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��Yfe� � @ s( d Z dc Z dd Z e e 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 d d � Z e e j � Z d j d d � d Z e j e d � Z e d k r� d Z e e � � d j d d � d Z d Z d! Z d" g Z d# g Z e Z Z d$ d% d$ d& d' �Z d( d) � Z d* d+ � Z! d, d- � Z" d. d/ � Z# d0 d1 d2 d3 � Z$ d4 d5 � Z% d6 d7 � Z& d$ d$ d$ d8 d9 � Z' d$ d$ d$ d: d; � Z( d< d< d= d> � Z) d? d@ � Z* e+ � Z, d$ dA d$ dB e, dC dD �Z- GdE dF � dF � Z. GdG dH � dH � Z/ GdI dJ � dJ e/ � Z0 GdK dL � dL � Z1 GdM dN � dN e1 e0 � Z2 GdO dP � dP e1 e/ � Z3 g Z4 GdQ dR � dR e1 e/ � Z5 GdS dT � dT � Z6 GdU dV � dV � Z7 GdW dX � dX � Z8 GdY dZ � dZ � Z9 d$ d[ d\ � Z: d] d^ � Z; d_ d` � Z< da db � Z= d$ S)ea^ Core implementation of path-based import. This module is NOT meant to be directly imported! It has been designed such that it can be bootstrapped into Python as the implementation of import. As such it requires the injection of specific modules and attributes in order to work. One should use importlib as the public-facing version of this module. �win�cygwin�darwinc sX t j j t � rH t j j t � r- d � n d � � f d d � } n d d � } | S)N� PYTHONCASEOKs PYTHONCASEOKc s � t j k S)z5True if filenames must be checked case-insensitively.)�_os�environ� )�keyr �B/opt/alt/python35/lib64/python3.5/importlib/_bootstrap_external.py� _relax_case% s z%_make_relax_case.<locals>._relax_casec S s d S)z5True if filenames must be checked case-insensitively.Fr r r r r r ) s )�sys�platform� startswith�_CASE_INSENSITIVE_PLATFORMS�#_CASE_INSENSITIVE_PLATFORMS_STR_KEY)r r )r r �_make_relax_case s r c C s t | � d @j d d � S)z*Convert a 32-bit integer to little-endian.l �� � �little)�int�to_bytes)�xr r r �_w_long/ s r c C s t j | d � S)z/Convert 4 bytes in little-endian to an integer.r )r � from_bytes)� int_bytesr r r �_r_long4 s r c G s t j d d � | D� � S)z Replacement for os.path.join().c S s% g | ] } | r | j t � � q Sr )�rstrip�path_separators)�.0�partr r r � <listcomp>; s z _path_join.<locals>.<listcomp>)�path_sep�join)� path_partsr r r � _path_join9 s r" c C s� t t � d k r4 | j t � \ } } } | | f SxE t | � D]7 } | t k rA | j | d d �\ } } | | f SqA Wd | f S)z Replacement for os.path.split().� �maxsplit� )�lenr � rpartitionr �reversed�rsplit)�path�front�_�tailr r r r � _path_split? s r. c C s t j | � S)z~Stat the path. Made a separate function to make it easier to override in experiments (e.g. cache stat results). )r �stat)r* r r r � _path_statK s r0 c C s: y t | � } Wn t k r( d SYn X| j d @| k S)z1Test whether the path is the specified mode type.Fi � )r0 �OSError�st_mode)r* �mode� stat_infor r r �_path_is_mode_typeU s r5 c C s t | d � S)z Replacement for os.path.isfile.i � )r5 )r* r r r � _path_isfile^ s r6 c C s | s t j � } t | d � S)z Replacement for os.path.isdir.i @ )r �getcwdr5 )r* r r r � _path_isdirc s r8 i� c C s� d j | t | � � } t j | t j t j Bt j B| d @� } y= t j | d � � } | j | � Wd QRXt j | | � Wn; t k r� y t j | � Wn t k r� Yn X� Yn Xd S)z�Best-effort function to write data to a path atomically. Be prepared to handle a FileExistsError if concurrent writing of the temporary file is attempted.z{}.{}i� �wbN) �format�idr �open�O_EXCL�O_CREAT�O_WRONLY�_io�FileIO�write�replacer1 �unlink)r* �datar3 �path_tmp�fd�filer r r � _write_atomicj s ! rI i � r s i zAMagic number mismatch (the issue27286 workaround is for 3.5 only)i � __pycache__zopt-z.pyz.pycN� optimizationc C sW | d k rL t j d t � | d k r: d } t | � � | rF d n d } t | � \ } } | j d � \ } } } t j j } | d k r� t d � � d j | r� | n | | | g � } | d k r� t j j d k r� d } n t j j } t | � } | d k r?