Exception in plugin --disk-util

[Peter Matulis]

$ sudo apt install dstat

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  dstat
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 55.6 kB of archives.
After this operation, 466 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu focal/universe amd64 dstat all 0.7.4-6 [55.6 kB]
Fetched 55.6 kB in 0s (198 kB/s)
Selecting previously unselected package dstat.
(Reading database ... 73446 files and directories currently installed.)
Preparing to unpack .../archives/dstat_0.7.4-6_all.deb ...
Unpacking dstat (0.7.4-6) ...
Setting up dstat (0.7.4-6) ...
/usr/share/dstat/dstat_mysql_keys.py:41: SyntaxWarning: 'str' object is not callable; perhaps you missed a comma?
  if op.debug > 1: print('%s: exception' (self.filename, e))
/usr/share/dstat/dstat_squid.py:48: SyntaxWarning: 'str' object is not callable; perhaps you missed a comma?
  if op.debug > 1: print('%s: exception' (self.filename, e))
Processing triggers for man-db (2.9.1-1) ...

$ dstat -cd --disk-util --disk-tps

/usr/bin/dstat:2619: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
  import imp
Terminal width too small, trimming output.

* Exception in plugin ['bcache0', 'bcache1', 'bcache2', 'bcache3', 'loop0', 'loop1', 'loop2', 'loop3', 'loop4', 'loop5', 'loop6', 'loop7', 'nbd0', 'nbd1', 'nbd10', 'nbd11', '
nbd12', 'nbd13', 'nbd14', 'nbd15', 'nbd2', 'nbd3', 'nbd4', 'nbd5', 'nbd6', 'nbd7', 'nbd8', 'nbd9', 'nvme0n1', 'sda', 'sdb', 'sdc', 'sdd']
'tot_ticks'
--total-cpu-usage-- -dsk/total- -dsk/total->
usr sys idl wai stl| read writ|#read #writ>
  0 0 99 1 0| 110k 9609k| 8 172 >
* Exception in plugin ['bcache0', 'bcache1', 'bcache2', 'bcache3', 'loop0', 'loop1', 'loop2', 'loop3', 'loop4', 'loop5', 'loop6', 'loop7', 'nbd0', 'nbd1', 'nbd10', 'nbd11', '
nbd12', 'nbd13', 'nbd14', 'nbd15', 'nbd2', 'nbd3', 'nbd4', 'nbd5', 'nbd6', 'nbd7', 'nbd8', 'nbd9', 'nvme0n1', 'sda', 'sdb', 'sdc', 'sdd']
'tot_ticks'
.
.
.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: dstat 0.7.4-6
ProcVersionSignature: User Name 5.4.0-33.37-generic 5.4.34
Uname: Linux 5.4.0-33-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.2
Architecture: amd64
CasperMD5CheckResult: skip
Date: Sat May 30 00:22:44 2020
Dependencies: python3-six 1.14.0-2
PackageArchitecture: all
ProcEnviron:
 TERM=tmux-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: dstat
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.