Same problem here with IUSaveConfigText. I can install the package with pip3 but I get the error above when importing PyIndi.
I went a little further and I saw that actually the symbol IUSaveConfigText exists in _PyIndi.cpython-38-x86_64-linux-gnu.so
$ nm -D /usr/local/lib/python3.8/dist-packages/_PyIndi.cpython-38-x86_64-linux-gnu.so | grep -i IUSaveConfigText
U IUSaveConfigText
Same problem here with IUSaveConfigText, I can install the package but I get the error above when importing PyIndi.
I went a little further and saw that actually the symbol IUSaveConfigText exists in _PyIndi.cpython-38-x86_64-linux-gnu.so
$ nm -D /usr/local/lib/python3.8/dist-packages/_PyIndi.cpython-38-x86_64-linux-gnu.so | grep -i IUSaveConfigText
U IUSaveConfigText