| j � s*t d j | � � � d j | t | � } t | t | t d � S) a� Given the path to a .py file, return the path to its .pyc file. The .py file does not need to exist; this simply returns the path to the .pyc file calculated as if the .py file were imported. The 'optimization' parameter controls the presumed optimization level of the bytecode file. If 'optimization' is not None, the string representation of the argument is taken and verified to be alphanumeric (else ValueError is raised). The debug_override parameter is deprecated. If debug_override is not None, a True value is the same as setting 'optimization' to the empty string while a False value is equivalent to setting 'optimization' to '1'. If sys.implementation.cache_tag is None then NotImplementedError is raised. NzFthe debug_override parameter is deprecated; use 'optimization' insteadz2debug_override or optimization must be set to Noner% r# �.z$sys.implementation.cache_tag is None� z{!r} is not alphanumericz{}.{}{})� _warnings�warn�DeprecationWarning� TypeErrorr. r' r �implementation� cache_tag�NotImplementedErrorr �flags�optimize�str�isalnum� ValueErrorr: �_OPTr" �_PYCACHE�BYTECODE_SUFFIXES) r* �debug_overriderL �message�headr- �base�sep�rest�tag�almost_filenamer r r �cache_from_source s. $ rf c C s> t j j d k r t d � � t | � \ } } t | � \ } } | t k rf t d j t | � � � | j d � } | d k r� t d j | � � � n} | d k r| j d d � d } | j t � s� t d j t � � � | t t � d � } | j � st d j | � � � | j d � d } t | | t d � S) an Given the path to a .pyc. file, return the path to its .py file. The .pyc file does not need to exist; this simply returns the path to the .py file calculated to correspond to the .pyc file. If path does not conform to PEP 3147/488 format, ValueError will be raised. If sys.implementation.cache_tag is None then NotImplementedError is raised. Nz$sys.implementation.cache_tag is Nonez%{} not bottom-level directory in {!r}rM rJ � z!expected only 2 or 3 dots in {!r}z9optimization portion of filename does not start with {!r}z4optimization level {!r} is not an alphanumeric valuerN > rJ rg ���)r rS rT rU r. r\ rZ r: �countr) r r[ r& rY � partitionr" �SOURCE_SUFFIXES)r* r` �pycache_filename�pycache� dot_countrL � opt_level� base_filenamer r r �source_from_cache@ s, rq c C s� t | � d k r d S| j d � \ } } } | sQ | j � d d � d k rU | Sy t | � } Wn( t t f k r� | d d � } Yn Xt | � r� | S| S) z�Convert a bytecode file path to a source path (if possible). This function exists purely for backwards-compatibility for PyImport_ExecCodeModuleWithFilenames() in the C API. rN NrM rg r# �py������rt )r& r' �lowerrq rU rZ r6 )� bytecode_pathrc r, � extension� source_pathr r r �_get_sourcefilea s #ry c C s\ | j t t � � r; y t | � SWqX t k r7 YqX Xn | j t t � � rT | Sd Sd S)N)�endswith�tuplerk rf rU r] )�filenamer r r � _get_cachedt s r} c C s< y t | � j } Wn t k r- d } Yn X| d O} | S)z3Calculate the mode permissions for a bytecode file.i� � )r0 r2 r1 )r* r3 r r r � _calc_mode� s r � verbosityr# c G sK t j j | k rG | j d � s+ d | } t | j | � d t j �d S)z=Print the message to stderr if -v/PYTHONVERBOSE is turned on.�#�import z# rH N)r� r� )r rV �verboser �printr: �stderr)r_ r� �argsr r r �_verbose_message� s r� c sT d � f d d � } y t j } Wn t k rB d d � } Yn X| | � � | S)z�Decorator to verify that the module being requested matches the one the loader can handle. The first argument (self) must define _name which the second argument is compared against. If the comparison fails then ImportError is raised. Nc sY | d k r | j } n. | j | k rF t d | j | f d | �� � | | | | � S)Nz loader for %s cannot handle %s�name)r� � ImportError)�selfr� r� �kwargs)�methodr r �_check_name_wrapper� s z(_check_name.