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|| '''CPython function''' || '''Jython method''' ||
|| long intobject::PyInt_AsLong(register PyObject *op) || int PyObject.asInt() ||
|| PyObject* intobject::PyInt_FromString(char *s, char **pend, int base) || PyObject PyObject.{{{__int__}}}() ||
|| Py_ssize_t intobject::PyInt_AsSsize_t(register PyObject *op) || int PyObject.{{{__int__}}}().asInt() ||
|| Py_ssize_t abstract::PyNumber_AsSsize_t(PyObject *item, PyObject *err) || int PyObject.asIndex(err) ||
|| int abstract.h::PyIndex_Check(PyObject *ob) || boolean PyObject.isIndex() ||

When using asInt, consider whether you want to ensure the original object is an instanceof PyInteger/PyLong prior to calling asInt on it. It's common to do this check before calling asInt, but is not required -- otherwise asInt will attempt to implicitly convert non int/longs via user defined {{{__int__}}} methods.