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Package resource API
--------------------
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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Used when there is an issue with a version or specifier not complying with
PEP 440.
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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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version of Mac OS X that we are *running*. To allow usage of packages that
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current version of the OS.
If this condition occurs for any other platform with a version in its
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c C@ sg t | t j � r$ t j | � } n t | t � rB t | � } n t | t � sc t d | � � n | S( s@ Return a current distribution object for a Requirement or strings- Expected string, Requirement, or Distribution( R R t string_typesR� t parseRs R� t TypeError( R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRt s c C@ s t | � j | | � S( sD Return `name` entry point of `group` for `dist` or raise ImportError( Rt Ru ( R� Rl R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRu ! s c C@ s t | � j | � S( s= Return the entry point map for `group`, or the full entry map( Rt Rv ( R� Rl ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRv % s c C@ s t | � j | | � S( s< Return the EntryPoint object for `group`+`name`, or ``None``( Rt Rw ( R� Rl R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRw ) 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� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt has_metadata0 Rc c C@ s d S( s' The named metadata resource as a stringN( ( R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt get_metadata3 Rc c C@ s d S( s� Yield named metadata resource as list of non-blank non-comment lines
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resource_name( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt get_resource_filenameI Rc c C@ s d S( si Return a readable file-like object for `resource_name`
`manager` must be an ``IResourceManager``N( ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt get_resource_streamN Rc c C@ s d S( sm Return a string containing the contents of `resource_name`
`manager` must be an ``IResourceManager``N( ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt get_resource_stringS Rc c C@ s d S( s, Does the package contain the named resource?N( ( R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt has_resourceX Rc c C@ s d S( s> Is the named resource a directory? (like ``os.path.isdir()``)N( ( R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR~ [ Rc c C@ s d S( s? List of resource names in the directory (like ``os.listdir()``)N( ( R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR| ^ Rc ( R R R R R R R R~ R| ( ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� F s c B@ s� e Z d Z d d � Z e d � � Z e d � � Z d � Z d � Z d � Z
d d � Z d � Z d � Z
d e e d
� Z d d e d � Z d d e d � Z d
� Z 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 callbacksR` Rh R� t add_entry( R R t entry( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt __init__e s
c C@ se | � } y d d l m } Wn t k
r1 | SXy | j | � Wn t k
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Prepare the master working set.
i ( t __requires__( t __main__R R� Rq R� t _build_from_requirements( t clst wsR ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt
_build_masterr 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 addRh R� R R ( R t req_specR t reqst distsR� R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/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 R5 R� R� R R� ( R R R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/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� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/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 R` R� ( R R� R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/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( Rv R` t values( R Rl R� R� R t ep( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRx � 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( Rh R� R� R[ Rq Rr ( R t requiresR� R� R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRr � 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 ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRA � 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.
R/ N(
t insert_onR R` t locationR R R R R5 t
_added_new( R R� R t insertR/ t keyst keys2( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR � s c C@ s� t | � d d d � } i } i } g } t j t � } x�| r�| j d � } | | k rd q= n | j | j � }
|
d k rc| j j | j � }
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j | j � d d d � } | j | � x" | D] } | | j | j � q�Wt | | <q= 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 collectionst defaultdictt setR4 R< R R` R R� R R� t
best_matchR� R5 R� R� R t extrast extendR t project_nameR� ( R t requirementst envt installert replace_conflictingt processedt bestt to_activateR� R� R� R R� t
dependent_reqt new_requirementst new_requirement( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR sB
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 sortR` R� R R� R R t as_requirementR R� RI RK RL ( R t
plugin_envt full_envR0 t fallbackt plugin_projectst
error_infot
distributionsR/ t
shadow_setR- R� R� t resolveesRF ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt find_pluginsP 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 R. t neededR� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRq � 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
R5 ( R t callbackR� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt subscribe� s
c C@ s" x | j D] } | | � q
Wd S( N( R
( R R� RD ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR" � s c C@ s* | j | j j � | j j � | j f S( N( R R RX R R
( R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRU � s c C@ sH | \ } } } } | | _ | j � | _ | j � | _ | | _ d S( N( R RX R R R
( R t e_k_b_cR R$ R R
( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRW � s
N( R R R R` R
t classmethodR R R R R� Rx Rr RA R� R� R R RB Rq RE R" RU RW ( ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� b s(
J 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 _distmapRi t pythont scan( R t search_pathRi RI ( ( sG /opt/alt/python27/lib/python2.7/site-packages/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( RI R` t
py_versionR� Ri ( R R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt can_add� s c C@ s | j | j j | � d S( s" Remove `dist` from the environmentN( RH R t remove( R R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRN � 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` Rh R� R� R ( R RK R R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRJ � 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.
