Zack Weinberg <> added the comment:

I have observed this problem in a production application using Python 3.5 and 
3.6 (system-packaged interpreters from Ubuntu) and I would like to mention that 
this is an effective workaround:

import ctypes
libgcc_s = ctypes.CDLL("")

provided you do it before creating any threads, and the variable `libgcc_s` 
remains live until after all threads are terminated.

nosy: +zwol

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