<locals>._check_name_wrapperc S s\ xB d d d d g D]. } t | | � r t | | t | | � � q W| j j | j � d S)N� __module__�__name__� __qualname__�__doc__)�hasattr�setattr�getattr�__dict__�update)�new�oldrC r r r �_wrap� s z_check_name.<locals>._wrap)� _bootstrapr� � NameError)r� r� r� r )r� r � _check_name� s r� c C sT | j | � \ } } | d k rP t | � rP d } t j | j | d � t � | S)z�Try to find a loader for the specified module by delegating to self.find_loader(). This method is deprecated in favor of finder.find_spec(). Nz,Not importing directory {}: missing __init__rN )� find_loaderr& rO rP r: � ImportWarning)r� �fullname�loader�portions�msgr r r �_find_module_shim� s r� c C s� i } | d k r | | d <n d } | d k r; | | d <| d d � } | d d � } | d d � } | t k r� | t k r� d j | | � } t d | � t | | � � nw t | � d k r� d j | � } t d | � t | � � n: t | � d k r+d j | � } t d | � t | � � | d k r�y t | d � } Wn t k r_Yn> Xt | � | k r�d j | � } t d | � t | | � � y | d d @} Wn t k r�Yn+ Xt | � | k r�t d j | � | � � | d d � S)az Validate the header of the passed-in bytecode against source_stats (if given) and returning the bytecode that can be compiled by compile(). All other arguments are used to enhance error reporting. ImportError is raised when the magic number is incorrect or the bytecode is found to be stale. EOFError is raised when the data is found to be truncated. Nr� z <bytecode>r* r � � z bad magic number in {!r}: {!r}z{}z+reached EOF while reading timestamp in {!r}z0reached EOF while reading size of source in {!r}�mtimezbytecode is stale for {!r}�sizel �� ) � MAGIC_NUMBER�_BACKCOMPAT_MAGIC_NUMBERr: r� r� r& �EOFErrorr �KeyErrorr ) rE � source_statsr� r* � exc_details�magic� raw_timestamp�raw_sizer_ � source_mtime� source_sizer r r �_validate_bytecode_header� sN r� c C sp t j | � } t | t � rK t d | � | d k rG t j | | � | St d j | � d | d | �� d S)z<Compile bytecode as returned by _validate_bytecode_header().zcode object from {!r}NzNon-code object in {!r}r� r* ) �marshal�loads� isinstance� _code_typer� �_imp�_fix_co_filenamer� r: )rE r� rv rx �coder r r �_compile_bytecode� s r� rN c C sL t t � } | j t | � � | j t | � � | j t j | � � | S)zPCompile a code object into bytecode for writing out to a byte-compiled file.)� bytearrayr� �extendr r� �dumps)r� r� r� rE r r r �_code_to_bytecode s r� c C sY d d l } t j | � j } | j | � } t j d d � } | j | j | d � � S)zyDecode bytes representing source code and return the string. Universal newline support is used in the decoding. rN NT)�tokenizer@ �BytesIO�readline�detect_encoding�IncrementalNewlineDecoder�decode)� source_bytesr� �source_bytes_readline�encoding�newline_decoderr r r � decode_source s r� r� �submodule_search_locationsc C sY | d k rI d } t | d � rI y | j | � } Wn t k rH Yn Xt j | | d | �} d | _ | d k r� xI t � D]: \ } } | j t | � � r� | | | � } | | _ Pq� Wd S| t k rt | d � r y | j | � } Wn t k rYq X| r g | _ n | | _ | j g k rU| rUt | � d } | j j | � | S)a= Return a module spec based on a file location. To indicate that the module is a package, set submodule_search_locations to a list of directory paths. An empty list is sufficient, though its not otherwise useful to the import system. The loader must take a spec as its only __init__() arg. Nz <unknown>� get_filename�originT� is_packagerN )r� r� r� r� � ModuleSpec� _set_fileattr�_get_supported_file_loadersrz r{ r� � _POPULATEr� r� r. �append) r� �locationr� r� �spec� loader_class�suffixesr� �dirnamer r r �spec_from_file_location! s< r� c @ sy e Z d Z d Z d Z d Z d Z e d d � � Z e d d � � Z e d d d d � � Z e d d d � � Z d S)�WindowsRegistryFinderz>Meta path finder for modules declared in the Windows registry.z;Software\Python\PythonCore\{sys_version}\Modules\{fullname}zASoftware\Python\PythonCore\{sys_version}\Modules\{fullname}\DebugFc C sC y t j t j | � SWn% t