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edd� �Z dS ) r z,An abstract base class for context managers.c C � | S �z0Return `self` upon entering the runtime context.� ��selfr r �1/opt/alt/python310/lib64/python3.10/contextlib.py� __enter__ s z AbstractContextManager.__enter__c C s dS �z9Raise any exception triggered within the runtime context.Nr �r �exc_type� exc_value� tracebackr r r �__exit__ � z AbstractContextManager.__exit__c C � | t u r t�|dd�S tS )Nr r! )r �_collections_abc�_check_methods�NotImplemented��cls�Cr r r �__subclasshook__ s z'AbstractContextManager.__subclasshook__N) �__name__�
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r c @ r ) r z9An abstract base class for asynchronous context managers.c � � �| S r r r r r r �
__aenter__+ s �z&AbstractAsyncContextManager.__aenter__c � s �dS r r r r r r � __aexit__/ s �z%AbstractAsyncContextManager.__aexit__c C r# )Nr5 r6 )r r$ r% r& r' r r r r* 4 s
�z,AbstractAsyncContextManager.__subclasshook__N) r+ r, r- r. r/ r r0 r5 r1 r2 r6 r* r r r r r % r3 r c @ � e Zd ZdZdd� Zdd� ZdS )r zJA base class or mixin that enables context managers to work as decorators.c C r )a6 Return a recreated instance of self.
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See issue #11647 for details.
r r r r r � _recreate_cm? s
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$�z(ContextDecorator.__call__.<locals>.innerr �r r@ rA r r? r �__call__K � zContextDecorator.__call__N�r+ r, r- r. r8 rC r r r r r < s r c @ r7 )�AsyncContextDecoratorzPA base class or mixin that enables async context managers to work as decorators.c C r )z-Return a recreated instance of self.
r r r r r r8 V r" z"AsyncContextDecorator._recreate_cmc r9 )Nc � sV ��� � 4 I d H � � | i |��I d H W d �I d H S 1 I d H s$w Y d S r: r; r< r? r r rA \ s �0�z-AsyncContextDecorator.__call__.<locals>.innerr rB r r? r rC [ rD z AsyncContextDecorator.__call__NrE r r r r rF S s rF c @ r7 )� _GeneratorContextManagerBasezBShared functionality for @contextmanager and @asynccontextmanager.c C sN ||i |��| _ |||| _| _| _t|dd �}|d u r"t| �j}|| _d S )Nr. )�genr@ r= r> �getattr�typer. )r r@ r= r> �docr r r �__init__f s
z%_GeneratorContextManagerBase.__init__c C s | � | j| j| j�S r: )� __class__r@ r= r> r r r r r8 t s z)_GeneratorContextManagerBase._recreate_cmN)r+ r, r- r. rL r8 r r r r rG c s rG c @ r7 )�_GeneratorContextManagerz%Helper for @contextmanager decorator.c C s2 | ` | `| `zt| j�W S ty td�d �w �Nzgenerator didn't yield)r= r> r@ �nextrH �
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���z!_GeneratorContextManager.__exit__N)r+ r, r- r. r r! r r r r rN { � rN c @ r7 )� _AsyncGeneratorContextManagerz*Helper for @asynccontextmanager decorator.c � s: �| ` | `| `z t| j�I d H W S ty td�d �w rO )r= r> r@ �anextrH �StopAsyncIterationrR r r r r r5 � s �
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���z'_AsyncGeneratorContextManager.__aexit__N)r+ r, r- r. r5 r6 r r r r r] � r\ r] c � t � �� 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>
c � t � | |�S r: )rN r< �r@ r r �helper � z contextmanager.<locals>.helperr �r@ rd r rc r r � � r c ra )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>
c rb r: )r] r< rc r r rd 8 re z#asynccontextmanager.<locals>.helperr rf r rc r r rg r c @ �( e Zd ZdZdd� Zdd� Zdd� ZdS ) r a2 Context to automatically close something at the end of a block.
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finally:
f.close()
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is equivalent to this:
agen = <module>.fetch(<arguments>)
try:
<block>
finally:
await agen.aclose()
c C ri r: rj rl r r r rL i rm zaclosing.__init__c � � �| j S r: rj r r r r r5 k � �zaclosing.__aenter__c � s �| j �� I d H d S r: )rk �acloserq r r r r6 m s �zaclosing.__aexit__N)r+ r, r- r. rL r5 r6 r r r r r W s
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rw c @ � e Zd ZdZdZdS )r aA Context manager for temporarily redirecting stdout to another file.
# How to send help() to stderr
with redirect_stdout(sys.stderr):
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with redirect_stdout(f):
help(pow)
�stdoutN�r+ r, r- r. r} r r r r r � s r c @ r� )r zCContext manager for temporarily redirecting stderr to another file.�stderrNr� r r r r r � s r c @ rh ) r a? Context manager to suppress specified exceptions
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z_BaseExitStack.pop_allc C sB t |�}z|j}W n ty | �|� Y |S w | �||� |S )a Registers a callback with the standard __exit__ method signature.
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� z_BaseExitStack.pushc C s( t |�}|j}|�|�}| �||� |S )z�Enters the supplied context manager.
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�zExitStack.__exit__c C s | � ddd� dS �z%Immediately unwind the context stack.N)r! r r r r rp F s zExitStack.closeN)r+ r, r- r. r r! rp r r r r r s
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a� Async context manager for dynamic management of a stack of exit
callbacks.
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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.
c C r� r: r� r� r r r �_create_async_exit_wrapperY r� z)AsyncExitStack._create_async_exit_wrapperc r� )Nc � s ��� i ���I d H d S r: r r� r� r r r� _ s �z>AsyncExitStack._create_async_cb_wrapper.<locals>._exit_wrapperr r� r r� r �_create_async_cb_wrapper] r� z'AsyncExitStack._create_async_cb_wrapperc � s0 �t |�}|j}|�|�I dH }| �||� |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)rJ r6 r5 �_push_async_cm_exitr� r r r �enter_async_contextc s � z"AsyncExitStack.enter_async_contextc C sD t |�}z|j}W n ty | �|d� Y |S w | �||� |S )a# Registers a coroutine function with the standard __aexit__ method
signature.
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to the method instead of the object itself).
F)rJ r6 r� r� r� r� r r r �push_async_exito s
� z AsyncExitStack.push_async_exitc O s. | j |g|�R i |��}||_| �|d� |S )zfRegisters an arbitrary coroutine function and arguments.
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F)r� r� r� r� r r r �push_async_callback� s z"AsyncExitStack.push_async_callbackc � s �| � ddd�I dH dS r� )r6 r r r r rv � s �zAsyncExitStack.aclosec C r� )zLHelper to correctly register coroutine function to __aexit__
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aO Context 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
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