suspect-devices/circuitpython/tests/basics/class_use_other.py, branch azure CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=azure 2015-06-20T15:39:39+00:00 py: Use a wrapper to explicitly check self argument of builtin methods. 2015-06-20T15:39:39+00:00 Damien George damien.p.george@gmail.com 2015-06-19T12:49:10+00:00 urn:sha1:06593fb0f23dfc12f482561fbec1717dca0d4db4 Previous to this patch a call such as list.append(1, 2) would lead to a seg fault. This is because list.append is a builtin method and the first argument to such methods is always assumed to have the correct type. Now, when a builtin method is extracted like this it is wrapped in a checker object which checks the the type of the first argument before calling the builtin function. This feature is contrelled by MICROPY_BUILTIN_METHOD_CHECK_SELF_ARG and is enabled by default. See issue #1216.