Yes it is. Looks like a Python 2 code path is being used while running
with Python 3.
$ hp-setup --debug
HP Linux Imaging and Printing System (ver. 3.19.12)
Printer/Fax Setup Utility ver. 9.0
Copyright (c) 2001-18 HP Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.
hp-setup[18526]: debug: param=
hp-setup[18526]: debug: selected_device_name=None
hp-setup[18526]: debug: Using PyQt5
hp-setup[18526]: debug: Sys.argv=['/usr/bin/hp-setup', '--debug']
printer_name=None param= jd_port=1 device_uri=None remove=False
hp-setup[18526]: debug: Starting GUI Event Loop...
Searching... (bus=net, timeout=5, ttl=4, search=(None) desc=0, method=slp)
hp-setup[18526]: debug: : 01 07 01 ec 00 00 65 6e 00 03 df 4c 00 00 01 dc
28 78 2d 68 70 2d 76 65 72 3d 30 31 29 28 78 2d
..en...L(x-hp-ver=01)(x-
hp-setup[18526]: debug: 0020: 68 70 2d 70 72 6f 64 5f 69 64 3d 54 36 42 38 32
41 29 28 78 2d 68 70 2d 6d 61 63 3d 39 30 33 32
hp-prod_id=T6B82A)(x-hp-mac=9032
hp-setup[18526]: debug: 0040: 34 42 42 32 35 35 31 44 29 28 78 2d 68 70 2d 67
75 69 64 3d 31 30 36 32 45 35 41 42 35 42 46 39
4BB2551D)(x-hp-guid=1062E5AB5BF9
hp-setup[18526]: debug: 0060: 29 28 78 2d 68 70 2d 6e 75 6d 5f 70 6f 72 74 3d
30 31 29 28 78 2d 68 70 2d 69 70 3d 31 39 32 2e
)(x-hp-num_port=01)(x-hp-ip=192.
hp-setup[18526]: debug: 0080: 31 36 38 2e 30 30 30 2e 30 32 35 29 28 78 2d 68
70 2d 68 6e 3d 4e 50 49 41 42 35 42 46 39 29 28
168.000.025)(x-hp-hn=NPIAB5BF9)(
hp-setup[18526]: debug: 00a0: 78 2d 68 70 2d 70 31 3d 4d 46 47 3a 48 50 3b 43
4d 44 3a 50 4a 4c 2c 50 4d 4c 2c 50 43 4c 58 4c
x-hp-p1=MFG:HP;CMD:PJL,PML,PCLXL
hp-setup[18526]: debug: 00c0: 2c 50 57 47 5f 52 41 53 54 45 52 2c 55 52 50 2c
50 43 4c 2c 50 44 46 2c 50 4f 53 54 53 43 52 49
,PWG_RASTER,URP,PCL,PDF,POSTSCRI
hp-setup[18526]: debug: 00e0: 50 54 3b 4d 44 4c 3a 48 50 20 43 6f 6c 6f 72 4c
61 73 65 72 4a 65 74 20 4d 46 50 20 4d 32 37 38 PT;MDL:HP ColorLaserJet MFP
M278
hp-setup[18526]: debug: 0100: 2d 4d 32 38 31 3b 43 4c 53 3a 50 52 49 4e 54 45
52 3b 44 45 53 3a 48 50 20 43 6f 6c 6f 72 20 4c -M281;CLS:PRINTER;DES:HP Color
L
hp-setup[18526]: debug: 0120: 61 73 65 72 4a 65 74 20 4d 46 50 20 4d 32 38 31
66 64 77 3b 4d 45 4d 3a 4d 45 4d 3d 32 31 33 4d aserJet MFP
M281fdw;MEM:MEM=213M
hp-setup[18526]: debug: 0140: 42 3b 50 52 4e 3a 54 36 42 38 32 41 3b 43 4f 4d
4d 45 4e 54 3a 52 45 53 3d 36 30 30 78 38 3b 4c
