Package: python-biopython Severity: serious Tags: stretch
The release policy says that "packages must be buildable within the same release". Your package build-depends on python3-mysqldb which is not in testing.
To make your package releasable either bug 801112 needs to be fixed so that python3-mysqldb can migrate to testing or the build-dependency of your package on python3-mysqldb needs to be eliminated.
