Retry _configure_option to fix IOError caused by not-ready sys files #3
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Thanks @troelsim for the PR. I think, it would better if we keep the asynchronous nature of the library here. See discussion here: http://twistedmatrix.com/pipermail/twisted-python/2015-December/030041.html |
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Address #1 by retrying _configure_option 3 times before aborting.
If it fails first time, try again after 20 ms, then again after 5*20ms = 100 ms.