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d g Z e j! e" � Z# d Z$ d Z% d e d d d e$ d f Z& d Z' d e( f d � � YZ) d e( f d � � YZ* d e( f d � � YZ+ d e+ f d � � YZ, d e, f d � � YZ- d! e, f d" � � YZ. e- Z/ e. Z0 d# e( f d$ � � YZ1 d% d& � Z2 d' � Z3 d( � Z4 d) � Z5 d S(* u PEP 376 implementation.i����( t unicode_literalsNi ( t DistlibExceptiont resources( t StringIO( t
get_schemet UnsupportedVersionError( t Metadatat METADATA_FILENAMEt WHEEL_METADATA_FILENAME( t parse_requirementt cached_propertyt parse_name_and_versiont read_exportst
write_exportst CSVReadert CSVWriteru Distributionu BaseInstalledDistributionu InstalledDistributionu EggInfoDistributionu DistributionPathu pydist-exports.jsonu pydist-commands.jsonu INSTALLERu RECORDu REQUESTEDu RESOURCESu SHAREDu
.dist-infot _Cachec B s) e Z d Z d � Z d � Z d � Z RS( uL
A simple cache mapping names and .dist-info paths to distributions
c C s i | _ i | _ t | _ d S( uZ
Initialise an instance. There is normally one for each DistributionPath.
N( t namet patht Falset generated( t self( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyt __init__0 s c C s' | j j � | j j � t | _ d S( uC
Clear the cache, setting it to its initial state.
N( R t clearR R R ( R ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyR 8 s
c C sH | j | j k rD | | j | j <| j j | j g � j | � n d S( u`
Add a distribution to the cache.
:param dist: The distribution to add.
N( R R t
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Represents a set of distributions installed on a path (typically sys.path).
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Create an instance from a path, optionally including legacy (distutils/
setuptools/distribute) distributions.
:param path: The path to use, as a list of directories. If not specified,
sys.path is used.
:param include_egg: If True, this instance will look for and return legacy
distributions as well as those based on PEP 376.
u defaultN( t Nonet sysR t Truet
_include_distt _include_eggR t _cachet
_cache_eggt _cache_enabledR t _scheme( R R t include_egg( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyR N s c C s | j S( N( R( ( R ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyt _get_cache_enabledb s c C s
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Clears the internal cache.
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Yield .dist-info and/or .egg(-info) distributions.
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c C s� | j j } | j o | j j } | s/ | r� xF | j � D]8 } t | t � rd | j j | � q< | j j | � q< W| r� t | j _ n | r� t | j _ q� n d S( uk
Scan the path for distributions and populate the cache with
those that are found.
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The *name* and *version* parameters are converted into their
filename-escaped form, i.e. any ``'-'`` characters are replaced
with ``'_'`` other than the one in ``'dist-info'`` and the one
separating the name from the version number.
:parameter name: is converted to a standard distribution name by replacing
any runs of non- alphanumeric characters with a single
``'-'``.
:type name: string
:parameter version: is converted to a standard version string. Spaces
become dots, and all other non-alphanumeric characters
(except dots) become dashes, with runs of multiple
dashes condensed to a single dash.
:type version: string
:returns: directory name
:rtype: stringu -u _( t replaceR; R9 ( t clsR t version( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyt distinfo_dirname� s c c s� | j s( xv | j � D] } | Vq WnZ | j � x | j j j � D] } | VqE W| j r� x" | j j j � D] } | Vqp Wn d S( u5
Provides an iterator that looks for distributions and returns
:class:`InstalledDistribution` or
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:rtype: iterator of :class:`InstalledDistribution` and
:class:`EggInfoDistribution` instances
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Looks for a named distribution on the path.
This function only returns the first result found, as no more than one
value is expected. If nothing is found, ``None`` is returned.
:rtype: :class:`InstalledDistribution`, :class:`EggInfoDistribution`
or ``None``
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r[ t d | | f � � q_ Xn x� | j � D]z } | j } xh | D]` } t | � \ } } | d k r� | | k r� | VPq� q� | | k r� | j | � r� | VPq� q� Wql Wd S( u
Iterates over all distributions to find which distributions provide *name*.
If a *version* is provided, it will be used to filter the results.
This function only returns the first result found, since no more than
one values are expected. If the directory is not found, returns ``None``.
:parameter version: a version specifier that indicates the version
required, conforming to the format in ``PEP-345``
:type name: string
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u %s (%s)u invalid name or version: %r, %rN( R! R) t matchert
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Return the path to a resource file.
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Return all of the exported entries in a particular category.
:param category: The category to search for entries.
