Deal more sensibly with KeyboardInterrupt

Issue #4 new
Michael Forbes
repo owner created an issue

The desired interface is that the user can terminate the process cleanly with Ctrl-c. This can, however, interrupt a plot or calculation in a critical state, corrupting data, or worse, causing a seg-fault.

We should provide an option to replace the signal.SIGINT handler and use this to close threads etc. in a good place to prevent hangs, etc.

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