k r> t j t j | � SYn Xd S)N)�_winreg�OpenKey�HKEY_CURRENT_USERr1 �HKEY_LOCAL_MACHINE)�clsr r r r �_open_registryo s z$WindowsRegistryFinder._open_registryc C s� | j r | j } n | j } | j d | d t j d d � � } y/ | j | � � } t j | d � } Wd QRXWn t k r� d SYn X| S)Nr� � sys_versionrg r% ) � DEBUG_BUILD�REGISTRY_KEY_DEBUG� REGISTRY_KEYr: r �versionr� r� � QueryValuer1 )r� r� � registry_keyr �hkey�filepathr r r �_search_registryv s z&WindowsRegistryFinder._search_registryNc C s� | j | � } | d k r d Sy t | � Wn t k rE d SYn XxQ t � D]F \ } } | j t | � � rP t j | | | | � d | �} | SqP Wd S)Nr� )r� r0 r1 r� rz r{ r� �spec_from_loader)r� r� r* �targetr� r� r� r� r r r � find_spec� s z WindowsRegistryFinder.find_specc C s- | j | | � } | d k r% | j Sd Sd S)zlFind module named in the registry. This method is deprecated. Use exec_module() instead. N)r� r� )r� r� r* r� r r r � find_module� s z!WindowsRegistryFinder.find_module) r� r� r� r� r� r� r� � classmethodr� r� r� r� r r r r r� c s r� c @ sF e Z d Z d Z d d � Z d d � Z d d � Z d d � Z d S) � _LoaderBasicszSBase class of common code needed by both SourceLoader and SourcelessFileLoader.c C sX t | j | � � d } | j d d � d } | j d � d } | d k oW | d k S)z�Concrete implementation of InspectLoader.is_package by checking if the path returned by get_filename has a filename of '__init__.py'.r# rM rN rJ �__init__)r. r� r) r' )r� r� r| � filename_base� tail_namer r r r� � s z_LoaderBasics.is_packagec C s d S)z*Use default semantics for module creation.Nr )r� r� r r r � create_module� s z_LoaderBasics.create_modulec C sP | j | j � } | d k r6 t d j | j � � � t j t | | j � d S)zExecute the module.Nz4cannot load module {!r} when get_code() returns None)�get_coder� r� r: r� �_call_with_frames_removed�execr� )r� �moduler� r r r � exec_module� s z_LoaderBasics.exec_modulec C s t j | | � S)N)r� �_load_module_shim)r� r� r r r � load_module� s z_LoaderBasics.load_moduleN)r� r� r� r� r� r� r� r� r r r r r� � s r� c @ sj e Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d d d � Z d d � Z d S)� SourceLoaderc C s t � d S)z�Optional method that returns the modification time (an int) for the specified path, where path is a str. Raises IOError when the path cannot be handled. N)�IOError)r� r* r r r � path_mtime� s zSourceLoader.path_mtimec C s d | j | � i S)a� Optional method returning a metadata dict for the specified path to by the path (str). Possible keys: - 'mtime' (mandatory) is the numeric timestamp of last source code modification; - 'size' (optional) is the size in bytes of the source code. Implementing this method allows the loader to read bytecode files. Raises IOError when the path cannot be handled. r� )r� )r� r* r r r � path_stats� s zSourceLoader.path_statsc C s | j | | � S)z�Optional method which writes data (bytes) to a file path (a str). Implementing this method allows for the writing of bytecode files. The source path is needed in order to correctly transfer permissions )�set_data)r� rx � cache_pathrE r r r �_cache_bytecode� s z SourceLoader._cache_bytecodec C s d S)z�Optional method which writes data (bytes) to a file path (a str). Implementing this method allows for the writing of bytecode files. Nr )r� r* rE r r r r � s zSourceLoader.set_datac C si | j | � } y | j | � } Wn: t k r^ } z t d d | �| � WYd d } ~ Xn Xt | � S)z4Concrete implementation of InspectLoader.get_source.z'source not available through get_data()r� N)r� �get_datar1 r� r� )r� r� r* r� �excr r r � get_source� s zSourceLoader.get_source� _optimizer# c C s" t j t | | d d d d | �S)z�Return the code object compiled from source. The 'data' argument can be any object type that compile() supports. r� � dont_inheritTrW )r� r� �compile)r� rE