ok

Mini Shell

Direktori : /proc/thread-self/root/opt/alt/python39/lib64/python3.9/__pycache__/
Upload File :
Current File : //proc/thread-self/root/opt/alt/python39/lib64/python3.9/__pycache__/contextlib.cpython-39.pyc

a

���e0`�@sZdZddlZddlZddlZddlmZddlmZddlm	Z	m
Z
gd�ZGdd�dej�Z
Gd	d
�d
ej�ZGdd�de�ZGd
d�d�ZGdd�dee
e�ZGdd�dee�Zdd�Zdd�ZGdd�de
�ZGdd�de
�ZGdd�de�ZGdd�de�ZGdd �d e
�ZGd!d"�d"�ZGd#d$�d$ee
�ZGd%d&�d&ee�ZGd'd(�d(e
�ZdS))z4Utilities for with-statement contexts.  See PEP 343.�N)�deque��wraps)�
MethodType�GenericAlias)�asynccontextmanager�contextmanager�closing�nullcontext�AbstractContextManager�AbstractAsyncContextManager�AsyncExitStack�ContextDecorator�	ExitStack�redirect_stdout�redirect_stderr�suppressc@s:eZdZdZee�Zdd�Zej	dd��Z
edd��ZdS)	rz,An abstract base class for context managers.cCs|S�z0Return `self` upon entering the runtime context.���selfrr�//opt/alt/python39/lib64/python3.9/contextlib.py�	__enter__sz AbstractContextManager.__enter__cCsdS�z9Raise any exception triggered within the runtime context.Nr�r�exc_type�	exc_value�	tracebackrrr�__exit__szAbstractContextManager.__exit__cCs|turt�|dd�StS)Nrr)r�_collections_abc�_check_methods�NotImplemented��cls�Crrr�__subclasshook__sz'AbstractContextManager.__subclasshook__N)�__name__�
__module__�__qualname__�__doc__�classmethodr�__class_getitem__r�abc�abstractmethodrr%rrrrrs
rc@s:eZdZdZee�Zdd�Zej	dd��Z
edd��ZdS)	rz9An abstract base class for asynchronous context managers.c�s|Srrrrrr�
__aenter__+sz&AbstractAsyncContextManager.__aenter__c�sdSrrrrrr�	__aexit__/sz%AbstractAsyncContextManager.__aexit__cCs|turt�|dd�StS)Nr.r/)rrr r!r"rrrr%4s
�z,AbstractAsyncContextManager.__subclasshook__N)r&r'r(r)r*rr+r.r,r-r/r%rrrrr%s
rc@s eZdZdZdd�Zdd�ZdS)rzJA base class or mixin that enables context managers to work as decorators.cCs|S)a6Return a recreated instance of self.

        Allows an otherwise one-shot context manager like
        _GeneratorContextManager to support use as
        a decorator via implicit recreation.

