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_bootstrap_external.cpython-39.pyc
a cdh @ s d Z ddladdlZddladdlZddlZtjdkZerLddlZ ddl Z nddl Z erbddgZ ndgZ e dd e D s~J e d Zee Zde Z d d e D Zd Zd Zee Zd d Zdd Zdd Zdd Zerdd Zndd Zdd Zdd Z d d Z d d Z d d! Z er$d"d# Z nd$d# Z dd&d'Z!e"e!j#Z$d(%d)d*d+ Z&e'(e&d*Z)d,Z*d-Z+d.gZ,d/gZ-e- Z.Z/ddd0d1d2Z0d3d4 Z1d5d6 Z2d7d8 Z3d9d: Z4d;d< Z5d=d> Z6d?d@ Z7dAdB Z8dCdD Z9ddEdFZ:ddGdHZ;ddJdKZ<dLdM Z=e> Z?dde?dNdOdPZ@G dQdR dRZAG dSdT dTZBG dUdV dVeBZCG dWdX dXZDG dYdZ dZeDeCZEG d[d\ d\eDeBZFg ZGG d]d^ d^eDeBZHG d_d` d`ZIG dadb dbZJG dcdd ddZKG dedf dfZLddgdhZMdidj ZNdkdl ZOdmdn ZPdodpdqdrdsdtdudvdwdxdydzd{d|d}d~dZQdd ZRdS )a^ 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. Nwin32\/c c s | ]}t |d kV qdS Nlen.0sep r 5/usr/lib64/python3.9/importlib/_bootstrap_external.py <genexpr>+ r c C s h | ]}d | qS :r r sr r r <setcomp>/ r r )win)cygwindarwinc s< t jtr0t jtr d nd fdd} ndd } | S )N PYTHONCASEOKs PYTHONCASEOKc s t jj o tjv S )z^True if filenames must be checked case-insensitively and ignore environment flags are not set.)sysflagsignore_environment_osenvironr keyr r _relax_case@ s z%_make_relax_case.<locals>._relax_casec S s dS )z5True if filenames must be checked case-insensitively.Fr r r r r r! D s )r platform startswith_CASE_INSENSITIVE_PLATFORMS#_CASE_INSENSITIVE_PLATFORMS_STR_KEY)r! r r r _make_relax_case9 s r& c C s t | d@ ddS )z*Convert a 32-bit integer to little-endian. little)intto_bytes)xr r r _pack_uint32J s r- c C s t | dksJ t| dS )z/Convert 4 bytes in little-endian to an integer.r( r) r r* from_bytesdatar r r _unpack_uint32O s r2 c C s t | dksJ t| dS )z/Convert 2 bytes in little-endian to an integer. r) r. r0 r r r _unpack_uint16T s r4 c G s | sdS t | dkr | d S d}g }ttj| D ]z\}}|tsL|trf|tpX|}t | g}q0|dr| | kr|}|g}q| | q0|p|}| | q0dd |D }t |dkr|d s|t S |t | S ) Replacement for os.path.join().r r r r c S s g | ]}|r| tqS r rstrippath_separatorsr pr r r <listcomp>r r _path_join.<locals>.<listcomp>) r mapr _path_splitrootr# path_sep_tupleendswithr7 r8 path_sepcasefoldappendjoin) path_partsrootpathZnew_roottailr r r _path_join[ s* rI c G s t dd | D S )r5 c S s g | ]}|r| tqS r r6 )r partr r r r; { s r< )rA rD )rE r r r rI y s c sB t fddtD }|dk r&d fS d| |d d fS )z Replacement for os.path.split().c 3 s | ]} |V qd S N)rfindr9 rG r r r r z _path_split.<locals>.<genexpr>r r Nr )maxr8 )rG ir rM r _path_split s rP c C s t | S )z~Stat the path. Made a separate function to make it easier to override in experiments (e.g. cache stat results). )r statrM r r r _path_stat s rR c C s0 z t | }W n ty Y dS 0 |jd@ |kS )z1Test whether the path is the specified mode type.Fi )rR OSErrorst_mode)rG mode stat_infor r r _path_is_mode_type s rW c C s t | dS )z Replacement for os.path.isfile.i )rW rM r r r _path_isfile s rX c C s | s t } t| dS )z Replacement for os.path.isdir.i @ )r getcwdrW rM r r r _path_isdir s rZ c C s> | sdS t | d dd}t|dko<|dp<|dS ) Replacement for os.path.isabs.Fr r r r z\\)r r> replacer r# r@ )rG rF r r r _path_isabs s r] c C s | tS )r[ )r# r8 rM r r r r] s c C s d | t| }t|tjtjB tjB |d@ }zFt|d}| | W d n1 s^0 Y t || W n6 t y zt | W n t y Y n0 Y n0 dS )zBest-effort function to write data to a path atomically. Be prepared to handle a FileExistsError if concurrent writing of the temporary file is attempted.