Comment 0 for bug 1905665

dstat --output /tmp/foobar

results in a traceback about a missing import:

Traceback (most recent call last):
  File "/usr/bin/dstat", line 2847, in <module>
    main()
  File "/usr/bin/dstat", line 2687, in main
    scheduler.run()
  File "/usr/lib/python3.8/sched.py", line 151, in run
    action(*argument, **kwargs)
  File "/usr/bin/dstat", line 2806, in perform
    oline = oline + o.showcsv() + o.showcsvend(totlist, vislist)
  File "/usr/bin/dstat", line 547, in showcsv
    if isinstance(self.val[name], types.ListType) or isinstance(self.val[name], types.TupleType):
NameError: name 'types' is not defined