B;PRN:T6B82A;COMMENT:RES=600x8;L
hp-setup[18526]: debug: 0160: 45 44 4d 44 49 53 3a 55 53 42 23 66 66 23 30 34
23 30 31 3b 43 49 44 3a 48 50 4c 4a 50 44 4c 56
EDMDIS:USB#ff#04#01;CID:HPLJPDLV
hp-setup[18526]: debug: 0180: 31 3b 49 50 50 2d 45 3a 46 46 2d 30 34 2d 30 31
2c 46 46 2d 30 34 2d 30 31 2c 46 46 2d 30 39 2d
1;IPP-E:FF-04-01,FF-04-01,FF-09-
hp-setup[18526]: debug: 01a0: 30 31 2c 46 46 2d 30 39 2d 30 31 3b 65 53 43 4c
3a 46 46 2d 30 34 2d 30 31 2c 46 46 2d 30 34 2d
01,FF-09-01;eSCL:FF-04-01,FF-04-
hp-setup[18526]: debug: 01c0: 30 31 2c 46 46 2d 30 39 2d 30 31 2c 46 46 2d 30
39 2d 30 31 3b 4d 43 54 3a 4d 46 3b 4d 43 4c 3a
01,FF-09-01,FF-09-01;MCT:MF;MCL:
hp-setup[18526]: debug: 01e0: 44 4c 3b 4d 43 56 3a 32 2e 30 3b 29
DL;MCV:2.0;)
hp-setup[18526]: debug: Found device: {'num_devices': 1, 'num_ports': 1,
'product_id': 'T6B82A', 'status_code': 0, 'device2': '0', 'device3': '0',
'note': '', 'device1':
'MFG:HP;CMD:PJL,PML,PCLXL,PWG_RASTER,URP,PCL,PDF,POSTSCRIPT;MDL:HP
ColorLaserJet MFP M278-M281;CLS:PRINTER;DES:HP Color LaserJet MFP
M281fdw;MEM:MEM=213MB;PRN:T6B82A;COMMENT:RES=600x8;LEDMDIS:USB#ff#04#01;CID:HPLJPDLV1;IPP-E:FF-04-01,FF-04-01,FF-09-01,FF-09-01;eSCL:FF-04-01,FF-04-01,FF-09-01,FF-09-01;MCT:MF;MCL:DL;MCV:2.0;',
'mac': '90324BB2551D', 'ip': '192.168.000.025', 'hn': 'NPIAB5BF9'}
hp-setup[18526]: debug: Cache miss: hp_colorlaserjet_mfp_m278-m281
hp-setup[18526]: debug: Reading file: /usr/share/hplip/data/models/models.dat
hp-setup[18526]: debug: Searching for section [hp_colorlaserjet_mfp_m278-m281]
in file /usr/share/hplip/data/models/models.dat
hp-setup[18526]: debug: Found section [hp_colorlaserjet_mfp_m278-m281] in file
/usr/share/hplip/data/models/models.dat
hp-setup[18526]: debug: Unable to open file /var/lib/hp/hplip.state for reading.
hp-setup[18526]: debug: Exception: 4 (Unknown/invalid device-uri field)
hp-setup[18526]: debug: {}
hp-setup[18526]: debug: Exception: 4 (Unknown/invalid device-uri field)
hp-setup[18526]: debug: HP_ColorLaserJet_MFP_M278-M281
hp-setup[18526]: debug: (CUPS 1.2.x) Getting list of PPDs using CUPS_GET_PPDS...
hp-setup[18526]: debug: CUPS PPD base path = /usr/share/cups/model
hp-setup[18526]: debug: Foomatic PPD base path = /usr/share/ppd/hplip
hp-setup[18526]: debug: Matching PPD list to model
color_laserjet_mfp_m278-m281...
hp-setup[18526]: debug: []
hp-setup[18526]: debug:
