All reports of package-contains-python-header-in-incorrect-directory for the archive. The extended description of this tag is:
This package ships a header file such as /usr/include/python3.7/foo/bar.h. However, /usr/include/python3.7 is a symlink to python3.7m in libpython3.7-dev.
This may result in silent file overwrites or, depending on the unpacking order (if /usr/include/python3.7 is a directory), separating the headers into two independent trees.
These header files should be shipped in /usr/include/python3.7m instead.
This tag has not been emitted in any package tested by Lintian.