No way to deploy files preserving directory structure

Currently there seems to be no way to deploy a file added to a QBS projects preserving its directory structure. For example:

project/
   python/
      file1.py
      file2.py

When I a add files file1.py and file2.py as follows:

files: ["python/file1.py", "python/file2.py"]

They will be deployed as file1.py and file2.py not preserving the directory structure.

A workaround currently is adding the files as follows:

files: ["python"]

This will deploy the whole folder. However tracking the contents of the folder might not work correctly. Furthermore in Qt Creator the folder is displayed as file which is wrong.

I know there is the installDir property and I can use groups to group files in a folder, but this does not work for nested directories.