{}.{}r^ wbN) formatidr openO_EXCLO_CREATO_WRONLY_ioFileIOwriter\ rS unlink)rG r1 rU path_tmpfdfiler r r _write_atomic s ( rn ia r3 r) s __pycache__zopt-z.pyz.pyc) optimizationc C sX |dur4t dt |dur(d}t||r0dnd}t| } t| \}}|d\}}}tj j } | du rrt dd |r~|n||| g} |du rtj jdkrd}ntj j}t|}|dkr| std |d | t|} | td } tjdurLt|stt |}|d d kr8|d tvr8|d d }ttj|t| S t|t| 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 .$sys.implementation.cache_tag is Noner z{!r} is not alphanumericz{}.{}{}r r3 ) _warningswarnDeprecationWarning TypeErrorr fspathrP rpartitionr implementation cache_tagNotImplementedErrorrD r optimizestrisalnum ValueErrorra _OPTBYTECODE_SUFFIXESpycache_prefixr] rI rY r8 lstrip_PYCACHE) rG debug_overriderp messageheadrH baser resttagalmost_filenamefilenamer r r cache_from_sourcei sH r c C s. t jjdu rtdt| } t| \}}d}t jdurft jt }| |t rf|t |d }d}|st|\}}|t krtt d| |d}|dvrtd|n\|d kr|dd d }| tstd t|t td }| std |d|dd } t|| td 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. Nrr FTz not bottom-level directory in rq > r3 z expected only 2 or 3 dots in r r3 z5optimization portion of filename does not start with zoptimization level z is not an alphanumeric valuer )r ry rz r{ r rw rP r r7 r8 r# rA r r r countrsplitr r~ partitionrI SOURCE_SUFFIXES) rG r pycache_filenamefound_in_pycache_prefix stripped_pathpycache dot_countrp opt_level base_filenamer r r source_from_cache s< r c C s| t | dkrdS | d\}}}|r8| dd dkr<| S z t| }W n" ttfyj | dd }Y n0 t|rx|S | S )zConvert a bytecode file path to a source path (if possible). This function exists purely for backwards-compatibility for PyImport_ExecCodeModuleWithFilenames() in the C API. r Nrq py)r rx lowerr r{ r rX ) bytecode_pathr _ extension source_pathr r r _get_sourcefile s r c C sH | ttr.z t| W S ty* Y qD0 n| ttr@| S d S d S rK )r@ tupler r r{ r )r r r r _get_cached s r c C s2 zt | j}W n ty$ d}Y n0 |dO }|S )z3Calculate the mode permissions for a bytecode file.r^ )rR rT rS )rG rU r r r _calc_mode s r c sB d fdd }z t j}W n ty2 dd }Y n0 || |S )zDecorator 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 sH |d u r| j }n | j |kr0td| j |f |d | |g|R i |S )Nz loader for %s cannot handle %sname)r ImportError)selfr argskwargsmethodr r _check_name_wrapper s z(_check_name.<locals>._check_name_wrapperc S s8 dD ] }t ||rt| |t|| q| j|j d S )N) __module____name__ __qualname____doc__)hasattrsetattrgetattr__dict__update)newoldr\ r r r _wrap s z_check_name.<locals>._wrap)N) _bootstrapr NameError)r r r r r r _check_name s r c C s< | |\}}|du r8t|r8d}t||d t |S )zTry 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__r ) find_loaderr rs rt ra ImportWarning)r fullnameloaderportionsmsgr r r _find_module_shim s r c C s | dd }|t kr@d|d|}td| t|fi |t| dk rjd|}td| t|t| dd }|d @ rd |d |}t|fi ||S ) aT Perform basic validity checking of a pyc header and return the flags field, which determines how the pyc should be further validated against the source. *data* is the contents of the pyc file. (Only the first 16 bytes are required, though.) *name* is the name of the module being imported. It is used for logging. *exc_details* is a dictionary passed to ImportError if it raised for improved debugging. ImportError is raised when the magic