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N( R R R R! R R R+ R- t propertyt
cache_enabledR. RM RR t classmethodRV RX R[ Rd Rh Rm ( ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyR J s * $ t Distributionc B s� e Z d Z e Z e Z d � Z e d � � Z e Z e d � � Z
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A base class for distributions, whether installed or from indexes.
Either way, it must have some metadata, so that's all that's needed
for construction.
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Initialise an instance.
:param metadata: The instance of :class:`Metadata` describing this
distribution.
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The source archive download URL for this distribution.
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A utility property which displays the name and version in parentheses.
u %s (%s)( R RU ( R ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyt name_and_versiona s c C sB | j j } d | j | j f } | | k r> | j | � n | S( u�
A set of distribution names and versions provided by this distribution.
:return: A set of "name (version)" strings.
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c C sS | j } t j d | j � � t | | � } t | j | d | j d | j �� S( Nu% Getting requirements from metadata %rRt R2 ( R1 R? R@ t todictt getattrR3 t get_requirementsRt Ru ( R t req_attrt mdt reqts( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyt _get_requirementst s
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Say if this instance matches (fulfills) a requirement.
:param req: The requirement to match.
:rtype req: str
:return: True if it matches, else False.
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c C s6 | j r d | j } n d } d | j | j | f S( uC
Return a textual representation of this instance,
u [%s]u u <Distribution %s (%s)%s>( Rx R RU ( R t suffix( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyt __repr__� s c C s[ t | � t | � k r! t } n6 | j | j k oT | j | j k oT | j | j k } | S( u<
See if this distribution is the same as another.
:param other: The distribution to compare with. To be equal to one
another. distributions must have the same type, name,
version and source_url.
:return: True if it is the same, else False.
( t typeR R RU Rx ( R t otherRZ ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyt __eq__� s c C s' t | j � t | j � t | j � S( uH
Compute hash in a way which matches the equality test.
( t hashR RU Rx ( R ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyt __hash__� s ( R R R R t build_time_dependencyt requestedR Rn Rx t download_urlRy R^ R� R� R� R� R� R� R� R� R� R� ( ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyRq 5 s$ "
t BaseInstalledDistributionc B s, e Z d Z d Z d d � Z d d � Z RS( u]
This is the base class for installed distributions (whether PEP 376 or
legacy).
c C s, t t | � j | � | | _ | | _ d S( u
Initialise an instance.
:param metadata: An instance of :class:`Metadata` which describes the
distribution. This will normally have been initialised
from a metadata file in the ``path``.
:param path: The path of the ``.dist-info`` or ``.egg-info``
directory for the distribution.
:param env: This is normally the :class:`DistributionPath`
instance where this distribution was found.
N( t superR� R R t dist_path( R R1 R R2 ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyR � s c C s� | d k r | j } n | d k r6 t j } d } n t t | � } d | j } | | � j � } t j | � j d � j d � } d | | f S( u�
Get the hash of some data, using a particular hash algorithm, if
specified.
:param data: The data to be hashed.
:type data: bytes
:param hasher: The name of a hash implementation, supported by hashlib,
or ``None``. Examples of valid values are ``'sha1'``,
``'sha224'``, ``'sha384'``, '``sha256'``, ``'md5'`` and
``'sha512'``. If no hasher is specified, the ``hasher``
attribute of the :class:`InstalledDistribution` instance
is used. If the hasher is determined to be ``None``, MD5
is used as the hashing algorithm.
:returns: The hash of the data. If a hasher was explicitly specified,
the returned hash will be prefixed with the specified hasher
followed by '='.
:rtype: str
u u %s=t =u asciiu %s%sN(
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Created with the *path* of the ``.dist-info`` directory provided to the
constructor. It reads the metadata contained in ``pydist.json`` when it is
instantiated., or uses a passed in Metadata instance (useful for when
dry-run mode is being used).
u sha256c C s� t j | � | _ } | d k r; d d l } | j � n | rr | j rr | | j j k rr | j j | j } n� | d k r$| j
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d t | f � � n t j | j � � � } t d | d d � } Wd QXn t t | � j | | | � | rb| j rb| j j | � n y | j
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r�d d l } | j � n X| d k | _ d S( Ni����u METADATAu no %s found in %sR/ R0 u legacyu REQUESTED( R R4 RD R! t pdbt set_traceR( R& R R1 R5 R R R] R< R= R> R R� RO R R t AttributeErrorR� ( R R R1 R2 RD R� RE RL ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyR s4
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c C s d | j | j | j f S( Nu# <InstalledDistribution %r %s at %r>( R RU R ( R ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyR� 2 s c C s d | j | j f S( Nu %s %s( R RU ( R ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyt __str__6 s c
C s� g } | j d � } t j | j � � �� } t d | � �i } x_ | D]W } g t t | � d � D] } d ^ qb } | | \ } } }
| j | | |
f � qF WWd QXWd QX| S( u"
Get the list of installed files for the distribution
:return: A list of tuples of path, hash and size. Note that hash and
size might be ``None`` for some entries. The path is exactly
as stored in the file (which is as in PEP 376).
u RECORDRL i N( t get_distinfo_resourceR< R= R> R t ranget lenR! R ( R t resultsRE RL t
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(&c C s. i } | j t � } | r* | j � } n | S( u
Return the information exported by this distribution.