r* r r r r �source_to_code� s zSourceLoader.source_to_codec + C s� | j | � } d } y t | � } Wn t k r? d } Yn� Xy | j | � } Wn t k rg Yn� Xt | d � } y | j | � } Wn t k r� Ynj Xy" t | d | d | d | �} Wn t t f k r� Yn- Xt d | | � t | d | d | d | �S| j | � } | j | | � } t d | � t j r�| d k r�| d k r�t | | t | � � } y$ | j | | | � t d | � Wn t k r�Yn X| S) z�Concrete implementation of InspectLoader.get_code. Reading of bytecode requires path_stats to be implemented. To write bytecode, set_data must also be implemented. Nr� r� r� r* z {} matches {}rv rx zcode object from {}z wrote {!r})r� rf rU r� r� r r r1 r� r� r� r� r� r r �dont_write_bytecoder� r& r ) r� r� rx r� rv �strE � bytes_datar� � code_objectr r r r� � sN zSourceLoader.get_codeNrt ) r� r� r� r� r� r r r r r� r r r r r� � s r� c sp e Z d Z d Z d d � Z d d � Z d d � Z e � f d d � � Z e d d � � Z d d � Z � S)� FileLoaderzgBase file loader class which implements the loader protocol methods that require file system usage.c C s | | _ | | _ d S)zKCache the module name and the path to the file found by the finder.N)r� r* )r� r� r* r r r r� 2 s zFileLoader.__init__c C s" | j | j k o! | j | j k S)N)� __class__r� )r� �otherr r r �__eq__8 s zFileLoader.__eq__c C s t | j � t | j � AS)N)�hashr� r* )r� r r r �__hash__< s zFileLoader.__hash__c s t t | � j | � S)zdLoad a module from a file. This method is deprecated. Use exec_module() instead. )�superr r� )r� r� )r r r r� ? s zFileLoader.load_modulec C s | j S)z:Return the path to the source file as found by the finder.)r* )r� r� r r r r� K s zFileLoader.get_filenamec C s* t j | d � � } | j � SWd QRXd S)z'Return the data from path as raw bytes.�rN)r@ rA �read)r� r* rH r r r r P s zFileLoader.get_data) r� r� r� r� r� r r r� r� r� r r r )r r r - s r c @ s@ e Z d Z d Z d d � Z d d � Z d d d d � Z d S) �SourceFileLoaderz>Concrete implementation of SourceLoader using the file system.c C s" t | � } d | j d | j i S)z!Return the metadata for the path.r� r� )r0 �st_mtime�st_size)r� r* r r r r r� Z s zSourceFileLoader.path_statsc C s" t | � } | j | | d | �S)N�_mode)r r )r� rx rv rE r3 r r r r _ s z SourceFileLoader._cache_bytecoder i� c C s5 t | � \ } } g } x6 | rP t | � rP t | � \ } } | j | � q Wx� t | � D]v } t | | � } y t j | � Wq^ t k r� w^ Yq^ t k r� } z t d | | � d SWYd d } ~ Xq^ Xq^ Wy! t | | | � t d | � Wn5 t k r0} z t d | | � WYd d } ~ Xn Xd S)zWrite bytes data to a file.zcould not create {!r}: {!r}Nz created {!r}) r. r8 r� r( r" r �mkdir�FileExistsErrorr1 r� rI ) r� r* rE r �parentr| r! r r r r r r d s& zSourceFileLoader.set_dataN)r� r� r� r� r� r r r r r r r V s r c @ s. e Z d Z d Z d d � Z d d � Z d S)�SourcelessFileLoaderz-Loader which handles sourceless file imports.c C sL | j | � } | j | � } t | d | d | �} t | d | d | �S)Nr� r* rv )r� r r� r� )r� r� r* rE r r r r r� � s z SourcelessFileLoader.get_codec C s d S)z'Return None as there is no source code.Nr )r� r� r r r r � s z SourcelessFileLoader.get_sourceN)r� r� r� r� r� r r r r r r � s r c @ s� e Z d Z 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 d d � � Z d S)�ExtensionFileLoaderz]Loader for extension modules. The constructor is designed to work with FileFinder. c C s | | _ | | _ d S)N)r� r* )r� r� r* r r r r� � s z ExtensionFileLoader.__init__c C s" | j | j k o! | j | j k S)N)r r� )r� r r r r r � s zExtensionFileLoader.__eq__c C s t | j � t | j � AS)N)r r� r* )r� r r r r � s z ExtensionFileLoader.