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N)r� r� r6 rg )r� �reqr� r r r r� � s
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zWorkingSet.__iter__Tc 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)a� Add `dist` to working set, associated with `entry`
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� d d d � � d | | <q. W| S)a List all distributions needed to (recursively) meet `requirements`
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� � Pq� Wq� Wt | � } | j � | | f S)ab 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.
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``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.
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thereof, specifying the distributions and versions required. The
return value is a sequence of the distributions that needed to be
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| � \ } } q Wd S)Nz.eggzEGG-INFO) r� r" �endswithr� r� �basenamer� rD r� �egg_rootr )r� r� �oldr� r r r r� k s zEggProvider._setup_prefixN)r� r� r� r� r� r� r r r r r� d s c @ sR e Z d Z d Z d d � Z d d � Z d d � Z d d � Z d
d � Z d S)
r� z6Provides access to package resources in the filesystemc C s t j j | � S)N)r� r� r� )r� r� r r r r� | s zDefaultProvider._hasc C s t j j | � S)N)r� r� r )r� r� r r r r� s zDefaultProvider._isdirc C s
t j | � S)N)r� �listdir)r� r� r r r r� � s zDefaultProvider._listdirc C s t | j | j | � d � S)N�rb)r r� r� )r� r� r� r r r r� � s z#DefaultProvider.get_resource_streamc
C s/ t | d � } z | j � SWd | j � Xd S)Nr� )r r �close)r� r� �streamr r r r� � s zDefaultProvider._getN) r� r� r� r� r� r� r� r� r� r r r r r� y s c @ sP e Z d Z d Z d d � Z Z d d � Z d d � Z d Z d d � Z d S) r� z.Provider that returns nothing for all requestsc C s d S)NFr )r� r� r r r r
� s zEmptyProvider.<lambda>c C s d S)Nr� r )r� r� r r r r
� s c C s g S)Nr )r� r� r r r r
� s Nc C s d S)Nr )r� r r r r� � s zEmptyProvider.__init__)
r� r� r� r� r� r� r� r� r� r� r r r r r� � s 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)af
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 �zipfile�ZipFile�namelistr� r� �sep�getinfo�AssertionErrorr� )r� �zipinfo�zfile�zitem�zpathr r r �build_zipmanifest� s r� c @ s� e Z d Z d Z d Z d d � Z d d � Z d d � Z d d
� Z e d d � � Z
d
d � Z d d � Z d d � Z
d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d S) r� z"Resource support for zips and eggsNc C s? t j | | � t | j j � | _ | j j t j | _ d S)N) r� r� r� r� �archiver� r� r� �zip_pre)r� r� r r r r� � s zZipProvider.__init__c C sF | j | j � r) | t | j � d � St d | | j f � � d S)Nz%s is not a subpath of %s)r� r� r� r� )r� �fspathr r r �
_zipinfo_name� s zZipProvider._zipinfo_namec C sj | j | } | j | j t j � rM | t | j � d d � j t j � St d | | j f � � d S)Nr� z%s is not a subpath of %s)r� r� r� r� r� r� r r� )r� �zip_pathr� r r r �_parts� s
'zZipProvider._partsc C s� | j s t d � � n | j | � } | j � } d j | j | � � | k r~ x* | D] } | j | | j | � � qX Wn | j | | � S)Nz5resource_filename() only supported for .egg, not .zipr� )r� r� �_resource_to_zip�_get_eager_resourcesrD r� �_extract_resource�
_eager_to_zip)r� r� r� r� �eagersr r r r r� � s
z!ZipProvider.get_resource_filenamec C s/ | j } | j d } t j | � } | | f S)Nr r� r� )r r r� )� file_size� date_time�time�mktime)�zip_stat�sizer� � timestampr r r �_get_date_and_size� s
z ZipProvider._get_date_and_sizec
C s� | | j � k r^ x9 | j � | D]' } | j | t j j | | � � } q# Wt j j | � S| j | j | � \ } } t s� t d � � n y)| j
| j | j | � � } | j
| | � r� | St d d t j j | � �\ } } t j | | j j | � � t j | � t | | | f � | j | | � y t | | � Wnm t j k
r�t j j | � r�| j
| | � r�| St j d k r�t | � t | | � | Sn � Yn XWn t j k
r�| j � Yn X| S)Nz>"os.rename" and "os.unlink" are not supported on this platformz .$extract�dirr= )�_indexr� r� r� rD r" r� r� r r r< r� r� � _is_current�_mkstemp�writer� r� r� r rK r �error�isfiler r r6 )
r� r� r� r �lastr� r� � real_path�outf�tmpnamr r r r� � s@ $
z ZipProvider._extract_resourcec C s� | j | j | � \ } } t j j | � s2 d St j | � } | j | k s_ | j | k rc d S| j j | � } t
| d � } | j � } | j � | | k S)zK
Return True if the file_path is current for this zip_path
Fr� )
