[Debian-med-packaging] Bug#903531: python-ruffus FTBFS with Python 3.7 as supported version

[Adrian Bunk]

Source: python-ruffus
Version: 2.6.3+dfsg-5
Severity: serious
Tags: ftbfs

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/python-ruffus.html

...
I: pybuild base:217: python3.7 setup.py clean 
Traceback (most recent call last):
  File "setup.py", line 12, in <module>
    import ruffus.ruffus_version
  File "/build/1st/python-ruffus-2.6.3+dfsg/ruffus/__init__.py", line 28, in <module>
    from .task import Pipeline, Task
  File "/build/1st/python-ruffus-2.6.3+dfsg/ruffus/task.py", line 715, in <module>
    verbose=0)
TypeError: namedtuple() got an unexpected keyword argument 'verbose'
E: pybuild pybuild:336: clean: plugin distutils failed with: exit code=1: python3.7 setup.py clean 
dh_auto_clean: pybuild --clean -i python{version} -p "3.7 3.6" returned exit code 13
make[1]: *** [debian/rules:32: override_dh_auto_clean] Error 25