number is incorrect or when the flags field is invalid. EOFError is raised when the data is found to be truncated. Nr( zbad magic number in z: {} z(reached EOF while reading pyc header of zinvalid flags z in ) MAGIC_NUMBERr _verbose_messager r EOFErrorr2 )r1 r exc_detailsmagicr r r r r _classify_pyc0 s r c C sx t | dd |d@ kr>d|}td| t|fi ||durtt | dd |d@ krttd|fi |dS )a Validate a pyc against the source last-modified time. *data* is the contents of the pyc file. (Only the first 16 bytes are required.) *source_mtime* is the last modified timestamp of the source file. *source_size* is None or the size of the source file in bytes. *name* is the name of the module being imported. It is used for logging. *exc_details* is a dictionary passed to ImportError if it raised for improved debugging. An ImportError is raised if the bytecode is stale. r r' zbytecode is stale for r Nr )r2 r r r )r1 source_mtime source_sizer r r r r r _validate_timestamp_pycQ s r c C s* | dd |kr&t d|fi |dS )a Validate a hash-based pyc by checking the real source hash against the one in the pyc header. *data* is the contents of the pyc file. (Only the first 16 bytes are required.) *source_hash* is the importlib.util.source_hash() of the source file. *name* is the name of the module being imported. It is used for logging. *exc_details* is a dictionary passed to ImportError if it raised for improved debugging. An ImportError is raised if the bytecode is stale. r r z.hash in bytecode doesn't match hash of source N)r )r1 source_hashr r r r r _validate_hash_pycm s r c C sP t | }t|tr8td| |dur4t|| |S td |||ddS )z#Compile bytecode as found in a pyc.zcode object from {!r}NzNon-code object in {!r}r rG ) marshalloads isinstance _code_typer r _imp_fix_co_filenamer ra )r1 r r r coder r r _compile_bytecode s r c C sF t t}|td |t| |t| |t| |S )z+Produce the data for a timestamp-based pyc.r ) bytearrayr extendr- r dumps)r mtimer r1 r r r _code_to_timestamp_pyc s r Tc C sP t t}d|d> B }|t| t|dks2J || |t| |S )z&Produce the data for a hash-based pyc.r r )r r r r- r r r )r r checkedr1 r r r r _code_to_hash_pyc s r c C s> ddl }t| j}||}tdd}|| |d S )zyDecode bytes representing source code and return the string. Universal newline support is used in the decoding. r NT)tokenizerg BytesIOreadlinedetect_encodingIncrementalNewlineDecoderdecode) source_bytesr source_bytes_readlineencodingnewline_decoderr r r decode_source s r r submodule_search_locationsc C s |du r:d}t |drDz|| }W qD ty6 Y qD0 n t|}tj| ||d}d|_|du rt D ]*\}}| t |rh|| |}||_ qqhdS |t u rt |drz| | }W n ty Y q0 |rg |_n||_|jg kr|rt|d }|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_filenameoriginT is_packager )r r r r rw r ModuleSpec _set_fileattr_get_supported_file_loadersr@ r r _POPULATEr r rP rC ) r locationr r spec loader_classsuffixesr dirnamer r r spec_from_file_location s> r c @ sP e Zd ZdZdZdZdZedd Zedd Z edd d Z edd 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 s6 zt t j|W S ty0 t t j| Y S 0 d S rK )winregOpenKeyHKEY_CURRENT_USERrS HKEY_LOCAL_MACHINE)clsr r r r _open_registry s z$WindowsRegistryFinder._open_registryc C s | j r| j}n| j}|j|dtjd d d}z:| | }t|d}W d n1 s^0 Y W n t y~ Y d S 0 |S )Nz%d.%dr3 )r sys_versionr ) DEBUG_BUILDREGISTRY_KEY_DEBUG REGISTRY_KEYra r version_infor r QueryValuerS )r r registry_keyr hkeyfilepathr r r _search_registry s . z&WindowsRegistryFinder._search_registryNc C sx | |}|d u rd S z t| W n ty6 Y d S 0 t D ]4\}}|t|r>tj|||||d}| S q>d S )Nr )r rR rS r r@ r r spec_from_loader)r r rG targetr r r r r r r find_spec s z WindowsRegistryFinder.find_specc C s" | ||}|dur|jS dS dS )zlFind module named in the registry. This method is deprecated. Use exec_module() instead. Nr r r r rG r r r r find_module. s z!WindowsRegistryFinder.find_module)NN)N) r r r r r r r classmethodr r r r r r r r r s r c @ s0 e Zd ZdZdd Zdd Zdd Zdd Zd S ) _LoaderBasicszSBase class of common code needed by both SourceLoader and SourcelessFileLoader.c C s@ t | |d }|ddd }|dd }|dko>|dkS )zConcrete implementation of InspectLoader.is_package by checking if the path returned by get_filename has a filename of '__init__.py'.r rq r r3 __init__)rP r r rx )r r r filename_base tail_namer r r r A s z_LoaderBasics.is_packagec C s dS z*Use default semantics for module creation.Nr r r r r r create_moduleI s z_LoaderBasics.create_modulec C s8 | |j}|du r$td|jtt||j dS )zExecute the module.Nz4cannot load module {!r} when get_code() returns None)get_coder r ra r _call_with_frames_removedexecr )r moduler r r r exec_moduleL s z_LoaderBasics.exec_modulec C s t | |S )zThis module is deprecated.)r _load_module_shimr r r r r load_moduleT s z_LoaderBasics.load_moduleN)r r r r r r! r& r) r r r r r < s r c @ sJ e Zd Zdd Zdd Zdd Zdd Zd d Zd d d dZdd Z dS ) SourceLoaderc C s t dS )zOptional method that returns the modification time (an int) for the specified path (a str). Raises OSError when the path cannot be handled. N)rS r rG r r r path_mtime[ s zSourceLoader.path_mtimec C s d| |iS )a Optional method returning a metadata dict for the specified path (a 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 OSError when the path cannot be handled. r )r, r+ r r r path_statsc s zSourceLoader.path_statsc C s | ||S )zOptional 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 r cache_pathr1 r r r _cache_bytecodeq s z SourceLoader._cache_bytecodec C s dS )zOptional method which writes data (bytes) to a file path (a str). Implementing this method allows for the writing of bytecode files. Nr )r rG r1 r r r r. { s zSourceLoader.set_datac C sT | |}z| |}W n2 tyJ } ztd|d|W Y d}~n d}~0 0 t|S )z4Concrete implementation of InspectLoader.get_source.z'source not available through get_data()r N)r get_datarS r r )r r rG r excr r r get_source s zSourceLoader.get_sourcer ) _optimizec C s t jt||dd|dS )zReturn the code object compiled from source. The 'data' argument can be any object type that compile() supports. r$ T) dont_inheritr| )r r# compile)r r1 rG r4 r r r source_to_code s zSourceLoader.source_to_codec C s | |}d}d}d}d}d}z t|}W n tyB d}Y n*0 z| |} W n tyf Y n0 t| d }z| |} W n ty Y n0 ||d} zt| || } t| dd } | d@ dk}|r | d @ dk}t j d kr2|st j d kr2| |}t t |}t | ||| nt| || d || W n ttfyL Y n 0 td || t| |||dS |du r| |}| ||}td| tjs|dur|dur|r|du rt t |}t|||} nt||t|} z| ||| W n ty Y n0 |S )zConcrete implementation of InspectLoader.get_code. Reading of bytecode requires path_stats to be implemented. To write bytecode, set_data must also be implemented. NFTr r r r r r3 neveralwayssizez {} matches {})r r r zcode object from {})r r r{ r- rS