r� r� r� r� r� r@ �st_size�st_mtimer� r� r r r� ) r� � file_pathr� r� r� r@ � zip_contents�f�
file_contentsr r r r� & s
zZipProvider._is_currentc C sa | j d k rZ g } x6 d D]. } | j | � r | j | j | � � q q W| | _ n | j S)N�native_libs.txt�eager_resources.txt)r� r� )r� r� r� r� )r� r� r r r r r� 7 s
z ZipProvider._get_eager_resourcesc C s� y | j SWn� t k
r� i } x� | j D]y } | j t j � } x^ | r� t j j | d d � � } | | k r� | | j | d � PqF | j � g | | <qF Wq+ W| | _ | SYn Xd S)Nr� r� r� ) � _dirindex�AttributeErrorr� r r� r� rD r� r� )r� �indr� �parts�parentr r r r� @ s
zZipProvider._indexc C s. | j | � } | | j k p- | | j � k S)N)r� r� r� )r� r� r� r r r r� Q s zZipProvider._hasc C s | j | � | j � k S)N)r� r� )r� r� r r r r� U s zZipProvider._isdirc C s% t | j � j | j | � f � � S)N)r� r� r� r� )r� r� r r r r� X s zZipProvider._listdirc C s | j | j | j | � � S)N)r� r� r� )r� r� r r r r� [ s zZipProvider._eager_to_zipc C s | j | j | j | � � S)N)r� r� r� )r� r� r r r r� ^ s z ZipProvider._resource_to_zip)r� r� r� r� r� r� r� r� r� rM r� r� r� r� r� r� r� r� r� r� r r r r r� � s
1 c @ sF e Z d Z d Z d d � Z d d � Z d d � Z d d � Z d
S) r� a* Metadata handler for standalone PKG-INFO files
Usage::
metadata = FileMetadata("/path/to/PKG-INFO")
This provider rejects all data and metadata requests except for PKG-INFO,
which is treated as existing, and will be the contents of the file at
the provided location.
c C s
| | _ d S)N)r� )r� r� r r r r� p s zFileMetadata.__init__c C s
| d k S)NzPKG-INFOr )r� r r r r r� s s zFileMetadata.has_metadatac C sH | d k r8 t | j d � } | j � } | j � | St d � � d S)NzPKG-INFO�rUz(No metadata except PKG-INFO is available)r r� r r� r� )r� r r� �metadatar r r r� v s
zFileMetadata.get_metadatac C s t | j | � � S)N)rq r� )r� r r r r r� ~ s z FileMetadata.get_metadata_linesN)r� r� r� r� r� r� r� r� r r r r r� d s
c @ s" e Z d Z d Z d d � Z d S)r� aq 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� r r r r� � s zPathMetadata.__init__N)r� r� r� r� r� r r r r r� � s c @ s" e Z d Z d Z d d � Z d S)r� z Metadata provider for .egg filesc C sr t | j � | _ | j t j | _ | | _ | j rX t j j | j | j � | _
n | j | _
| j � d S)z-Create a metadata provider from a zipimporterN) r� r� r� r� r� r� r� �prefixr� rD r� r� )r� �importerr r r r� � s ! zEggMetadata.__init__N)r� r� r� r� r� r r r r r� � s r �_distribution_findersc C s | t | <d S)ax Register `distribution_finder` to find distributions in sys.path items
`importer_type` is the type or class of a PEP 302 "Importer" (sys.path item
handler), and `distribution_finder` is a callable that, passed a path
item and the importer instance, yields ``Distribution`` instances found on
that path item. See ``pkg_resources.find_on_path`` for an example.N)r )�
importer_type�distribution_finderr r r r� � s c C s+ t | � } t t | � } | | | | � S)z.Yield distributions accessible via `path_item`)r r� r )� path_item�onlyr �finderr r r r\ � 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)NzPKG-INFOr r� z.egg) r� r� rc �
from_filenamerV r� r� r� rD � find_in_zip� zipimport� zipimporter)r r r r �subitem�subpathr� r r r r � s r c C s f S)Nr )r r r r r r � find_nothing� s r c c s 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) z6Yield distributions accessible on a sys.path directoryz.eggr zEGG-INFOz .egg-infoz
.dist-info�
precedencez .egg-linkN)�_normalize_cachedr� r� r �access�R_OKr" r� rc r
r� rD r� r� �
from_locationr} r\ r � readlinesr� �strip�rstrip) r r r r� r" �fullpathr r� �
entry_file� entry_lines�liner� r r r � find_on_path� s: ' "
( r �_namespace_handlers�_namespace_packagesc C s | t | <d S)a� Register `namespace_handler` to declare namespace packages
`importer_type` is the type or class of a PEP 302 "Importer" (sys.path item
handler), and `namespace_handler` is a callable like this::
def namespace_handler(importer,path_entry,moduleName,module):
# return a path_entry to use for child packages
Namespace handlers are only called if the importer object has already
agreed that it can handle the relevant path item, and they should only
return a subpath if the module __path__ does not already contain an
equivalent subpath. For an example namespace handler, see
``pkg_resources.file_ns_handler``.
N)r )r �namespace_handlerr r r r� � 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)zEEnsure that named package includes a subpath of path_item (if needed)N�__path__zNot a package:)r � find_modulerB r� r� �imp�
new_moduler! �_set_parent_nsr� r� r� r r� � load_module)� packageNamer r r� r� �handlerr r� r r r �
_handle_ns s*
r) c C s t j � z� | t k r d St j d } } d | k r� d j | j d � d d � � } t | � | t k r~ t | � n y t j | j
} Wq� t k
r� t d | � � Yq� Xn t j
| g � j | � t j
| g � x | D] } t | | � q� WWd t j � Xd S)z9Declare that package 'packageName' is a namespace packageNr= r� zNot a package:r� )r# � acquire_lockr rB r� rD r rY r� r� r! r� r� r� r� r) � release_lock)r' r� r� r r r r rY ( s&
"
c
C sb t j � zF x? t j | f � D]+ } t | | � } | r t | | � q q WWd t j � Xd S)zDEnsure that previously-declared namespace packages include path_itemN)r# r* r r� r) r� r+ )r r� �packager r r r r� H s
c C s` t j j | | j d � d � } t | � } x+ | j D] } t | � | k r8 Pq8 q8 W| Sd S)zBCompute an ns-package subpath for a filesystem or zipfile importerr= r� Nr� )r� r� rD r r r! )r r r' r� r �
normalizedr� r r r �file_ns_handlerR s " r. c C s d S)Nr )r r r' r� r r r �null_ns_handlere s r/ c C s t j j t j j | � � S)z1Normalize a file/dir name for comparison purposes)r� r� �normcase�realpath)r# r r r rx k s c C s= y | | SWn* t k
r8 t | � | | <} | SYn Xd S)N)r� rx )r# r� r� r r r r o s
r c C sU | j d � } | j � } | rQ d j | � } t t j | | t j | � n d S)Nr= )r r� rD �setattrrB r� )r' r� r r� r r r r% v s
r% c c s� t | t � rS xn | j � D]0 } | j � } | r | j d � r | Vq q Wn- x* | D]" } x t | � D] } | Vqm WqZ Wd S)zAYield non-empty/non-comment lines of a ``basestring`` or sequence�#N)r� r� �
splitlinesr r� rq )�strsr� �ssr r r rq ~ s
z
\s*(#.*)?$z\s*\\\s*(#.*)?$z\s*((\w|[-.])+)z!\s*(<=?|>=?|==|!=)\s*((\w|[-.])+)z\s*,z\s*\[z\s*\]z \w+(\.\w+)*$zL(?P<name>[^-]+)( -(?P<ver>[^-]+) (-py(?P<pyver>[^-]+) (-(?P<plat>.+))? )? )?z(\d+ | [a-z]+ | \.| -)�c�pre�previewzfinal-r] �rc�@�devc c s{ xo t j | � D]^ } t | | � } | s | d k r> q n | d d � d k re | j d � Vq d | Vq Wd Vd S)Nr= r� �
0123456789r� �*z*final)� component_rer r� �zfill)r� �partr r r �_parse_version_parts� s
rB c C s� g } x� t | j � � D]� } | j d � r� | d k rd x' | r` | d d k r` | j � q= Wn x' | r� | d d k r� | j � qg Wn | j | � q Wt | � S)a� Convert a version string to a chronologically-sortable key
This is a rough cross between distutils' StrictVersion and LooseVersion;
if you give it versions that would work with StrictVersion, then it behaves
the same; otherwise it acts like a slightly-smarter LooseVersion. It is
*possible* to create pathological version coding schemes that will fool
this parser, but they should be very rare in practice.