        This is a private interface just for _GeneratorContextManager.
        See issue #11647 for details.
        rrrrr�_recreate_cm?s
zContextDecorator._recreate_cmcst����fdd��}|S)Ncs:�����|i|��Wd�S1s,0YdS�N)r0��args�kwds��funcrrr�innerLs
z(ContextDecorator.__call__.<locals>.innerr)rr6r7rr5r�__call__KszContextDecorator.__call__N)r&r'r(r)r0r8rrrrr<src@s eZdZdZdd�Zdd�ZdS)�_GeneratorContextManagerBasezBShared functionality for @contextmanager and @asynccontextmanager.cCsN||i|��|_||||_|_|_t|dd�}|durDt|�j}||_dS)Nr))�genr6r3r4�getattr�typer))rr6r3r4�docrrr�__init__Vs
z%_GeneratorContextManagerBase.__init__cCs|�|j|j|j�Sr1)�	__class__r6r3r4rrrrr0dsz)_GeneratorContextManagerBase._recreate_cmN)r&r'r(r)r>r0rrrrr9Ssr9c@s eZdZdZdd�Zdd�ZdS)�_GeneratorContextManagerz%Helper for @contextmanager decorator.cCs:|`|`|`zt|j�WSty4td�d�Yn0dS�Nzgenerator didn't yield)r3r4r6�nextr:�
StopIteration�RuntimeErrorrrrrrrs
z"_GeneratorContextManager.__enter__c
Cs |dur6zt|j�Wnty*YdS0td��n�|durD|�}z|j�|||�Wn�ty�}z||uWYd}~Sd}~0ty�}zF||ur�WYd}~dSt|t�r�|j|ur�WYd}~dS�WYd}~n<d}~0t�y}z||u�r��WYd}~dSd}~00td��dS)NF�generator didn't stopz#generator didn't stop after throw())rBr:rCrD�throw�
isinstance�	__cause__�
BaseException�r�typ�valuer�excrrrr{s4
��
z!_GeneratorContextManager.__exit__N)r&r'r(r)rrrrrrr@ks	r@c@s eZdZdZdd�Zdd�ZdS)�_AsyncGeneratorContextManagerz*Helper for @asynccontextmanager decorator.c�s@|`|`|`z|j��IdHWSty:td�d�Yn0dSrA)r3r4r6r:�	__anext__�StopAsyncIterationrDrrrrr.�s
z(_AsyncGeneratorContextManager.__aenter__c
�s4|dur>z|j��IdHWnty0YdS0td���n�|durL|�}z|j�|||�IdHWn�ty�}z||uWYd}~Sd}~0t�y�}zJ||ur�WYd}~dSt|ttf�r�|j|ur�WYd}~dS�WYd}~n<d}~0t�y&}z||u�r�WYd}~dSd}~00td��dS)NFrEz$generator didn't stop after athrow())	r:rOrPrD�athrowrGrCrHrIrJrrrr/�s4��
z'_AsyncGeneratorContextManager.__aexit__N)r&r'r(r)r.r/rrrrrN�s	rNcst���fdd��}|S)a�@contextmanager decorator.

    Typical usage:

        @contextmanager
        def some_generator(<arguments>):
            <setup>
            try:
                yield <value>
            finally:
                <cleanup>

    This makes this:

        with some_generator(<arguments>) as <variable>:
            <body>

    equivalent to this:

        <setup>
        try:
            <variable> = <value>
            <body>
        finally:
            <cleanup>
    cst�||�Sr1)r@r2�r6rr�helperszcontextmanager.<locals>.helperr�r6rSrrRrr�srcst���fdd��}|S)a�@asynccontextmanager decorator.

    Typical usage:

        @asynccontextmanager
        async def some_async_generator(<arguments>):
            <setup>
            try:
                yield <value>
            finally:
                <cleanup>

    This makes this:

        async with some_async_generator(<arguments>) as <variable>:
            <body>

    equivalent to this:

        <setup>
        try:
            <variable> = <value>
            <body>
        finally:
            <cleanup>
    cst�||�Sr1)rNr2rRrrrS&sz#asynccontextmanager.<locals>.helperrrTrrRrrsrc@s(eZdZdZdd�Zdd�Zdd�ZdS)	r	a2Context to automatically close something at the end of a block.

    Code like this:

        with closing(<module>.open(<arguments>)) as f:
            <block>

    is equivalent to this:

        f = <module>.open(<arguments>)
        try:
            <block>
        finally:
            f.close()

    cCs
||_dSr1��thing)rrVrrrr>=szclosing.__init__cCs|jSr1rUrrrrr?szclosing.__enter__cGs|j��dSr1)rV�close)r�exc_inforrrrAszclosing.__exit__N�r&r'r(r)r>rrrrrrr	,sr	c@s(eZdZdZdd�Zdd�Zdd�ZdS)�_RedirectStreamNcCs||_g|_dSr1)�_new_target�_old_targets)r�
new_targetrrrr>Isz_RedirectStream.__init__cCs*|j�tt|j��tt|j|j�|jSr1)r\�appendr;�sys�_stream�setattrr[rrrrrNsz_RedirectStream.__enter__cCstt|j|j���dSr1)rar_r`r\�pop�r�exctype�excinst�exctbrrrrSsz_RedirectStream.__exit__)r&r'r(r`r>rrrrrrrZEsrZc@seZdZdZdZdS)raAContext manager for temporarily redirecting stdout to another file.