__hash__c C s/ t j t j | � } t d | j | j � | S)z&Create an unitialized extension modulez&extension module {!r} loaded from {!r})r� r� r� �create_dynamicr� r� r* )r� r� r� r r r r� � s z!ExtensionFileLoader.create_modulec C s- t j t j | � t d | j | j � d S)z Initialize an extension modulez(extension module {!r} executed from {!r}N)r� r� r� � exec_dynamicr� r� r* )r� r� r r r r� � s z ExtensionFileLoader.exec_modulec s0 t | j � d � t � f d d � t D� � S)z1Return True if the extension module is a package.r# c 3 s | ] } � d | k Vq d S)r� Nr )r �suffix)� file_namer r � <genexpr>� s z1ExtensionFileLoader.is_package.<locals>.<genexpr>)r. r* �any�EXTENSION_SUFFIXES)r� r� r )r# r r� � s z ExtensionFileLoader.is_packagec C s d S)z?Return None as an extension module cannot create a code object.Nr )r� r� r r r r� � s z ExtensionFileLoader.get_codec C s d S)z5Return None as extension modules have no source code.Nr )r� r� r r r r � s z ExtensionFileLoader.get_sourcec C s | j S)z:Return the path to the source file as found by the finder.)r* )r� r� r r r r� � s z ExtensionFileLoader.get_filenameN)r� r� r� r� r� r r r� r� r� r� r r� r� r r r r r � s r c @ s� e Z d Z 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)�_NamespacePatha& Represents a namespace package's path. It uses the module name to find its parent module, and from there it looks up the parent's __path__. When this changes, the module's own path is recomputed, using path_finder. For top-level modules, the parent module's path is sys.path.c C s4 | | _ | | _ t | j � � | _ | | _ d S)N)�_name�_pathr{ �_get_parent_path�_last_parent_path� _path_finder)r� r� r* � path_finderr r r r� � s z_NamespacePath.__init__c C s5 | j j d � \ } } } | d k r+ d S| d f S)z>Returns a tuple of (parent-module-name, parent-path-attr-name)rM r% r r* �__path__)r r* )r( r' )r� r �dot�mer r r �_find_parent_path_names� s z&_NamespacePath._find_parent_path_namesc C s& | j � \ } } t t j | | � S)N)r1 r� r �modules)r� �parent_module_name�path_attr_namer r r r* � s z _NamespacePath._get_parent_pathc C sv t | j � � } | | j k ro | j | j | � } | d k rf | j d k rf | j rf | j | _ | | _ | j S)N)r{ r* r+ r, r( r� r� r) )r� � parent_pathr� r r r � _recalculate� s z_NamespacePath._recalculatec C s t | j � � S)N)�iterr6 )r� r r r �__iter__� s z_NamespacePath.__iter__c C s t | j � � S)N)r& r6 )r� r r r �__len__� s z_NamespacePath.__len__c C s d j | j � S)Nz_NamespacePath({!r}))r: r) )r� r r r �__repr__� s z_NamespacePath.__repr__c C s | | j � k S)N)r6 )r� �itemr r r � __contains__� s z_NamespacePath.__contains__c C s | j j | � d S)N)r) r� )r� r; r r r r� � s z_NamespacePath.appendN) r� r� r� r� r� r1 r* r6 r8 r9 r: r< r� r r r r r' � s r' c @ sv e Z 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 S)�_NamespaceLoaderc C s t | | | � | _ d S)N)r' r) )r� r� r* r- r r r r� s z_NamespaceLoader.__init__c C s d j | j � S)zsReturn repr for the module. The method is deprecated. The import machinery does the job itself. z<module {!r} (namespace)>)r: r� )r� r� r r r � module_repr s z _NamespaceLoader.module_reprc C s d S)NTr )r� r� r r r r� s z_NamespaceLoader.is_packagec C s d S)Nr% r )r� r� r r r r s z_NamespaceLoader.get_sourcec C s t d d d d d �S)Nr% z<string>r� r T)r )r� r� r r r r� s z_NamespaceLoader.get_codec C s d S)z*Use default semantics for module creation.Nr )r� r� r r r r� s z _NamespaceLoader.create_modulec C s d S)Nr )r� r� r r r r� s z _NamespaceLoader.exec_modulec C s t d | j � t j | | � S)zbLoad a namespace module. This method is deprecated. Use exec_module() instead. z&namespace module loaded with path {!r})r� r) r� r� )r� r� r r r r� s z _NamespaceLoader.load_moduleN) r� r� r� r� r� r> r� r r� r� r� r� r r r r r= s r= c @ s� e Z d Z d Z e d d � � Z e d d � � Z e d d � � Z e d d � � Z e d d d � � Z e d d d d � � Z e d d d � � Z d S)� PathFinderz>Meta path finder for sys.path and package __path__ attributes.c C s7 x0 t j j � D] } t | d � r | j � q Wd S)z}Call the invalidate_caches() method on all path entry finders stored in sys.path_importer_caches (where implemented).