Current File : //lib64/python3.6/__pycache__/pkgutil.cpython-36.pyc
3
\CS � @ sx d Z ddlmZ ddlmZ ddlZddlZddlZddl Z ddl
Z ddl Z ddl m
Z
ddlZdddd d
d d d
ddddg Zedd�Zde_ dd� Zdd� Zd+dd
�Zd,dd �Zed-dd��Zd.d d �Zejejje� d d � ZG d d
� d
�ZG d!d� d�Z y.ddl Z dd"l m Z d/d#d$�Z eje e � W n e k
�r@ Y nX d%d� Z!d0d&d�Z"d'd� Z#d(d � Z$d)d� Z%d*d � Z&dS )1z Utilities to support packages.� )�
namedtuple)�singledispatchN)�
ModuleType� get_importer�iter_importers�
get_loader� find_loader�
walk_packages� iter_modules�get_data� ImpImporter� ImpLoader� read_code� extend_path�
ModuleInfozmodule_finder name ispkgz.A namedtuple with minimal info about a module.c C sL y
| j }W n4 tk
r> | j|�}|dkr0dS tjj||�S X ||�S dS )z'Return the finder-specific module spec.N)� find_spec�AttributeError� find_module� importlib�util�spec_from_loader)�finder�namer �loader� r � /usr/lib64/python3.6/pkgutil.py� _get_spec s
r c C s6 dd l }| jd�}|tjjkr"d S | jd� |j| �S )Nr � � )�marshal�readr r � MAGIC_NUMBER�load)�streamr �magicr r r r ( s
� c
# s� i fdd�� x�t | |�D ]�}|V |jryt|j� W nN tk
r\ |dk rX||j� Y q tk
r� |dk r~||j� n� Y qX ttj|j dd�p�g } � fdd�| D �} t | |jd |�E dH qW dS )a� Yields ModuleInfo for all modules recursively
on path, or, if path is None, all accessible modules.
'path' should be either None or a list of paths to look for
modules in.
'prefix' is a string to output on the front of every module name
on output.
Note that this function must import all *packages* (NOT all
modules!) on the given path, in order to access the __path__
attribute to find submodules.
'onerror' is a function which gets called with one argument (the
name of the package which was being imported) if any exception
occurs while trying to import a package. If no onerror function is
supplied, ImportErrors are caught and ignored, while all other
exceptions are propagated, terminating the search.
Examples:
# list all modules python can access
walk_packages()
# list all submodules of ctypes
walk_packages(ctypes.__path__, ctypes.__name__+'.')
c S s | |kr dS d|| < d S )NTr )�p�mr r r �seenR s zwalk_packages.<locals>.seenN�__path__c s g | ]}� |�s|�qS r r )�.0r& )r( r r �
<listcomp>i s z!walk_packages.<locals>.<listcomp>�.)
r
�ispkg�
__import__r � ImportError� Exception�getattr�sys�modulesr )�path�prefix�onerror�infor )r( r r 5 s c c sf | dkrt � }n
tt| �}i }xB|D ]:}x4t||�D ]&\}}||kr4d||< t|||�V q4W q$W dS )a Yields ModuleInfo for all submodules on path,
or, if path is None, all top-level modules on sys.path.
'path' should be either None or a list of paths to look for
modules in.
'prefix' is a string to output on the front of every module name
on output.