( R2 RH R< ( R R- t distribution_key( ( sG /opt/alt/python27/lib/python2.7/site-packages/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(
RM t has_versionRH R R R5 R8 t operatort
attrgetterR� ( R R� R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR 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` R t obtain( R R� R� R0 R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR* 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 requirementR0 ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRU 0 s c c@ s0 x) | j j � D] } | | r | Vq q Wd S( s= Yield the unique project names of the available distributionsN( RH R$ ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRA < 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� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt __iadd__B 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 environmentRi RI N( R� R` ( R R t newR/ ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt __add__N s N( R R R R` Rp t PY_MAJORR
RM RN RJ R R R* RU RA RX RZ ( ( ( sG /opt/alt/python27/lib/python2.7/site-packages/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 ( ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� Z 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 ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR
n s c C@ s t | � j | � S( s Does the named resource exist?( Rs R ( R t package_or_requirementR ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR} q s c C@ s t | � j | � S( s, Is the named resource an existing directory?( Rs R~ ( R R] R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR~ u s c C@ s t | � j | | � S( s4 Return a true filesystem path for specified resource( Rs R ( R R] R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR{ { s c C@ s t | � j | | � S( s9 Return a readable file-like object for specified resource( Rs R ( R R] R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRz � s c C@ s t | � j | | � S( s% Return specified resource as a string( Rs R ( R R] R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRy � s c C@ s t | � j | � S( s1 List the contents of the named resource directory( Rs R| ( R R] R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/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(
Rh t exc_infot extraction_pathR� t textwrapt dedentt lstripR� R� R� R t
cache_patht original_error( R t old_excRc t tmplt err( ( sG /opt/alt/python27/lib/python2.7/site-packages/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 ( R_ R� R� R� Rj t _bypass_ensure_directoryRh t _warn_unsafe_extraction_pathR\ ( R t archive_namet namest extract_patht target_path( ( sG /opt/alt/python27/lib/python2.7/site-packages/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� R3 t environt statt st_modet S_IWOTHt S_IWGRPR= R> t UserWarning( R� t modet msg( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRj � 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� Rs Rt t chmod( R t tempnamet filenameRx ( ( sG /opt/alt/python27/lib/python2.7/site-packages/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( R\ Rm R_ ( R R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/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.
N( ( R t force( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� Rc N( ( R R R R` R_ R
R} R~ R{ Rz Ry R| Rh Ro t staticmethodRj R~ R� R� R� ( ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� j 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_CACHERp s ~/.python-eggss Application Datat APPDATAt USERPROFILEt HOMEDRIVEt HOMEPATHt HOMEt WINDIRRc s Python-Eggss3 Please set the PYTHON_EGG_CACHE enviroment variableN( R� ( ( R� N( R� ( R� R� ( R� ( R� ( ( R� N( R� ( R� Rr R� R� R� t
expanduserR` Rj t RuntimeError( t app_datat app_homesR$ t subdirt dirnameR ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.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.]+R$ ( R9 t sub( R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� G 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( R@ R
RD t VersionRE R/ R9 R� ( RD ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� O 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� ( R9 R� R2 ( t extra( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� [ 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 '_'.
R$ R� ( R/ ( R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� d s t MarkerEvaluationc B@ s< e Z i d � d 6d � d 6e j d 6d � d 6e j d 6e j d 6e j d 6e j d
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d � � Z RS( c C@ s t j S( N( R� R� ( ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRb n Rc t os_namec C@ s t j S( N( Rh Ri ( ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRb o Rc t sys_platformt python_full_versionc C@ s t j � d S( Ni ( Ri t python_version( ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRb q Rc R� t platform_versiont platform_machinet platform_python_implementationt python_implementationc C@ s5 y | j | � Wn t k
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Validate text as a PEP 426 environment marker; return an exception
if invalid or False otherwise.
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c C@ sE i d d 6d d 6} d | _ d | _ | j | j | j � | _ | S( s�
Given a SyntaxError from a marker evaluation, normalize the error
message:
- Remove indications of filename and line number.
