All reports of python-depends-but-no-python-helper for the archive. The extended description of this tag is:

The source package declares a dependency on ${python:Depends} in the given binary package's debian/control entry. However, debian/rules doesn't call any helper that would generate this substitution variable.

When using debhelper compatibility level below 9, dh will call dh_pysupport by default if it's installed, but the build dependency on python-support is still necessary.

Severity: serious, Certainty: possible

Check: debhelper, Type: source

This tag has not been emitted in any package tested by Lintian.