No module named ‘giscanner._giscanner‘

Traceback (most recent call last):
  File "/usr/bin/g-ir-scanner", line 98, in <module>
    from giscanner.scannermain import scanner_main
  File "/usr/lib/gobject-introspection/giscanner/scannermain.py", line 35, in <module>
    from giscanner.ast import Include, Namespace
  File "/usr/lib/gobject-introspection/giscanner/ast.py", line 29, in <module>
    from .sourcescanner import CTYPE_TYPEDEF, CSYMBOL_TYPE_TYPEDEF
  File "/usr/lib/gobject-introspection/giscanner/sourcescanner.py", line 34, in <module>
    from giscanner._giscanner import SourceScanner as CSourceScanner
ModuleNotFoundError: No module named 'giscanner._giscanner'

解决方案

cd /usr/lib/gobject-introspection/giscanner/
sudo ln -s  _giscanner.cpython-38-x86_64-linux-gnu.so _giscanner.so
sudo ldconfig