- Replace platform-specific error messages with standard error
messages.
s invalid syntaxs unexpected EOF while parsings parenthesis is never closedN( R` R} t linenoR< Ry ( t exct subs( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � s
c C@ sK g t d t | � d � D] } | j | | � ^ q } t j t j | � S( Ni i ( t ranget lent interprett functoolst reduceRS t and_( R t nodelistt iRQ ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt and_test� s 5c C@ sK g t d t | � d � D] } | j | | � ^ q } t j t j | � S( Ni i ( R� R� R� R� R� RS t or_( R R� R� RQ ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt test� s 5c C@ sj | d d } | t j k rT | d d t j k rC t d � � n | j | d � Sd } t | � � d S( Ni i i s Empty parenthesess5 Language feature not supported in environment markers( t tokent LPARt RPARR� R� ( R R� t tRy ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt atom� s c C@ s� t | � d k r' d } t | � � n | d d } | d } | d t j k r� t | d � d k r� | d k r} d } q� d } q� n y | j | � } Wn- t k
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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 ( R� t parsert exprt totuple( R R� R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � s c C@ s t d � | j � D� � S( s�
Markerlib implements Metadata 1.2 (PEP 345) environment markers.
Translate the variables to Metadata 2.0 (PEP 426).
c s@ s- | ]# \ } } | j d d � | f Vq d S( R( R� N( R/ ( t .0R t value( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pys <genexpr>� s ( RK RQ ( R/ ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt _translate_metadata2� s c C@ sd d d l } | j | j � � } y | j | | � } Wn& t k
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Evaluate a PEP 426 environment marker using markerlib.
Return a boolean indicating the marker result in this environment.
Raise SyntaxError if marker is invalid.
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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� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/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� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/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� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � s c C@ s& | r" t j j | | j d � � S| S( Nt /( R� R� Rj R ( R t baseR ( ( sG /opt/alt/python27/lib/python2.7/site-packages/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� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � s N( i ( R R R R` t egg_nameR� R� R
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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( R/ R� t sept getinfo( R� R� ( t zfile( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pys <genexpr>� s N( t ContextualZipFilet namelistRK ( R R� RQ ( ( R sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt build� s ( R R R RG R t load( ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � 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.
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Supplement ZipFile class to support context manager for Python 2.6
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Construct a ZipFile or ContextualZipFile as appropriate
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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 Rj R5 R4 ( R t indR� R6 t parent( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR- � s
c C@ s. | j | � } | | j k p- | | j � k S( N( R R R- ( R R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � s c C@ s | j | � | j � k S( N( R R- ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � s c C@ s% t | j � j | j | � d � � S( N( ( R& R- R< R ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � s c C@ s | j | j | j | � � S( N( R R� R� ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR" � s c C@ s | j | j | j | � � S( N( R R� R� ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR � s N( R R R R` R# R R R
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4 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
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� s c C@ s | d k o t j j | j � S( Ns PKG-INFO( R� R� R4 ( R R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � s c C@ sM | d k r= t j | j d d �� } | j � } Wd QX| St d � � d S( Ns PKG-INFOt encodings utf-8s( No metadata except PKG-INFO is available( R� R
R� R� R� ( R R� R< t metadata( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � s
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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� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR
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( ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � 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� Rj R� R� ( R t importer( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR
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( ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � s RK 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( RF ( t
importer_typet distribution_finder( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� s c C@ s+ t | � } t t | � } | | | | � S( s. Yield distributions accessible via `path_item`( R R� RF ( t path_itemt onlyRE t finder( ( sG /opt/alt/python27/lib/python2.7/site-packages/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
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Find eggs in zip files; possibly multiple nested eggs.
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from_filenameR| R� R� R� Rj t find_eggs_in_zipt zipimportt zipimporter( RE RI RJ RC t subitemt subpathR� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRN s c C@ s d S( N( ( ( RE RI RJ ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt find_nothing/ s c c@ s t | � } t j j | � rt j | t j � rt | � rn t j | d t | t j j
| d � � �Vqx�t j | � D]�} | j � } | j
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t
FileFindert _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( Rb ( RG t namespace_handler( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� d 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 | � t | | | � n | S( sE Ensure that named package includes a subpath of path_item (if needed)t __path__s Not a package:N( R R` t find_moduleRh R� R< t typest
ModuleTypeRe t _set_parent_nsR� R� R� Rb R5 t load_modulet _rebuild_mod_path( t packageNameRI RE R� R� t handlerRR R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt
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c @ sI | j t j � } | � j d � d } � j t t j j | � � � S( sR
Return the ordinal of the path based on its position in sys.path
R( i ( R R� R t countt indexRU Rj ( t pR6 ( t package_namet sys_path( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt position_in_sys_path� s R N( Rh R� RU R8 Re ( t orig_pathRr R� Rq Rt ( ( Rr Rs sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRk � 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
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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:( t _impt acquire_lockRc Rh R� R` Rj R R R� R� Re R? R� R R5 Rn t release_lock( Rl R� RA RI ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR � 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( ( Rv Rw Rc R< Rn R� Rx ( RI RA t packageRR ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � 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� Rj R RU Re ( RE RI Rl R� RR t
normalizedR ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt file_ns_handler� s " c C@ s d S( N( R` ( RE RI Rl R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt null_ns_handler� s c C@ s t j j t j j | � � S( s1 Normalize a file/dir name for comparison purposes( R� R� t normcaset realpath( R} ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � s c C@ s9 y | | SWn& t k
r4 t | � | | <} | SXd S( N( R� R� ( R} R� R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRU � s
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Determine if given path appears to be an unpacked egg.
