those aren't directly linked to the source package AFAIK so we just need to strip -dbgsym suffix and look for source of that package.
WARNING: No corresponding source package for binary package 'python-pandas-lib-dbgsym' in [sid, main, amd64]
WARNING: No corresponding source package for binary package 'python-sklearn-lib-dbgsym' in [sid, main, amd64]
WARNING: No corresponding source package for binary package 'python-statsmodels-lib-dbgsym' in [sid, main, amd64]
WARNING: No corresponding source package for binary package 'python3-pandas-lib-dbgsym' in [sid, main, amd64]
WARNING: No corresponding source package for binary package 'python3-sklearn-lib-dbgsym' in [sid, main, amd64]