource support for zips and eggsc C s? t j | | � t | j j � | _ | j j t j | _ d S( N( R� R� R� R� t archiveR� R� R� t zip_pre( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� @ s c C s@ | j | j � r# | t | j � St d | | j f � � d S( Ns %s is not a subpath of %s( R� R� Ru R� ( R� t fspath( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt
_zipinfo_nameE 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� R� R� R� R� Ru R R� ( R� t zip_pathR� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt _partsN 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_resourcesRE R� t _extract_resourcet
_eager_to_zip( R� R� R� R� t eagersR# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� W s
c C s/ | j } | j d } t j | � } | | f S( Ni i����( i i i����( t file_sizet date_timet timet mktime( t zip_statt sizeR� t timestamp( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt _get_date_and_sized s
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| | � r�| St j d k r�t | � t | | � | Sn � n XWn t j k
r�| j � n X| S( Ns> "os.rename" and "os.unlink" are not supported on this platforms .$extractt dirR: ( t _indexR� R� R� RE R% R� R� R R! R9 R� R� t _is_currentt _mkstempt writeR� R� R� R RH R t errort isfileR# R R3 (
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R� ( R� R� R� R� R� R� R= t st_sizet st_mtimeR� R� R R R� ( R� t file_pathR� R� R� R= t zip_contentst ft
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c C sa | j d k rZ g } x6 d D]. } | j | � r | j | j | � � q q W| | _ n | j S( Ns native_libs.txts eager_resources.txt( s native_libs.txts eager_resources.txt( R� R R� R� R� ( R� R� R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s
c C s� y | j SWn� t k
r� i } x~ | j D]s } | j t j � } xX | r� t j j | d � } | | k r� | | j | d � PqF | j � g | | <qF Wq+ W| | _ | SXd S( Ni����( t _dirindext AttributeErrorR� R R� R� RE R� R� ( R� t indR� t partst parent( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s
c C s. | j | � } | | j k p- | | j � k S( N( R� R� R� ( R� R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s | j | � | j � k S( N( R� R� ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s% t | j � j | j | � d � � S( N( ( R� R� R� R� ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s | j | j | j | � � S( N( R� R� R� ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s | j | j | j | � � S( N( R� R� R� ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s N( R� R� R� R R� R� R� R� R� RJ R� R� R� R� R� R� R� R� R� R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� ; s
1 c B s2 e 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� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s
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c C s t | j | � � S( N( Rr R� ( R� R# ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� s ( R� R� R� R� R� R� R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s
c B s e Z d Z d � Z RS( sq 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� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� 1 s ( R� R� R� R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� s c B s e Z d Z d � Z RS( s Metadata provider for .egg filesc C sr t | j � | _ | j t j | _ | | _ | j rX t j j | j | j � | _
n | j | _
| j � d S( s- Create a metadata provider from a zipimporterN( R� R� R� R� R� R� R� t prefixR� RE R� R� ( R� t importer( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� 9 s ! ( R� R� R� R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� 6 s t
ImpWrapperc B s& e Z d Z d d � Z d d � Z RS( s> PEP 302 Importer that wraps Python's "normal" import algorithmc C s
| | _ d S( N( R� ( R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� I s c C s� | j d � d } | | k r2 | j d k r2 d S| j d k rJ d } n | j g } y t j | | � \ } } } Wn t k
r� d SXt | | | � S( NR@ i����( R R� R t impt find_moduleR� t ImpLoader( R� t fullnameR� t subnamet fileR& t etc( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� L s
N( R� R� R� R R� R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� F s R� c B s e Z d Z d � Z d � Z RS( s< PEP 302 Loader that wraps Python's "normal" import algorithmc C s | | _ | | _ | | _ d S( N( R� R& R� ( R� R� R& R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� ^ s c C sF z% t j | | j | j | j � } Wd | j rA | j j � n X| S( N( R� t load_moduleR� R& R� R� ( R� R� t mod( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� c s
% ( R� R� R� R� R� ( ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� [ s c C s� y t j | } WnP t k
rc x@ t j D]+ } y | | � } Wn t k
rT q+ XPq+ Wd } n Xt j j | | � | d k r� y t | � } Wq� t k
r� q� Xn | S( s� Retrieve a PEP 302 "importer" for the given path item
If there is no importer, this returns a wrapper around the builtin import
machinery. The returned importer is only cached if it was created by a
path hook.
N( R t path_importer_cacheR� t
path_hooksR� R R� R� ( t path_itemR� t hook( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� o s"
( R� t ImpImporterR 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( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s+ t | � } t t | � } | | | | � S( s. Yield distributions accessible via `path_item`( R� R� R ( R� t onlyR� t finder( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR] � s c c s� t | � } | j d � r2 t j | d | �Vn | r< d Sxf | j d � D]U } | j d � rL t j j | | � } x( t t
j | � | � D] } | Vq� WqL qL Wd S( Ns PKG-INFOR� R� s .egg( R� R� Rd t
from_filenameRW R� R� R� RE t find_in_zipt zipimportt zipimporter( R� R� R R� t subitemt subpathR� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR � s c C s d S( N( ( ( R� R� R ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt find_nothing� s c
c s t | � } t j j | � r t j | t j � r | j � j d � rw t j | d t
| t j j | d � � �Vq x�t j | � D]}} | j � } | j d � s� | j d � rt j j | | � } t j j | � r� t
| | � } n t
| � } t j | | | d t �Vq� | r]| j d � r]x� t t j j | | � � D] } | VqKWq� | r� | j d � r� t t j j | | � � } z | j � } Wd | j � XxU | D]J }
|
j � s�q�n x. t t j j | |
j � � � D] } | Vq�WPq�Wq� q� Wn d S( s6 Yield distributions accessible on a sys.path directorys .eggR� s EGG-INFOs .egg-infos
.dist-infot
precedences .egg-linkN( t _normalize_cachedR� R� R t accesst R_OKR R� Rd R R� RE R� R� t
from_locationR~ R] R t readlinesR� t stript rstrip( R� R� R R� R t fullpathR� R� t
entry_filet entry_linest lineR� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt find_on_path� s: ' "
( t _namespace_handlerst _namespace_packagesc C s | t | <d S( s� Register `namespace_handler` to declare namespace packages
`importer_type` is the type or class of a PEP 302 "Importer" (sys.path item
handler), and `namespace_handler` is a callable like this::
def namespace_handler(importer,path_entry,moduleName,module):
# return a path_entry to use for child packages
Namespace handlers are only called if the importer object has already
agreed that it can handle the relevant path item, and they should only
return a subpath if the module __path__ does not already contain an
equivalent subpath. For an example namespace handler, see
``pkg_resources.file_ns_handler``.
N( R ( R t namespace_handler( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� � s c C s
t | � } | d k r d S| j | � } | d k r; d St j j | � } | d k r� t j | � } t j | <g | _ t | � n! t
| d � s� t d | � � n t t
| � } | | | | | � } | d k r | j } | j | � | j | � | | _ n | S( sE Ensure that named package includes a subpath of path_item (if needed)t __path__s Not a package:N( R� R R� R R� R� R� t
new_moduleR t _set_parent_nsR� R� R� R R� R� ( t packageNameR� R� R� R� t handlerR R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyt
_handle_ns� s*
c C s t j � z� | t k r d St j d } } d | k r� d j | j d � d � } t | � | t k rx t | � n y t j
| j } Wq� t k
r� t
d | � � q� Xn t j | g � j | � t j | g � x | D] } t | | � q� WWd t j � Xd S( s9 Declare that package 'packageName' is a namespace packageNR@ i����s Not a package:( R� t acquire_lockR R R� R RE R RZ R� R� R R� R� R� R� R# t release_lock( R! R� R� R� ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyRZ s&
c C sb t j � zF x? t j | d � D]+ } t | | � } | r t | | � q q WWd t j � Xd S( sD Ensure that previously-declared namespace packages include path_itemN( ( R� R$ R R� R# R� R% ( R� R� t packageR ( ( s1 /usr/lib/python2.7/site-packages/pkg_resources.pyR� 3 s
c C s` t j j | | j d � d � } t | � } x+ | j D] } t | � | k r8 Pq8 q8 W| Sd S( sB Compute an ns-package subpath for a filesystem or zipfile importerR@ i����N( R� R� RE R R R ( R� R� R! R� R t
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