        # How to send help() to stderr
        with redirect_stdout(sys.stderr):
            help(dir)

        # How to write help() to a file
        with open('help.txt', 'w') as f:
            with redirect_stdout(f):
                help(pow)
    �stdoutN�r&r'r(r)r`rrrrrWsrc@seZdZdZdZdS)rzCContext manager for temporarily redirecting stderr to another file.�stderrNrhrrrrrgsrc@s(eZdZdZdd�Zdd�Zdd�ZdS)	ra?Context manager to suppress specified exceptions

    After the exception is suppressed, execution proceeds with the next
    statement following the with statement.

         with suppress(FileNotFoundError):
             os.remove(somefile)
         # Execution still resumes here if the file was already removed
    cGs
||_dSr1)�_exceptions)r�
exceptionsrrrr>xszsuppress.__init__cCsdSr1rrrrrr{szsuppress.__enter__cCs|duot||j�Sr1)�
issubclassrjrcrrrr~s
zsuppress.__exit__NrYrrrrrms
rc@sbeZdZdZedd��Zedd��Zdd�Zdd	�Zd
d�Z	dd
�Z
dd�Zdd�Zddd�Z
dS)�_BaseExitStackz.A base class for ExitStack and AsyncExitStack.cCs
t||�Sr1�r��cm�cm_exitrrr�_create_exit_wrapper�sz#_BaseExitStack._create_exit_wrappercs���fdd�}|S)Ncs��i���dSr1r�rrM�tb�r3�callbackr4rr�
_exit_wrapper�sz8_BaseExitStack._create_cb_wrapper.<locals>._exit_wrapperr�rvr3r4rwrrur�_create_cb_wrapper�sz!_BaseExitStack._create_cb_wrappercCst�|_dSr1)r�_exit_callbacksrrrrr>�sz_BaseExitStack.__init__cCst|��}|j|_t�|_|S)z@Preserve the context stack by transferring it to a new instance.)r<rzr)r�	new_stackrrr�pop_all�s
z_BaseExitStack.pop_allcCs@t|�}z
|j}Wnty.|�|�Yn0|�||�|S)aRegisters a callback with the standard __exit__ method signature.

        Can suppress exceptions the same way __exit__ method can.
        Also accepts any object with an __exit__ method (registering a call
        to the method instead of the object itself).
        )r<r�AttributeError�_push_exit_callback�
_push_cm_exit�r�exit�_cb_type�exit_methodrrr�push�s	
z_BaseExitStack.pushcCs(t|�}|j}|�|�}|�||�|S)z�Enters the supplied context manager.

        If successful, also pushes its __exit__ method as a callback and
        returns the result of the __enter__ method.
        )r<rrr�rrp�_cm_type�_exit�resultrrr�
enter_context�s

z_BaseExitStack.enter_contextcOs,|j|g|�Ri|��}||_|�|�|S)z\Registers an arbitrary callback and arguments.

        Cannot suppress exceptions.
        )ry�__wrapped__r~�rrvr3r4rwrrrrv�s
z_BaseExitStack.callbackcCs|�||�}|�|d�dS)z;Helper to correctly register callbacks to __exit__ methods.TN)rrr~�rrprqrwrrrr�sz_BaseExitStack._push_cm_exitTcCs|j�||f�dSr1)rzr^)rrv�is_syncrrrr~�sz"_BaseExitStack._push_exit_callbackN)T)r&r'r(r)�staticmethodrrryr>r|r�r�rvrr~rrrrrm�s


rmc@s(eZdZdZdd�Zdd�Zdd�ZdS)	ra�Context manager for dynamic management of a stack of exit callbacks.

    For example:
        with ExitStack() as stack:
            files = [stack.enter_context(open(fname)) for fname in filenames]
            # All opened files will automatically be closed at the end of
            # the with statement, even if attempts to open files later
            # in the list raise an exception.
    cCs|Sr1rrrrrr�szExitStack.__enter__c
s�|ddu}t��d��fdd�}d}d}|jr�|j��\}}|sHJ�z||�r^d}d}d}Wq,t��}||d|d�d}|}Yq,0q,|r�z|dj}	|d�Wnty�|	|d_�Yn0|o�|S)Nr�cs4|j}|dus||urdS|�ur$q*|}q||_dSr1��__context__��new_exc�old_exc�exc_context��	frame_excrr�_fix_exception_context�sz2ExitStack.__exit__.<locals>._fix_exception_contextFT�NNN�r_rXrzrbr�rI)
r�exc_details�received_excr��suppressed_exc�
pending_raiser��cb�new_exc_details�	fixed_ctxrr�rr�s4

zExitStack.__exit__cCs|�ddd�dS�z%Immediately unwind the context stack.N)rrrrrrWszExitStack.closeN)r&r'r(r)rrrWrrrrr�s
1rc@s`eZdZdZedd��Zedd��Zdd�Zdd	�Zd
d�Z	dd
�Z
dd�Zdd�Zdd�Z
dS)r
a�Async context manager for dynamic management of a stack of exit
    callbacks.

