User-Agent:       Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML,
like Gecko) Chrome/70.0.3538.102 Safari/537.36
Build Identifier: 

~> calibre
qt5ct: using qt5ct plugin
Traceback (most recent call last):
  File "/usr/bin/calibre", line 20, in <module>
    sys.exit(calibre())
  File "/usr/lib64/calibre/calibre/gui_launch.py", line 73, in calibre
    main(args)
  File "/usr/lib64/calibre/calibre/gui2/main.py", line 567, in main
    gui_debug=gui_debug)
  File "/usr/lib64/calibre/calibre/gui2/main.py", line 391, in run_gui
    app.load_builtin_fonts(scan_for_fonts=True)
  File "/usr/lib64/calibre/calibre/gui2/__init__.py", line 927, in
load_builtin_fonts
    load_builtin_fonts()
  File "/usr/lib64/calibre/calibre/gui2/__init__.py", line 745, in
load_builtin_fonts
    with open(ff, 'rb') as s:
IOError: [Errno 2] No such file or directory:
"/usr/share/calibre/fonts/liberation/It_wasn't_me.ttf"


Unsure what the issue is.  tried forcing a reinstall and switching versions. 
This did not help.  I did not test any version older than one update back, so i
am unsure if there is a regression that appeared since i last had calibre
working.


Reproducible: Always

Steps to Reproduce:
1.open calibre
2.nothing happens
3.open calibre in a terminal
4. Traceback (most recent call last):
  File "/usr/bin/calibre", line 20, in <module>
    sys.exit(calibre())
  File "/usr/lib64/calibre/calibre/gui_launch.py", line 73, in calibre
    main(args)
  File "/usr/lib64/calibre/calibre/gui2/main.py", line 567, in main
    gui_debug=gui_debug)
  File "/usr/lib64/calibre/calibre/gui2/main.py", line 391, in run_gui
    app.load_builtin_fonts(scan_for_fonts=True)
  File "/usr/lib64/calibre/calibre/gui2/__init__.py", line 927, in
load_builtin_fonts
    load_builtin_fonts()
  File "/usr/lib64/calibre/calibre/gui2/__init__.py", line 745, in
load_builtin_fonts
    with open(ff, 'rb') as s:
IOError: [Errno 2] No such file or directory:
"/usr/share/calibre/fonts/liberation/It_wasn't_me.ttf"

Actual Results:  
Calibre didnt open

Expected Results:  
Calibre opening

System Information:
System:    Host: [redacted] Kernel: 4.19.2-1.g8adee6e-default x86_64 bits: 64
Desktop: Xfce 4.12.4
           Distro: openSUSE Leap 15.0
Machine:   Device: server System: Dell product: PowerEdge T410 serial: N/A
           Mobo: Dell model: 0H19HD v: A03 serial: N/A BIOS: Dell v: 1.14.0
date: 05/30/2018
CPU(s):    2 Hexa core Intel Xeon X5660s (-HT-MCP-SMP-) cache: 24576 KB
           clock speeds: max: 1596 MHz 1: 1596 MHz 2: 1596 MHz 3: 1595 MHz 4:
1596 MHz 5: 1596 MHz 6: 1596 MHz
           7: 1596 MHz 8: 1596 MHz 9: 1596 MHz 10: 1596 MHz 11: 1596 MHz 12:
1596 MHz 13: 1596 MHz 14: 1596 MHz
           15: 1596 MHz 16: 1595 MHz 17: 1596 MHz 18: 1595 MHz 19: 1596 MHz 20:
1596 MHz 21: 1596 MHz
           22: 1596 MHz 23: 1596 MHz 24: 1596 MHz
Graphics:  Card: NVIDIA GP108 [GeForce GT 1030]
           Display Server: x11 (X.Org 1.20.3 ) drivers: nvidia (unloaded:
modesetting,fbdev,nv,vesa,nouveau)
           Resolution: 1920x1080@60.00hz, 1920x1080@60.00hz
           OpenGL: renderer: GeForce GT 1030/PCIe/SSE2 version: 4.6.0 NVIDIA
415.13
Audio:     Card-1 NVIDIA GP108 High Definition Audio Controller driver:
snd_hda_intel
           Card-2 Logitech HD Pro Webcam C920 driver: USB Audio
           Card-3 Logitech Clear Chat Comfort USB Headset driver: USB Audio
           Card-4 Logitech V20 portable speakers (USB powered) driver: USB
Audio
           Sound: Advanced Linux Sound Architecture v:
k4.19.2-1.g8adee6e-default
Network:   Card-1: Broadcom NetXtreme II BCM5716 Gigabit Ethernet driver: bnx2
           IF: em1 state: up speed: 1000 Mbps duplex: full mac:
78:2b:cb:34:0f:df
           Card-2: Broadcom NetXtreme II BCM5716 Gigabit Ethernet driver: bnx2
           IF: em2 state: down mac: 78:2b:cb:34:0f:e0
Drives:    HDD Total Size: 5966.2GB (14.2% used)
           ID-1: /dev/sda model: PERC_6/i_Adapter size: 159.5GB
           ID-2: /dev/sdb model: PERC_6/i_Adapter size: 159.5GB
           ID-3: /dev/sdc model: PERC_6/i_Adapter size: 999.7GB
           ID-4: /dev/sdd model: PERC_6/i_Adapter size: 639.5GB
           ID-5: /dev/sde model: ST4000DM000 size: 4000.8GB
           ID-6: USB /dev/sdf model: DataTraveler_2.0 size: 4.0GB
           ID-7: USB /dev/sdg model: Internal_Storage size: 3.3GB
Partition: ID-1: / size: 143G used: 37G (26%) fs: ext4 dev: /dev/sda2
           ID-2: /home size: 147G used: 139G (96%) fs: ext4 dev: /dev/sdb1
           ID-3: swap-1 size: 4.09GB used: 0.00GB (0%) fs: swap dev: /dev/sda1
Sensors:   System Temperatures: cpu: 27.0C mobo: N/A gpu: 35C
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 532 Uptime: 12 days 19:13 Memory: 11339.0/64405.1MB
Client: Shell (bash) inxi: 2.3.40 

Installed packages

calibre-3.27.1-lp150.3.15.1.x86_64

python-2.7.14-lp150.6.3.2.x86_64

python3-3.6.5-lp150.2.3.1.x86_64