�invalidate_cachesN)r �path_importer_cache�valuesr� r@ )r� �finderr r r r@ / s z PathFinder.invalidate_cachesc C sk t j d k r) t j r) t j d t � x; t j D], } y | | � SWq3 t k r^ w3 Yq3 Xq3 Wd Sd S)zqSearch sequence of hooks for a finder for 'path'. If 'hooks' is false then use sys.path_hooks. Nzsys.path_hooks is empty)r � path_hooksrO rP r� r� )r� r* �hookr r r � _path_hooks7 s zPathFinder._path_hooksc C s{ | d k r5 y t j � } Wn t k r4 d SYn Xy t j | } Wn. t k rv | j | � } | t j | <Yn X| S)z�Get the finder for the path entry from sys.path_importer_cache. If the path entry is not in the cache, find the appropriate finder and cache it. If no finder is available, store None. r% N)r r7 �FileNotFoundErrorr rA r� rF )r� r* rC r r r �_path_importer_cacheH s z PathFinder._path_importer_cachec C sw t | d � r' | j | � \ } } n | j | � } g } | d k rX t j | | � St j | d � } | | _ | S)Nr� )r� r� r� r� r� r� r� )r� r� rC r� r� r� r r r �_legacy_get_spec^ s zPathFinder._legacy_get_specNc C s� g } x� | D]� } t | t t f � s+ q | j | � } | d k r t | d � rj | j | | � } n | j | | � } | d k r� q | j d k r� | S| j } | d k r� t d � � | j | � q Wt j | d � } | | _ | Sd S)z?Find the loader or namespace_path for this module/package name.Nr� zspec missing loader) r� rX �bytesrH r� r� rI r� r� r� r� r� r� ) r� r� r* r� �namespace_path�entryrC r� r� r r r � _get_specm s( zPathFinder._get_specc C s� | d k r t j } | j | | | � } | d k r: d S| j d k r� | j } | r} d | _ t | | | j � | _ | Sd Sn | Sd S)zbfind the module on sys.path or 'path' based on sys.path_hooks and sys.path_importer_cache.N� namespace)r r* rM r� r� r� r' )r� r� r* r� r� rK r r r r� � s zPathFinder.find_specc C s) | j | | � } | d k r" d S| j S)z�find the module on sys.path or 'path' based on sys.path_hooks and sys.path_importer_cache. This method is deprecated. Use find_spec() instead. N)r� r� )r� r� r* r� r r r r� � s zPathFinder.find_module) r� r� r� r� r� r@ rF rH rI rM r� r� r r r r r? + s r? c @ s� e Z d Z d Z d d � Z d d � Z e Z d d � Z d d � Z d d d � Z d d � Z e d d � � Z d d � Z d S)� FileFinderz�File-based finder. Interactions with the file system are cached for performance, being refreshed when the directory the finder is handling has been modified. c sz g } x4 | D], \ � } | j � f d d � | D� � q W| | _ | pO d | _ d | _ t � | _ t � | _ d S)z�Initialize with the path to search on and a variable number of 2-tuples containing the loader and the file suffixes the loader recognizes.c 3 s | ] } | � f Vq d S)Nr )r r" )r� r r r$ � s z&FileFinder.__init__.<locals>.<genexpr>rM r# Nrt )r� �_loadersr* � _path_mtime�set� _path_cache�_relaxed_path_cache)r� r* �loader_details�loadersr� r )r� r r� � s $ zFileFinder.__init__c C s d | _ d S)z Invalidate the directory mtime.r# Nrt )rQ )r� r r r r@ � s z FileFinder.invalidate_cachesc C s; | j | � } | d k r% d g f S| j | j p7 g f S)z�Try to find a loader for the specified module, or the namespace package portions. Returns (loader, list-of-portions). This method is deprecated. Use find_spec() instead. N)r� r� r� )r� r� r� r r r r� � s zFileFinder.find_loaderc C s( | | | � } t | | d | d | �S)Nr� r� )r� )r� r� r� r* �smslr� r� r r r rM � s zFileFinder._get_specNc C s� d } | j d � d } y" t | j p1 t j � � j } Wn t k rU d } Yn X| | j k rx | j � | | _ t � r� | j } | j � } n | j } | } | | k r-t | j | � } xd | j D]M \ } } d | } t | | � } t | � r� | j | | | | g | � Sq� Wt | � } x{ | j D]p \ } } t | j | | � } t d j | � d d �| | | k r7t | � r7| j | | | d | � Sq7W| r�t d j | � � t j | d � } | g | _ | Sd S) zfTry to find a spec for the specified module. Returns the matching spec, or None if not