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Xd�Zdefd��YZdefd ��YZdS(!sAcontextlib2 - backports and enhancements to the contextlib modulei����N(tdeque(twrapstcontextmanagertclosingtContextDecoratort	ExitStacktredirect_stdouttredirect_stderrtsuppresstContextStackcBs)eZdZd�Zd�Zd�ZRS(sJA base class or mixin that enables context managers to work as decorators.cCstjdt�|j�S(s�Returns the context manager used to actually wrap the call to the
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