PyErr_Format(PyExc_RuntimeError,"`%s' requires an iterable for parameter `X' leading to, at least, two entries (representing two classes), but you have passed something that has only %"PY_FORMAT_SIZE_T"d entries",Py_TYPE(self)->tp_name,Xseq.size());
PyErr_Format(PyExc_RuntimeError,"`%s' requires an iterable for parameter `X' leading to, at least, one entry (representing one class), but you have passed something that has only %"PY_FORMAT_SIZE_T"d entries",Py_TYPE(self)->tp_name,Xseq.size());
return0;
}
if(subtract&&!divide){
PyErr_Format(PyExc_RuntimeError,"`%s' requires you provide both `subtract' and `divide' or neither, but you provided only `subtract'",Py_TYPE(self)->tp_name);