N� )r �mapr �iter_importer_modulesr )r4 r5 Z importers�yielded�ir r- r r r r
n s
c C s t | d�sg S | j|�S )Nr
)�hasattrr
)�importerr5 r r r r: � s
r: c c s0 | j d kstj j| j � r d S i }dd l}ytj| j �}W n tk
rR g }Y nX |j� x�|D ]�}|j|�}|dksb||kr�qbtj j| j |�}d}| o�tj j|�o�d|k�r|}ytj|�} W n tk
r� g } Y nX x&| D ] }|j|�}
|
dkr�d}P q�W qb|rbd|krbd||< || |fV qbW d S )Nr �__init__Fr, Tr8 ) r4 �os�isdir�inspect�listdir�OSError�sort�
getmodulename�join) r> r5 r; rB � filenames�fn�modnamer4 r- � dircontents�subnamer r r �_iter_file_finder_modules� s<
rM c
C s. t j� � t jdt� tjd�aW d Q R X d S )N�ignore�imp)�warnings�catch_warnings� simplefilter�DeprecationWarningr �
import_modulerO r r r r � _import_imp� s
rU c @ s. e Zd ZdZd
dd�Zd dd�Zd dd �ZdS )
r a PEP 302 Finder that wraps Python's "classic" import algorithm
ImpImporter(dirname) produces a PEP 302 finder that searches that
directory. ImpImporter(None) produces a PEP 302 finder that searches
the current sys.path, plus any modules that are frozen or built-in.
Note that ImpImporter does not currently support being used by placement
on sys.meta_path.
Nc C s t jdt� t� || _d S )Nz5This emulation is deprecated, use 'importlib' instead)rP �warnrS rU r4 )�selfr4 r r r r? � s zImpImporter.__init__c
C s~ |j d�d }||kr$| jd kr$d S | jd kr4d }ntjj| j�g}ytj||�\}}}W n tk
rn d S X t||||�S )Nr, r8 ���)�splitr4 r@ �realpathrO r r/ r
)rW �fullnamer4 rL �file�filename�etcr r r r � s
zImpImporter.find_moduler% c c s0 | j d kstj j| j � r d S i }dd l}ytj| j �}W n tk
rR g }Y nX |j� x�|D ]�}|j|�}|dksb||kr�qbtj j| j |�}d}| o�tj j|�o�d|k�r|}ytj|�} W n tk
r� g } Y nX x&| D ] }|j|�}
|
dkr�d}P q�W qb|rbd|krbd||< || |fV qbW d S )Nr r? Fr, Tr8 ) r4 r@ rA rB rC rD rE rF rG ) rW r5 r; rB rH rI rJ r4 r- rK rL r r r r
� s<
zImpImporter.iter_modules)N)N)r% )�__name__�
__module__� __qualname__�__doc__r? r r
r r r r r � s
c @ sn e Zd ZdZd ZZdd� Zdd� Zdd� Zd d
� Z d d � Z
d
d� Z ddd�Z ddd�Z
dd� Zddd�ZdS )r
zBPEP 302 Loader that wraps Python's "classic" import algorithm
Nc C s. t jdt� t� || _|| _|| _|| _d S )Nz5This emulation is deprecated, use 'importlib' instead)rP rV rS rU r\ r] r[ r^ )rW r[ r\ r] r^ r r r r? s zImpLoader.__init__c C s: | j � ztj|| j| j| j�}W d | jr4| jj� X |S )N)�_reopenrO � load_moduler\ r] r^ �close)rW r[ �modr r r rd s zImpLoader.load_modulec C s t |d��
}|j� S Q R X d S )N�rb)�openr )rW �pathnamer\ r r r r " s zImpLoader.get_datac C sT | j rP| j jrP| jd }|tjkr2t| jd�| _ n |tjtjfkrPt| jd�| _ d S )N� �rrg ) r\ �closedr^ rO � PY_SOURCErh r] � PY_COMPILED� C_EXTENSION)rW �mod_typer r r rc & s
zImpLoader._reopenc C s0 |d kr| j }n || j kr,td| j |f ��|S )Nz,Loader for module %s cannot handle module %s)r[ r/ )rW r[ r r r � _fix_name. s