r* r1 r memoryviewr check_hash_based_pycsr _RAW_MAGIC_NUMBERr r r r r r r r7 r dont_write_bytecoder r r r0 )r r r r r r hash_based check_sourcer str1 r r bytes_data code_objectr r r r" s zSourceLoader.get_codeN) r r r r, r- r0 r. r3 r7 r" r r r r r* Y s r* c s| e Zd ZdZdd Zdd Zdd Ze fdd Zed d Z d d Z edd Z dd Z dd Z dd Zdd Z ZS ) FileLoaderzgBase file loader class which implements the loader protocol methods that require file system usage.c C s || _ || _dS )zKCache the module name and the path to the file found by the finder.Nr )r r rG r r r r s zFileLoader.__init__c C s | j |j ko| j|jkS rK __class__r r otherr r r __eq__ s zFileLoader.__eq__c C s t | jt | jA S rK hashr rG r r r r __hash__ s zFileLoader.__hash__c s t t| |S )zdLoad a module from a file. This method is deprecated. Use exec_module() instead. )superrD r) r( rF r r r) s zFileLoader.load_modulec C s | j S z:Return the path to the source file as found by the finder.rM r( r r r r s zFileLoader.get_filenamec C s~ t | ttfrFtt|}| W d S 1 s:0 Y n4t|d}| W d S 1 sp0 Y dS )z'Return the data from path as raw bytes.Nr)r r* ExtensionFileLoaderrg open_coder} readrh )r rG rm r r r r1 s (zFileLoader.get_datac C s | |r| S d S rK )r r r% r r r get_resource_reader s z FileLoader.get_resource_readerc C s t t| jd |}t|dS )Nr rQ )rI rP rG rg rh r resourcerG r r r open_resource s zFileLoader.open_resourcec C s& | |sttt| jd |}|S Nr ) is_resourceFileNotFoundErrorrI rP rG rW r r r resource_path" s zFileLoader.resource_pathc C s( t |v r dS tt| jd |}t|S )NFr )rA rI rP rG rX r r rG r r r r[ ( s zFileLoader.is_resourcec C s t tt| jd S rZ )iterr listdirrP rG rL r r r contents. s zFileLoader.contents)r r r r r rI rM r r) r r1 rV rY r] r[ ra __classcell__r r rO r rD s rD c @ s. e Zd ZdZdd Zdd Zdddd Zd S ) SourceFileLoaderz>Concrete implementation of SourceLoader using the file system.c C s t |}|j|jdS )z!Return the metadata for the path.)r r: )rR st_mtimest_size)r rG rA r r r r- 6 s zSourceFileLoader.path_statsc C s t |}| j|||dS )N_mode)r r. )r r r r1 rU r r r r0 ; s z SourceFileLoader._cache_bytecoder^ rf c C s t |\}}g }|r4t|s4t |\}}|| qt|D ]h}t||}zt| W q< tyn Y q<Y q< ty } z t d|| W Y d}~ dS d}~0 0 q<z t ||| t d| W n4 t y } zt d|| W Y d}~n d}~0 0 dS )zWrite bytes data to a file.zcould not create {!r}: {!r}Nz created {!r}) rP rZ rC reversedrI r mkdirFileExistsErrorrS r r rn ) r rG r1 rg parentr rE rJ r2 r r r r. @ s. zSourceFileLoader.set_dataN)r r r r r- r0 r. r r r r rc 2 s rc c @ s e Zd ZdZdd Zdd ZdS )SourcelessFileLoaderz-Loader which handles sourceless file imports.c C sD | |}| |}||d}t||| tt|dd ||dS )Nr r )r r )r r1 r r r; )r r rG r1 r r r r r" c s z SourcelessFileLoader.get_codec C s dS )z'Return None as there is no source code.Nr r( r r r r3 s s z SourcelessFileLoader.get_sourceN)r r r r r" r3 r r r r rl _ s rl c @ s\ e Zd ZdZdd Zdd Zdd Zdd Zd d Zd d Z dd Z dd Z e dd Z dS )rR z]Loader for extension modules. The constructor is designed to work with FileFinder. c C s> || _ t|s4ztt |}W n ty2 Y n0 || _d S rK )r r] rI r rY rS rG r^ r r r r s z ExtensionFileLoader.__init__c C s | j |j ko| j|jkS rK rE rG r r r rI s zExtensionFileLoader.__eq__c C s t | jt | jA S rK rJ rL r r r rM s z ExtensionFileLoader.