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ZdS )'z4Utilities for with-statement contexts. See PEP 343. N)deque)wrapsasynccontextmanagercontextmanagerclosing nullcontextAbstractContextManagerAbstractAsyncContextManagerAsyncExitStackContextDecorator ExitStackredirect_stdoutredirect_stderrsuppressc @ s2 e Zd ZdZdd Zejdd Zedd Z dS ) r z,An abstract base class for context managers.c C s | S )z0Return `self` upon entering the runtime context. )selfr r //opt/alt/python37/lib64/python3.7/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__ s z AbstractContextManager.__exit__c C s | t krt|ddS tS )Nr r )r _collections_abc_check_methodsNotImplemented)clsCr r r __subclasshook__ s z'AbstractContextManager.__subclasshook__N)
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__module__ __qualname____doc__r abcabstractmethodr classmethodr r r r r r s c @ s2 e Zd ZdZdd Zejdd Zedd Z dS ) r z9An abstract base class for asynchronous context managers.c s | S )z0Return `self` upon entering the runtime context.r )r r r r
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r r r r! r% r" r# r& r$ r r r r r r " s c @ s e Zd ZdZdd Zdd ZdS )r zJA base class or mixin that enables context managers to work as decorators.c C s | S )a6 Return a recreated instance of self.
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This is a private interface just for _GeneratorContextManager.
See issue #11647 for details.
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