errors during installing

[cyz0315]

When installing, this error encountered.

./isdhic/c/_isdhicmodule.c:22:17: error: 'PyTypeObject {aka struct _typeobject}' has no member named
ob_type'; did you mean 'ob_base'?
PyProlsq_Type.ob_type = &PyType_Type;
^~~~~~~
ob_base
./isdhic/c/_isdhicmodule.c:23:18: error: 'PyTypeObject {aka struct _typeobject}' has no member named
ob_type'; did you mean 'ob_base'?
PyRosetta_Type.ob_type = &PyType_Type;
^~~~~~~
ob_base
./isdhic/c/_isdhicmodule.c:24:17: error: 'PyTypeObject {aka struct _typeobject}' has no member named
ob_type'; did you mean 'ob_base'?
PyNBList_Type.ob_type = &PyType_Type;
^~~~~~~
ob_base
error: command '/home/cheyizhuo/miniconda3/bin/gcc' failed with exit code 1

I tried with python 3.7 and 3.9. Same error occured.
Thanks a lot!

[simeoncarstens]

That's a Python 3 incompatibility. This code was developed for Python 2.7.
You can fix this specific error by doing the following change: in isdhic/c/_isdhicmodule.c, replace

PyProlsq_Type.ob_type = &PyType_Type;
PyRosetta_Type.ob_type = &PyType_Type;
PyNBList_Type.ob_type = &PyType_Type;

with

Py_TYPE(&PyProlsq_Type) = &PyType_Type;
Py_TYPE(&PyRosetta_Type) = &PyType_Type;
Py_TYPE(&PyNBList_Type) = &PyType_Type;

But very likely other parts of the code need adaption, too. So your best bet would probably be to use Python 2.7.