Source: lsb Version: 9.20150826 Severity: normal Please change the python3-all-dev build dep to python3-all or python3. The use of python3-all-dev makes it appear on the list of packages needing to be rebuilt for the upcoming python3.5 transition [1], while that's not actually required since there is no arch specific content. Scott K [1] https://release.debian.org/transitions/html/python3.5.html