zImpLoader._fix_namec C s | j |�}| jd tjkS )Nrj )rq r^ rO �
PKG_DIRECTORY)rW r[ r r r �
is_package6 s
zImpLoader.is_packagec
C s� | j |�}| jd kr�| jd }|tjkrD| j|�}t|| jd�| _nJ|tjkrv| j � zt
| j �| _W d | j j � X n|tj
kr�| j� j� | _| jS )Nrj �exec)rq �coder^ rO rm �
get_source�compiler] rn rc r r\ re rr �
_get_delegate�get_code)rW r[ rp �sourcer r r ry : s
zImpLoader.get_codec
C s� | j |�}| jd kr�| jd }|tjkrP| j� z| jj� | _W d | jj� X nd|tj kr�t
j j | j
d d� �r�t| j
d d� d��}|j� | _W d Q R X n|tjkr�| j� j� | _| jS )Nrj r8 rk rX rX )rq rz r^ rO rm rc r\ r re rn r@ r4 �existsr] rh rr rx rv )rW r[ rp �fr r r rv K s
zImpLoader.get_sourcec C s t | j�}t|d�}|jS )Nr? )r r] r r )rW r �specr r r rx ] s
zImpLoader._get_delegatec C sH | j |�}| jd }|tjkr*| j� j� S |tjtjtjfkrD| j S d S )Nrj )
rq r^ rO rr rx � get_filenamerm rn ro r] )rW r[ rp r r r r~ b s
zImpLoader.get_filename)N)N)N)r_ r` ra rb ru rz r? rd r rc rq rs ry rv rx r~ r r r r r
s
)� zipimporterc c s� t tj| j �}| j}t|�}i }dd l}x�|D ]�}|j|�s@q0||d � jt j
�}t|�dkr�|d jd�r�|d |kr�d||d < ||d dfV t|�dkr�q0|j |d �}|dkr�q0|r0d|kr0||kr0d||< || dfV q0W d S ) Nr rj r8 z __init__.pyTr? r, F) �sorted� zipimport�_zip_directory_cache�archiver5 �lenrB �
startswithrY r@ �seprF ) r> r5 Zdirlist�_prefixZplenr; rB rI rJ r r r �iter_zipimport_modulesp s*
r� c C sn yt j| }W nZ tk
rh xDt jD ]6}y || �}t jj| |� P W q& tk
rZ Y q&X q&W d}Y nX |S )z�Retrieve a finder for the given path item
The returned finder is cached in sys.path_importer_cache
if it was newly created by a path hook.
The cache (or part of it) can be cleared manually if a
rescan of sys.path_hooks is necessary.
N)r2 �path_importer_cache�KeyError�
path_hooks�
setdefaultr/ )Z path_itemr> � path_hookr r r r � s
c c s� | j d�r dj| �}t|��d| krV| jd�d }tj|�}t|dd�}|dkrhdS ntjE dH tj }x|D ]}t
|�V qnW dS )a� Yield finders for the given module name
If fullname contains a '.', the finders will be for the package
containing fullname, otherwise they will be all registered top level
finders (i.e. those on both sys.meta_path and sys.path_hooks).
If the named module is in a package, that package is imported as a side
effect of invoking this function.
If no module name is specified, all top level finders are produced.
r, z'Relative module name {!r} not supportedr r) N) r� �formatr/ �
rpartitionr rT r1 r2 � meta_pathr4 r )r[ �msgZpkg_nameZpkgr4 �itemr r r r � s
c C sn | t jkr t j| } | dkr dS t| t�rb| }t|dd�}|dk rF|S t|dd�dkrZdS |j}n| }t|�S )z�Get a "loader" object for module_or_name
Returns None if the module cannot be found or imported.
If the named module is not already imported, its containing package
(if any) is imported, in order to establish the package __path__.