__hash__c C s$ t tj|}t d|j| j |S )z&Create an unitialized extension modulez&extension module {!r} loaded from {!r})r r# r create_dynamicr r rG )r r r% r r r r! s z!ExtensionFileLoader.create_modulec C s$ t tj| t d| j| j dS )z Initialize an extension modulez(extension module {!r} executed from {!r}N)r r# r exec_dynamicr r rG rU r r r r& s z ExtensionFileLoader.exec_modulec s$ t | jd t fddtD S )z1Return True if the extension module is a package.r c 3 s | ]} d | kV qdS )r Nr r suffix file_namer r r s z1ExtensionFileLoader.is_package.<locals>.<genexpr>)rP rG anyEXTENSION_SUFFIXESr( r rq r r s z ExtensionFileLoader.is_packagec C s dS )z?Return None as an extension module cannot create a code object.Nr r( r r r r" s z ExtensionFileLoader.get_codec C s dS )z5Return None as extension modules have no source code.Nr r( r r r r3 s z ExtensionFileLoader.get_sourcec C s | j S rP rM r( r r r r s z ExtensionFileLoader.get_filenameN)r r r r r rI rM r! r& r r" r3 r r r r r r rR | s rR c @ sl e Zd ZdZdZdd Zdd Zdd Zd d Zd d Z d d Z dd Z dd Z dd Z dd Zdd ZdS )_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.r c C s, || _ || _t| | _| j| _|| _d S rK )_name_pathr _get_parent_path_last_parent_path_epoch _last_epoch _path_finderr r rG path_finderr r r r s z_NamespacePath.__init__c C s& | j d\}}}|dkr dS |dfS )z>Returns a tuple of (parent-module-name, parent-path-attr-name)rq r )r rG __path__)rv rx )r rk dotmer r r _find_parent_path_names s z&_NamespacePath._find_parent_path_namesc C s | \}}ttj| |S rK )r r r modules)r parent_module_namepath_attr_namer r r rx s z _NamespacePath._get_parent_pathc C sd t | }|| jks"| j| jkr^| | j|}|d urP|jd u rP|jrP|j| _ || _| j| _| j S rK ) r rx ry rz r{ r| rv r r rw )r parent_pathr r r r _recalculate s z_NamespacePath._recalculatec C s t | S rK )r_ r rL r r r __iter__ s z_NamespacePath.__iter__c C s | | S rK r )r indexr r r __getitem__ s z_NamespacePath.__getitem__c C s || j |< d S rK )rw )r r rG r r r __setitem__ s z_NamespacePath.__setitem__c C s t | S rK )r r rL r r r __len__ s z_NamespacePath.__len__c C s d | jS )Nz_NamespacePath({!r}))ra rw rL r r r __repr__ s z_NamespacePath.__repr__c C s || v S rK r r itemr r r __contains__ s z_NamespacePath.__contains__c C s | j | d S rK )rw rC r r r r rC s z_NamespacePath.appendN)r r r r rz r r rx r r r r r r r rC r r r r ru s ru c @ sP e Zd Zdd Zedd Zdd Zdd Zd d Zd d Z d d Z dd Z dS )_NamespaceLoaderc C s t |||| _d S rK )ru rw r} r r r r s z_NamespaceLoader.__init__c C s d |jS )zsReturn repr for the module. The method is deprecated. The import machinery does the job itself. z<module {!r} (namespace)>)ra r )r r% r r r module_repr s z _NamespaceLoader.module_reprc C s dS )NTr r( r r r r s z_NamespaceLoader.is_packagec C s dS )Nr r r( r r r r3 s z_NamespaceLoader.get_sourcec C s t dddddS )Nr z<string>r$ T)r5 )r6 r( r r r r" s z_NamespaceLoader.get_codec C s dS r r r r r r r! s z _NamespaceLoader.create_modulec C s d S rK r rU r r r r& s z _NamespaceLoader.exec_modulec C s t d| j t | |S )zbLoad a namespace module. This method is deprecated. Use exec_module() instead. z&namespace module loaded with path {!r})r r rw r' r( r r r r) s z _NamespaceLoader.load_moduleN) r r r r r r r r3 r" r! r& r) r r r r r s r c @ sv e Zd ZdZedd Zedd Zedd Zedd Zedd d Z edd dZ edddZ edd Z d S ) PathFinderz>Meta path finder for sys.path