:return: A dictionary of exports, mapping an export category to a dict
of :class:`ExportEntry` instances describing the individual
export entries, and keyed by name.
( R� t EXPORTS_FILENAMER ( R RZ RE ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyRi P s
c C sL i } | j t � } | rH t j | j � � � } t | � } Wd QXn | S( u�
Read exports data from a file in .ini format.
:return: A dictionary of exports, mapping an export category to a list
of :class:`ExportEntry` instances describing the individual
export entries.
N( R� R� R< R= R> R ( R RZ RE RL ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyR ^ s c C s8 | j t � } t | d � � } t | | � Wd QXd S( u
Write a dictionary of exports to a file in .ini format.
:param exports: A dictionary of exports, mapping an export category to
a list of :class:`ExportEntry` instances describing the
individual export entries.
u wN( t get_distinfo_fileR� t openR
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m s c C s� | j d � } t j | j � � �F } t d | � �. } x$ | D] \ } } | | k r@ | Sq@ WWd QXWd QXt d | � � d S( uW
NOTE: This API may change in the future.
Return the absolute path to a resource file with the given relative
path.
:param relative_path: The path, relative to .dist-info, of the resource
of interest.
:return: The absolute path where the resource is to be found.
u RESOURCESRL Nu3 no resource file with relative path %r is installed( R� R< R= R> R t KeyError( R Rg RE RL t resources_readert relativet destination( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyRf x s c c s x | j � D] } | Vq
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Iterates over the ``RECORD`` entries and returns a tuple
``(path, hash, size)`` for each line.
:returns: iterator of (path, hash, size)
N( R� ( R RZ ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyt list_installed_files� s c C s� t j j | d � } t j j | j � } | j | � } t j j | d � } | j d � } t j d | � | rw d St | � �} x� | D]� } t j j
| � s� | j d � r� d } }
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f � q� W| j | � r�t j j | | � } n | j | d d f � Wd QX| S(
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Writes the ``RECORD`` file, using the ``paths`` iterable passed in. Any
existing ``RECORD`` file is silently overwritten.
prefix is used to determine when to write absolute paths.
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C s� g } t j j | j � } | j d � } xn| j � D]`\ } } } t j j | � sp t j j | | � } n | | k r� q7 n t j j | � s� | j | d t t
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Checks that the hashes and sizes of the files in ``RECORD`` are
matched by the files themselves. Returns a (possibly empty) list of
mismatches. Each entry in the mismatch list will be a tuple consisting
of the path, 'exists', 'size' or 'hash' according to what didn't match
(existence is checked first, then size, then hash), the expected
value and the actual value.
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mismatchesR� R� R R� R� t actual_sizeR� R� t actual_hash( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyt check_installed_files� s. ,c C s� i } t j j | j d � } t j j | � r� t j | d d d �� } | j � j � } Wd QXx[ | D]P } | j d d � \ } } | d k r� | j | g � j
| � qj | | | <qj Wn | S( u�
A dictionary of shared locations whose keys are in the set 'prefix',
'purelib', 'platlib', 'scripts', 'headers', 'data' and 'namespace'.
The corresponding value is the absolute path of that category for
this distribution, and takes into account any paths selected by the
user at installation time (e.g. via command-line arguments). In the
case of the 'namespace' key, this would be a list of absolute paths
for the roots of namespace packages in this distribution.
The first time this property is accessed, the relevant information is
read from the SHARED file in the .dist-info directory.
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Write shared location information to the SHARED file in .dist-info.
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written.
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Represents a dependency graph between distributions.
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dependencies are found, they are stored in ``missing``, which is a
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c C s i | _ i | _ i | _ d S( N( t adjacency_listt reverse_listR� ( R ( ( s@ /usr/lib/python2.7/site-packages/pip/_vendor/distlib/database.pyR . s c C s g | j | <g | j | <d S( u� Add the *distribution* to the graph.
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Add a missing *requirement* for the given *distribution*.
:type distribution: :class:`distutils2.database.InstalledDistribution`
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Perform a topological sort of the graph.
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circular dependencies and so form a cycle.
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:parameter dists: a list of distributions
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:rtype: a :class:`DependencyGraph` instance
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A convenience method for making a dist given just a name and version.
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