The returned value will be a tuple of strings. Numeric portions of the
version are padded to 8 digits so they will compare numerically, but
without relying on how numbers compare relative to strings. Dots are
dropped, but dashes are retained. Trailing zeros between alpha segments
or dashes are suppressed, so that e.g. "2.4.0" is considered the same as
"2.4". Alphanumeric parts are lower-cased.
The algorithm assumes that strings like "-" and any alpha string that
alphabetically follows "final" represents a "patch level". So, "2.4-1"
is assumed to be a branch or patch of "2.4", and therefore "2.4.1" is
considered newer than "2.4-1", which in turn is newer than "2.4".
Strings like "a", "b", "c", "alpha", "beta", "candidate" and so on (that
come before "final" alphabetically) are assumed to be pre-release versions,
so that the version "2.4" is considered newer than "2.4a1".
Finally, to handle miscellaneous cases, the strings "pre", "preview", and
"rc" are treated as if they were "c", i.e. as though they were release
candidates, and therefore are not as new as a version string that does not
contain them, and "dev" is replaced with an '@' so that it sorts lower than
than any other pre-release tag.
r> z*finalr� z*final-�00000000r� r� )rB r" r� r� r� �tuple)r� r� rA r r r rl � s c @ s� e Z d Z d Z f f d d d � Z d d � Z d d � Z d d d d
d � Z d d d d
� Z d d d � Z e
e � Z d d d � Z e
e � Z d d d � Z e
e � Z d S)re z3Object representing an advertised importable objectNc C sn t | � s t d | � � n | | _ | | _ t | � | _ t j d d j | � � j | _ | | _
d S)NzInvalid module namezx[%s]�,) �MODULErG r � module_namerD �attrsrd r� rD r� r� )r� r rG rH r� r� r r r r� � s "zEntryPoint.__init__c C sf d | j | j f } | j r< | d d j | j � 7} n | j rb | d d j | j � 7} n | S)Nz%s = %s�:r= z [%s]rE )r rG rH rD r� )r� r� r r r �__str__� s zEntryPoint.__str__c C s d t | � S)NzEntryPoint.parse(%r))r� )r� r r r r� � s zEntryPoint.__repr__Tc C s� | r | j | | � n t | j t � t � d g � } xO | j D]D } y t | | � } WqD t k
r� t d | | f � � YqD XqD W| S)Nr� z%r has no %r attribute)rK r� rG r rH r� r� r� )r� rK r r r� rk r r r �load� s !
zEntryPoint.loadc C s] | j r% | j r% t d | � � n t t t j t j | j j | j � | | � � � d S)Nz&Can't require() without a distribution) r� r� ri r� r rZ r� r r� )r� r r r r r rK � s zEntryPoint.requirec C s y� f } } | j d d � \ } } d | k rz | j d d � \ } } t j d | � } | j rn t � n | j } n d | k r� | j d d � \ } } t | j � � s� t � n | j � j d � } n Wn! t k
r� t d | � � Yn# X| | j � | j � | | | � Sd S) a Parse a single entry point from string `src`
Entry point syntax follows the form::
name = some.module:some.attr [extra1,extra2]
The entry name and module name are required, but the ``:attrs`` and
``[extras]`` parts are optional
�=r� �[zx[rI r= z9EntryPoint must be in 'name=module:attrs [extras]' formatN) r rd r� �specsrG r� rF r r )�cls�srcr� rH r� r �valuer� r r r r� � s&
zEntryPoint.parsec C s� t | � s t d | � � n i } xZ t | � D]L } | j | | � } | j | k rp t d | | j � � n | | | j <q1 W| S)zParse an entry point groupzInvalid group namezDuplicate entry point)rF rG rq r� r )rO rF �linesr� �thisr r� r r r � parse_group s zEntryPoint.parse_groupc 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)z!Parse a map of entry point groupsNz%Entry points must be listed in groupszDuplicate group name)r� r r$ rr rG r rT )rO �datar� �mapsrF rR r r r � parse_map) s zEntryPoint.parse_map)
r� r� r� r� r� rJ r� rK rK r� � classmethodrT rW r r r r re � s
c C sE | s
d St | � } | d j d � rA t | d d � d � S| S)Nr� r� zmd5=r� r� )r� )r r� r )r� �parsedr r r �_remove_md5_fragment> s rZ c @ s e Z d Z d Z d Z d d d d e d e d d � Z d d d � Z e e � Z e
d d � � Z d
d � Z d d
� Z
d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z e
e � Z d d � Z e
e � Z d d � Z e
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