[issue24714] Crash with string_at(None)

[STINNER Victor]

STINNER Victor added the comment:

ctypes gives you a raw access to the memory. If you try to read unmapped memory areas, the program may or may not crash. Usually, you get a segmentation fault.

https://en.wikipedia.org/wiki/Segmentation_fault

Python doesn't provide a portable behaviour on segmentation faults.

Note: You can use faulthandler to get the backtrace on segmentation fault.

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nosy: +haypo
resolution:  -> not a bug

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<http://bugs.python.org/issue24714>
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