DistutilsNonPEP517Build: version 7.1.7: uses deprecated non-PEP517 build mode, please switch to DISTUTILS_USE_PEP517=...
  DistutilsNonPEP517Build: version 7.1.7-r1: uses deprecated non-PEP517 build mode, please switch to DISTUTILS_USE_PEP517=...
  DistutilsNonPEP517Build: version 7.1.8: uses deprecated non-PEP517 build mode, please switch to DISTUTILS_USE_PEP517=...
  HttpsUrlAvailable: version 7.1.8: HOMEPAGE: HTTPS url available: http://cxx.sourceforge.net -> https://cxx.sourceforge.net/
  RedirectedUrl: version 7.1.8: SRC_URI: permanently redirected: https://downloads.sourceforge.net/cxx/pycxx-7.1.8.tar.gz -> https://downloads.sourceforge.net/project/cxx/CXX/PyCXX%20V7.1.8/pycxx-7.1.8.tar.gz