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Select reactor
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    A select() based reactor - runs on all POSIX platforms and on Win32.

    @ivar _reads: A dictionary mapping L{FileDescriptor} instances to arbitrary
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    @ivar _writes: A dictionary mapping L{FileDescriptor} instances to
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        Run one iteration of the I/O monitor loop.

        This will run all selectables who had input or output readiness
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				4								cCs't}ddlm}||dS(sIConfigure the twisted mainloop to be run using the select() reactor.
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