> your autopkg tests loops over all *supported* python versions, but you only > build the extension for the *default* python3 version. Try build-depending on > python3-all-dev instead and see that you have extensions built for both 3.6 > and > 3.7. Building in unstable, of course.
But , I already depends on python3-all-dev ??? https://sources.debian.org/src/python-fabio/0.6.0+dfsg-1/debian/control/ I think that this is due to the python3.7 transtion which is ot over for python-fabio. right ?