found.FrM rJ r# r� z trying {}r� Nzpossible namespace for {}rt )r' r0 r* r r7 r r1 rQ � _fill_cacher rT ru rS r" rP r6 rM r8 r� r: r� r� r� )r� r� r� � is_namespace� tail_moduler� �cache� cache_module� base_pathr" r� � init_filename� full_pathr� r r r r� � sD " zFileFinder.find_specc C s | j } y t j | p! t j � � } Wn! t t t f k rK g } Yn Xt j j d � sp t | � | _ no t � } xZ | D]R } | j d � \ } } } | r� d j | | j � � } n | } | j | � q� W| | _ t j j t � rd d � | D� | _ d S)zDFill the cache of potential modules and packages for this directory.r rM z{}.{}c S s h | ] } | j � � q Sr )ru )r �fnr r r � <setcomp>) s z)FileFinder._fill_cache.<locals>.<setcomp>N)r* r �listdirr7 rG �PermissionError�NotADirectoryErrorr r r rR rS rj r: ru �addr rT ) r� r* �contents�lower_suffix_contentsr; r� r/ r" �new_namer r r rX s" zFileFinder._fill_cachec s � � f d d � } | S)a A class method which returns a closure to use on sys.path_hook which will return an instance using the specified loaders and the path called on the closure. If the path called on the closure is not a directory, ImportError is raised. c s+ t | � s t d d | �� � | � � S)z-Path hook for importlib.machinery.FileFinder.z only directories are supportedr* )r8 r� )r* )r� rU r r �path_hook_for_FileFinder5 s z6FileFinder.path_hook.<locals>.path_hook_for_FileFinderr )r� rU ri r )r� rU r � path_hook+ s zFileFinder.path_hookc C s d j | j � S)NzFileFinder({!r}))r: r* )r� r r r r: = s zFileFinder.__repr__)r� r� r� r� r� r@ r� r� r� rM r� rX r� rj r: r r r r rO � s - rO c C s� | j d � } | j d � } | sc | r6 | j } n- | | k rT t | | � } n t | | � } | s~ t | | d | �} y, | | d <| | d <| | d <| | d <Wn t k r� Yn Xd S)N� __loader__�__spec__r� �__file__� __cached__)�getr� r r r� � Exception)�nsr� �pathname� cpathnamer� r� r r r �_fix_up_moduleC s" rt c C s7 t t j � f } t t f } t t f } | | | g S)z_Returns a list of file-based module loaders. Each item is a tuple (loader, suffixes). )r r� �extension_suffixesr rk r r] )� extensions�source�bytecoder r r r� Z s r� c C sF | a t j a t j a t j t } xL d D]D } | t j k rS t j | � } n t j | } t | | | � q, Wd d g f d d d g f f } x� | D]� \ } } t d d � | D� � s� t � | d } | t j k r� t j | } Pq� y t j | � } PWq� t k r w� Yq� Xq� Wt d � � t | d | � t | d | � t | d d j | � � y t j d � } Wn t k r�d } Yn Xt | d | � t j d � } t | d | � | d k r�t j d � } t | d | � t | d t � � t j t j � � | d k rBt j d � d t k rBd t _ d S)z�Setup the path-based importers for importlib by importing needed built-in modules and injecting them into the global namespace. Other components are extracted from the core bootstrap module. r@ rO �builtinsr� �posix�/�nt�\c s s! | ] } t | � d k Vq d S)r# N)r& )r rb r r r r$ ~ s z_setup.<locals>.<genexpr>rN z importlib requires posix or ntr r r r% �_threadN�_weakref�winregr� r z.pywz_d.pydT)r@ rO ry r� )r� r r� r2 r� �_builtin_from_namer� �all�AssertionErrorr� r r r& r� ru rk r� r� r� ) �_bootstrap_module� self_module� builtin_name�builtin_module� os_details� builtin_osr r � os_module� thread_module�weakref_module� winreg_moduler r r �_setupe sR ! r� c C st t | � t � } t j j t j | � g � t j d k rN t j j t � t j j t � t | _ t | _ d S)z)Install the path-based import components.r| N)r� r� r rD r� rO rj r r� � meta_pathr� r� r? r )r� �supported_loadersr r r �_install� s r� )r )r r )>r� r �%_CASE_INSENSITIVE_PLATFORMS_BYTES_KEYr r r r r" r. r0 r5 r6 r8 rI �type�__code__r� r r� r r �_RAW_MAGIC_NUMBERZ_msg� SystemErrorr� r\ r[ rk r] �DEBUG_BYTECODE_SUFFIXES�OPTIMIZED_BYTECODE_SUFFIXESrf rq ry r} r r� r� r� r� r� r� r� �objectr� r� r� r� r� r r r r& r r' r= r? rO rt r� r� r� r r r r �<module> sr r , ! 9 A@ n)+59)�� D
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