and package __path__ attributes.c C sN t tj D ],\}}|du r(tj|= qt|dr| qt jd7 _dS )z}Call the invalidate_caches() method on all path entry finders stored in sys.path_importer_caches (where implemented).Ninvalidate_cachesr )listr path_importer_cacheitemsr r ru rz )r r finderr r r r ) s z PathFinder.invalidate_cachesc C sR t jdur t js tdt t jD ]*}z||W S tyJ Y q"Y q"0 q"dS )z.Search sys.path_hooks for a finder for 'path'.Nzsys.path_hooks is empty)r path_hooksrs rt r r )r rG hookr r r _path_hooks6 s zPathFinder._path_hooksc C sd |dkr*z t }W n ty( Y dS 0 ztj| }W n& ty^ | |}|tj|< Y n0 |S )zGet 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 rY r\ r r KeyErrorr )r rG r r r r _path_importer_cacheC s z PathFinder._path_importer_cachec C sR t |dr||\}}n||}g }|d ur<t||S t|d }||_|S )Nr )r r r r r r r )r r r r r r r r r _legacy_get_specY s zPathFinder._legacy_get_specNc C s g }|D ]}t |ttfs q| |}|durt|drF|||}n | ||}|du r\q|jdurn| S |j}|du rt d| | qt |d}||_|S )z?Find the loader or namespace_path for this module/package name.Nr zspec missing loader) r r} bytesr r r r r r r r r r ) r r rG r namespace_pathentryr r r r r r _get_spech s( zPathFinder._get_specc C sd |du rt j}| |||}|du r(dS |jdu r\|j}|rVd|_t||| j|_|S dS n|S dS )zTry to find a spec for 'fullname' on sys.path or 'path'. The search is based on sys.path_hooks and sys.path_importer_cache. N)r rG r r r r ru )r r rG r r r r r r r s zPathFinder.find_specc C s | ||}|du rdS |jS )zfind 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. Nr r r r r r s zPathFinder.find_modulec O s ddl m} |j|i |S )a Find distributions. Return an iterable of all Distribution instances capable of loading the metadata for packages matching ``context.name`` (or all names if ``None`` indicated) along the paths in the list of directories ``context.path``. r )MetadataPathFinder)importlib.metadatar find_distributions)r r r r r r r r s z PathFinder.find_distributions)N)NN)N) r r r r r r r r r r r r r r r r r r % s" r c @ sZ e Zd ZdZdd Zdd ZeZdd Zdd Z dd d Z d d Z e dd Z dd Zd S ) FileFinderzFile-based finder. Interactions with the file system are cached for performance, being refreshed when the directory the finder is handling has been modified. c sp g }|D ] \ }| fdd|D q|| _|p6d| _t| jsVtt | j| _d| _t | _ t | _ dS )zInitialize 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 | ]}| fV qd S rK r ro r r r r r z&FileFinder.__init__.<locals>.<genexpr>rq r N) r _loadersrG r] rI r rY _path_mtimeset _path_cache_relaxed_path_cache)r rG loader_detailsloadersr r r r r s zFileFinder.__init__c C s d| _ dS )z Invalidate the directory mtime.r N)r rL r r r r s z FileFinder.invalidate_cachesc C s* | |}|du rdg fS |j|jp&g fS )zTry 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 ||||dS )Nr )r )r r r rG smslr r r r r r s zFileFinder._get_specNc C s~ d}| dd }zt| jp"t j}W n ty@ d}Y n0 || jkrZ| || _t rp| j }| }n | j }|}||v rt | j|}| jD ]:\} } d| } t || } t| r| | || |g| S qt|}| jD ]p\} } zt | j|| } W n ty Y dS 0 tjd| dd || |v rt| r| | || d| S q|rztd | t|d} |g| _| S dS ) zoTry to find a spec for the specified module. Returns the matching spec, or None if not found. Frq r3 r r Nz trying {}) verbosityzpossible namespace for {})rx rR rG r rY rd rS r _fill_cacher! r r r rI r rX r rZ r r r r r )r r r is_namespace tail_moduler cache cache_module base_pathrp r init_filename full_pathr r r r r sN zFileFinder.find_specc C s | j }zt|pt }W n tttfy8 g }Y n0 tj dsRt || _ nJt }|D ]8}| d\}}}|rd || }n|}|| q\|| _ tj trdd |D | _dS )zDFill the cache of potential modules and packages for this directory.r rq r_ c S s h | ] }| qS r )r )r fnr r r r ; r z)FileFinder._fill_cache.