Something

# DEB_PYTHON_SYSTEM=pycentral
DEB_PYTHON_SYSTEM=pysupport

# Debhelper must be included before python-distutils to use
# dh_python / dh_pycentral / dh_pysupport
include /usr/share/cdbs/1/rules/debhelper.mk
include /usr/share/cdbs/1/class/python-distutils.mk
include /usr/share/cdbs/1/rules/simple-patchsys.mk

# If your package provides eggs, install egg-info directories instead of real eggs
# DEB_PYTHON_INSTALL_ARGS_ALL += --single-version-externally-managed