Appease flake8.

1 job for feature_simulation in 2 minutes and 9 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Build
failed build #1661

00:02:09

 
Name Stage Failure
failed
build Build
    main()
make[2]: *** [Makefile.M2M:43: check] Error 1
make[2]: Leaving directory '/builds/taste/dmt/tests-coverage'
make[1]: *** [Makefile:7: M2M] Error 2
make[1]: Leaving directory '/builds/taste/dmt/tests-coverage'
make: *** [Makefile:36: coverage] Error 1
Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit code 1