s .egg( R2 RL ( R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� � s c C@ sU | j d � } | j � } | rQ d j | � } t t j | | t j | � n d S( NR( ( R R4 Rj t setattrRh R� ( Rl R6 R� RA ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRi � s
c c@ s� t | t j � rV xn | j � D]0 } | j � } | r | j d � r | Vq q Wn- x* | D]" } x t | � D] } | Vqp Wq] Wd S( s9 Yield non-empty/non-comment lines of a string or sequencet #N( R R R� t
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+ s "c C@ sf d | j | j f } | j r< | d d j | j � 7} n | j rb | d d j | j � 7} n | S( Ns %s = %st :R( s [%s]R� ( R� R� R� Rj R+ ( R R, ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� 4 s c C@ s d t | � S( Ns EntryPoint.parse(%r)( R@ ( R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� < s c O@ sO | s | s | r, t j d t d d �n | rE | j | | � n | j � S( sH
Require packages for this EntryPoint, then resolve it.
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c C@ sd t | j d d g d d �} y t j t | j | � SWn% t k
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Resolve the entry point from its module and attrs.
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c C@ si | j r% | j r% t d | � � n | j j | j � } t j | | | � } t t t j | � � d S( Ns& Can't require() without a distribution( R+ R� R� R R� R R& R R ( R R/ R0 R RQ ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRq X s
s] \s*(?P<name>.+?)\s*=\s*(?P<module>[\w.]+)\s*(:\s*(?P<attr>[\w.]+))?\s*(?P<extras>\[.*\])?\s*$c C@ s� | j j | � } | s0 d } t | | � � n | j � } | j | d � } | d rl | d j d � n d } | | d | d | | | � S( s Parse a single entry point from string `src`
Entry point syntax follows the form::
name = some.module:some.attr [extra1, extra2]
The entry name and module name are required, but the ``:attrs`` and
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s9 EntryPoint must be in 'name=module:attrs [extras]' formatR+ t attrR( R� R� ( ( t patternRg Rm t groupdictt
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d St j d | � } | j r2 t � � n | j S( NR� ( ( R� R� t specsRm R+ ( R t extras_specR� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR� | s c C@ s� t | � s t d | � � n i } xZ t | � D]L } | j | | � } | j | k rp t d | | j � � n | | | j <q1 W| S( s Parse an entry point groups Invalid group names Duplicate entry point( R� Rm R� R� R� ( R Rl t linesR� t thisR_ R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt parse_group� s c C@ s� t | t � r | j � } n t | � } i } x~ | D]v \ } } | d k rj | s[ q7 n t d � � n | j � } | | k r� t d | � � n | j | | | � | | <q7 W| S( s! Parse a map of entry point groupss% Entry points must be listed in groupss Duplicate group nameN( R RK RQ R� R` Rm RZ R� ( R t dataR� t mapsRl R� ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyt parse_map� s ( ( N( R R R R` R
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c S@ s | j � j d � S( Ns version:( R2 R3 ( R_ ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyRb � Rc Rc R� N( R t nextt itert partitionR� RZ R` ( R� t is_version_linet
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d S( Nt Unknown( R� R- R` R� t _versionRL Ri R! RT R� t _provider( R R! RC R- RD RL Ri RT ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR
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t | j � S( N( t hashRP ( R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR � s c C@ s | j | j k S( N( RP ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR � s c C@ s | j | j k S( N( RP ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR � s c C@ s | j | j k S( N( RP ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR � s c C@ s | j | j k S( N( RP ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR � s c C@ s& t | | j � s t S| j | j k S( N( R R� R� RP ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR � s c C@ s | | k S( N( ( R R ( ( sG /opt/alt/python27/lib/python2.7/site-packages/pkg_resources/__init__.pyR � s c C@ s: y | j SWn( t k
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'{project_name} ({version})' is being parsed as a legacy,
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