<locals>.<setcomp>N)rG r r` rY r\ PermissionErrorNotADirectoryErrorr r" r# r r r ra r addr$ r ) r rG ra lower_suffix_contentsr r r rp new_namer r r r s" zFileFinder._fill_cachec s fdd}|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 | std| d | gR S )z-Path hook for importlib.machinery.FileFinder.z only directories are supportedrM )rZ r rM r r r r path_hook_for_FileFinderG s z6FileFinder.path_hook.<locals>.path_hook_for_FileFinderr )r r r r r r path_hook= s zFileFinder.path_hookc C s d | jS )NzFileFinder({!r}))ra rG rL r r r r O s zFileFinder.__repr__)N)r r r r r r r r r r r r r r r r r r r r s 3 r c C s | d}| d}|sB|r$|j}n ||kr8t||}n t||}|sTt|||d}z$|| d< || d< || d< || d< W n ty Y n0 d S )N __loader____spec__r __file__ __cached__)getr rl rc r Exception)nsr pathname cpathnamer r r r r _fix_up_moduleU s" r c C s* t tt f} ttf}ttf}| ||gS )z_Returns a list of file-based module loaders. Each item is a tuple (loader, suffixes). )rR _alternative_architecturesr extension_suffixesrc r rl r ) extensionssourcebytecoder r r r l s r c C s | a t jat jatjt }ddgfdddgff}|D ]l\}}tdd |D sRJ |d }|tjv rttj| } qq4zt |}W qW q4 ty Y q4Y q40 q4tdt|d | t|d | t|d d | t|d dd |D g d}|dkr| d |D ]4}|tjvr&t |} n tj| } t||| q t|dt t tt |dkrt d dt v rdt_dS )zSetup 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. posixr ntr c s s | ]}t |d kV qdS r r r r r r r r z_setup.<locals>.<genexpr>r z importlib requires posix or ntr rA r8 r _pathseps_with_colonc S s h | ]}d | qS r r r r r r r r z_setup.<locals>.<setcomp>)rg rs r r r! z.pywz_d.pydTN)r r r r r all_builtin_from_namer r rD rC r& rt r r r r r r ) _bootstrap_module self_module os_details builtin_osr8 rA os_module builtin_names builtin_namebuiltin_moduler r r _setupw sF r c C s2 t | t }tjtj| g tjt dS )z)Install the path-based import components.N) r r r r r r r meta_pathrC r )r supported_loadersr r r _install s r -arm-linux-gnueabihf.-armeb-linux-gnueabihf.-mips64-linux-gnuabi64.-mips64el-linux-gnuabi64.-powerpc-linux-gnu.-powerpc-linux-gnuspe.-powerpc64-linux-gnu.-powerpc64le-linux-gnu.-arm-linux-gnueabi.-armeb-linux-gnueabi.-mips64-linux-gnu.-mips64el-linux-gnu.-ppc-linux-gnu.-ppc-linux-gnuspe.-ppc64-linux-gnu.-ppc64le-linux-gnu.)r r r r r r r r r r r r r r r r c C sF | D ]<}t D ].\}}||v r| ||| | S qq| S )zAdd a suffix with an alternative architecture name to the list of suffixes so an extension built with the default (upstream) setting is loadable with our Pythons ) _ARCH_MAPr rC r\ )r rp original alternativer r r r s r )r^ )N)NNN)r r )T)N)N)Sr r rg r rs r r" _MS_WINDOWSr r r r r8 r rA r r? rD r r% %_CASE_INSENSITIVE_PLATFORMS_BYTES_KEYr$ r& r- r2 r4 rI rP rR rW rX rZ r] rn type__code__r r+ r r* r/ r= r r r r DEBUG_BYTECODE_SUFFIXESOPTIMIZED_BYTECODE_SUFFIXESr r r r r r r r r r r r r r objectr r r r r* rD rc rl rt rR ru r r r r r r r r r r r r r <module> s G( ! 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