    For example:
        async with AsyncExitStack() as stack:
            connections = [await stack.enter_async_context(get_connection())
                for i in range(5)]
            # All opened connections will automatically be released at the
            # end of the async with statement, even if attempts to open a
            # connection later in the list raise an exception.
    cCs
t||�Sr1rnrorrr�_create_async_exit_wrapper-sz)AsyncExitStack._create_async_exit_wrappercs���fdd�}|S)Nc�s��i���IdHdSr1rrsrurrrw3sz>AsyncExitStack._create_async_cb_wrapper.<locals>._exit_wrapperrrxrrur�_create_async_cb_wrapper1sz'AsyncExitStack._create_async_cb_wrapperc�s.t|�}|j}|�|�IdH}|�||�|S)z�Enters the supplied async context manager.

        If successful, also pushes its __aexit__ method as a callback and
        returns the result of the __aenter__ method.
        N)r<r/r.�_push_async_cm_exitr�rrr�enter_async_context7s
z"AsyncExitStack.enter_async_contextcCsBt|�}z
|j}Wnty0|�|d�Yn0|�||�|S)a#Registers a coroutine function with the standard __aexit__ method
        signature.

        Can suppress exceptions the same way __aexit__ method can.
        Also accepts any object with an __aexit__ method (registering a call
        to the method instead of the object itself).
        F)r<r/r}r~r�r�rrr�push_async_exitCs
zAsyncExitStack.push_async_exitcOs.|j|g|�Ri|��}||_|�|d�|S)zfRegisters an arbitrary coroutine function and arguments.

        Cannot suppress exceptions.
        F)r�r�r~r�rrr�push_async_callbackUsz"AsyncExitStack.push_async_callbackc�s|�ddd�IdHdSr�)r/rrrr�aclosebszAsyncExitStack.aclosecCs|�||�}|�|d�dS)zLHelper to correctly register coroutine function to __aexit__
        method.FN)r�r~r�rrrr�fsz"AsyncExitStack._push_async_cm_exitc�s|Sr1rrrrrr.lszAsyncExitStack.__aenter__c�s�|ddu}t��d��fdd�}d}d}|jr�|j��\}}z0|rP||�}n||�IdH}|rnd}d}d}Wq,t��}	||	d|d�d}|	}Yq,0q,|r�z|dj}
|d�Wnty�|
|d_�Yn0|o�|S)Nrr�cs4|j}|dus||urdS|�ur$q*|}q||_dSr1r�r�r�rrr�usz8AsyncExitStack.__aexit__.<locals>._fix_exception_contextFTr�r�)rr�r�r�r�r�r�r��cb_suppressr�r�rr�rr/os8


zAsyncExitStack.__aexit__N)r&r'r(r)r�r�r�r�r�r�r�r�r.r/rrrrr
 s


r
c@s*eZdZdZd	dd�Zdd�Zdd�ZdS)
r
aOContext manager that does no additional processing.

    Used as a stand-in for a normal context manager, when a particular
    block of code is only sometimes used with a normal context manager:

    cm = optional_cm if condition else nullcontext()
    with cm:
        # Perform operation, using optional_cm if condition is True
    NcCs
||_dSr1��enter_result)rr�rrrr>�sznullcontext.__init__cCs|jSr1r�rrrrr�sznullcontext.__enter__cGsdSr1r)r�excinforrrr�sznullcontext.__exit__)NrYrrrrr
�s

r
)r)r,r_r�collectionsr�	functoolsr�typesrr�__all__�ABCrr�objectrr9r@rNrrr	rZrrrrmrr
r
rrrr�<module>s>
�A�>!!PE

Zerion Mini Shell 1.0