pybind11: remove std::runtime_error
pybind11: remove std::runtime_error

num_wf does not necessarily need to match num_bands

toxa81/sirius,toxa81/sirius,toxa81/sirius,toxa81/sirius,electronic-structure/sirius,electronic-structure/sirius,electronic-structure/sirius,toxa81/sirius,electronic-structure/sirius,electronic-structure/sirius,electronic-structure/sirius,electronic-structure/sirius,toxa81/sirius