N�
__loader__�__spec__)r2 r3 �
isinstancer r1 r_ r )Zmodule_or_name�moduler r[ r r r r � s
c C s� | j d�r dj| �}t|��ytjj| �}W nF ttttfk
rr } z"d}t|j| t |�|��|�W Y dd}~X nX |dk r�|j
S dS )z�Find a "loader" object for fullname
This is a backwards compatibility wrapper around
importlib.util.find_spec that converts most failures to ImportError
and only returns the loader rather than the full spec
r, z'Relative module name {!r} not supportedz,Error while finding loader for {!r} ({}: {})N) r� r� r/ r r r r � TypeError�
ValueError�typer )r[ r� r} Zexr r r r � s
*c C s� t | t�s| S |d }| dd� } |jd�\}}}|rbytj| j}W qh ttfk
r^ | S X ntj}�x:|D �]0}t |t �s�qpt
|�}|dk r�g } t |d�r�|j |�}
|
dk r�|
j
p�g } nt |d�r�|j|�\}} x | D ]} | | kr�| j| � q�W tjj||�} tjj| �rpy t| �}
W n8 tk
�rT } ztjjd| |f � W Y dd}~X qpX |
�B x:|
D ]2}|jd�}| �sb|jd��r��qb| j|� �qbW W dQ R X qpW | S ) a� Extend a package's path.
Intended use is to place the following code in a package's __init__.py:
from pkgutil import extend_path
__path__ = extend_path(__path__, __name__)
This will add to the package's __path__ all subdirectories of
directories on sys.path named after the package. This is useful
if one wants to distribute different parts of a single logical
package as multiple directories.
It also looks for *.pkg files beginning where * matches the name
argument. This feature is similar to *.pth files (see site.py),
except that it doesn't special-case lines starting with 'import'.
A *.pkg file is trusted at face value: apart from checking for
duplicates, all entries found in a *.pkg file are added to the
path, regardless of whether they are exist the filesystem. (This
is a feature.)
If the input path is not a list (as is the case for frozen
packages) it is returned unchanged. The input path is not
modified; an extended copy is returned. Items are only appended
to the copy at the end.
It is assumed that sys.path is a sequence. Items of sys.path that
are not (unicode or 8-bit) strings referring to existing
directories are ignored. Unicode items of sys.path that cause
errors when used as filenames may cause this function to raise an
exception (in line with os.path.isdir() behavior).
z.pkgNr, r r zCan't open %s: %s
�
�#)r� �listr� r2 r3 r) r� r r4 �strr r= r �submodule_search_locationsr �appendr@ rG �isfilerh rD �stderr�write�rstripr� )r4 r Z sname_pkgZparent_package�_Z
final_nameZ search_path�dirr �portionsr} ZportionZpkgfiler| r� �liner r r r � sP !
c C s� t jj| �}|dkrdS |j}|dks2t|d� r6dS tjj| �pLt jj |�}|dksbt|d� rfdS |j
d�}|j dt j
j|j�� t j
j|� }|j|�S )af Get a resource from a package.
This is a wrapper round the PEP 302 loader get_data API. The package
argument should be the name of a package, in standard module format
(foo.bar). The resource argument should be in the form of a relative
filename, using '/' as the path separator. The parent directory name '..'
is not allowed, and nor is a rooted name (starting with a '/').
The function returns a binary string, which is the contents of the
specified resource.
For packages located in the filesystem, which have already been imported,
this is the rough equivalent of
d = os.path.dirname(sys.modules[package].__file__)
data = open(os.path.join(d, resource), 'rb').read()
If the package cannot be located or loaded, or it uses a PEP 302 loader
which does not support get_data(), then None is returned.
Nr �__file__�/r )r r r r r= r2 r3 �get�
_bootstrap�_loadrY �insertr@ r4 �dirnamer� rG r )�packageZresourcer} r rf �partsZ
resource_namer r r r R s
)Nr% N)Nr% )r% )r% )r% )r% )'rb � collectionsr � functoolsr Z
simplegenericr �importlib.util�importlib.machineryr@ Zos.pathr2 �typesr rP �__all__r r r r r
r: rM �register� machinery�
FileFinderrU r r
r� r r� r/ r r r r r r r r r r �<module> sR
9
( Jc
^
Mini Shell