Note: This is a public test instance of Red Hat Bugzilla. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback at bugzilla.redhat.com.
Bug 1626057 - TypeError: 'NoneType' object is not subscriptable
Summary: TypeError: 'NoneType' object is not subscriptable
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: python-blivet
Version: 29
Hardware: All
OS: Linux
unspecified
medium
Target Milestone: ---
Assignee: Blivet Maintenance Team
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:0d8e48b8f369069bbd675d79c14...
Depends On:
Blocks: PPCTracker
TreeView+ depends on / blocked
 
Reported: 2018-09-06 13:22 UTC by Menanteau Guy
Modified: 2019-11-27 18:14 UTC (History)
18 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-11-27 18:12:59 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)
File: anaconda-tb (989.14 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: anaconda.log (16.74 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: dbus.log (3.13 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: dnf.librepo.log (6.99 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: environ (637 bytes, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: hawkey.log (1.87 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: lorax-packages.log (26.11 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: lsblk_output (1.46 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: nmcli_dev_list (1.73 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: os_info (554 bytes, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: program.log (33.22 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: storage.log (47.12 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: syslog (552.44 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: ifcfg.log (2.30 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
File: packaging.log (9.29 KB, text/plain)
2018-09-06 13:23 UTC, Menanteau Guy 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
IBM Linux Technology Center 174717 0 None None None 2019-07-25 15:14:46 UTC

Description Menanteau Guy 2018-09-06 13:22:54 UTC 
Description of problem:
I am trying to test multipath on VM for f29 iso Fedora-Server-dvd-ppc64le-28-20180903.n.0.iso in ppc64le but 
anaconda crashes.
python3-blivet-3.1.0-1 should have corrected bug https://bugzilla.redhat.com/show_bug.cgi?id=1565693 

anaconda crashed with this error.
13:53:59,329 DBG exception: running handleException                            
13:53:59,330 CRT exception: Traceback (most recent call last):                 

  File "/usr/lib64/python3.7/site-packages/pyanaconda/ui/gui/hubs/__init__.py",
line 424, in _on_spoke_clicked
    spoke.refresh()

  File "/usr/lib64/python3.7/site-packages/pyanaconda/ui/gui/spokes/storage.py", line 698, in refresh
    self._add_disk_overview(obj, self.specialized_disks_box)                   

  File "/usr/lib64/python3.7/site-packages/pyanaconda/ui/gui/spokes/storage.py", line 758, in _add_disk_overview
    description = desc[0:6] + "..." + desc[-8:]                                

TypeError: 'NoneType' object is not subscriptable                 

qemu command used:
/usr/bin/qemu-system-ppc64 -name vm54 -enable-kvm -M pseries -smp 4 -m 8G -nographic -nodefaults -monitor stdio -serial pty -device
virtio-net-pci,netdev=net10094,mac=c0:ff:ee:00:00:54 -netdev bridge,br=br0,id=net10094 -cdrom isolef29 -device virtio-scsi-pci,id=scsi -drive if=none,id=hda,file=hd1.qcow2 -device scsi-hd,drive=hda,serial=0002 -drive if=none,id=hdb,file=hd2.qcow2 -device scsi-hd,drive=hdb,serial=0002 -boot d -S


Version-Release number of selected component:
anaconda-29.24.1

The following was filed automatically by anaconda:
anaconda 29.24.1 exception report
Traceback (most recent call first):
  File "/usr/lib64/python3.7/site-packages/pyanaconda/ui/gui/spokes/storage.py", line 758, in _add_disk_overview
    description = desc[0:6] + "..." + desc[-8:]
  File "/usr/lib64/python3.7/site-packages/pyanaconda/ui/gui/spokes/storage.py", line 698, in refresh
    self._add_disk_overview(obj, self.specialized_disks_box)
  File "/usr/lib64/python3.7/site-packages/pyanaconda/ui/gui/hubs/__init__.py", line 424, in _on_spoke_clicked
    spoke.refresh()
TypeError: 'NoneType' object is not subscriptable

Additional info:
addons:         com_redhat_docker, com_redhat_kdump
blivet-gui-utils.log: 
cmdline:        /usr/bin/python3  /sbin/anaconda
cmdline_file:   BOOT_IMAGE=/ppc/ppc64/vmlinuz ro
executable:     /sbin/anaconda
hashmarkername: anaconda
kernel:         4.18.5-300.fc29.ppc64le
product:        Fedora
release:        Cannot get release name.
release_type:   pre-release
type:           anaconda
version:        29
Comment 1 Menanteau Guy 2018-09-06 13:23:01 UTC 
Created attachment 1481306 [details]
File: anaconda-tb
Comment 2 Menanteau Guy 2018-09-06 13:23:03 UTC 
Created attachment 1481307 [details]
File: anaconda.log
Comment 3 Menanteau Guy 2018-09-06 13:23:04 UTC 
Created attachment 1481308 [details]
File: dbus.log
Comment 4 Menanteau Guy 2018-09-06 13:23:06 UTC 
Created attachment 1481309 [details]
File: dnf.librepo.log
Comment 5 Menanteau Guy 2018-09-06 13:23:08 UTC 
Created attachment 1481310 [details]
File: environ
Comment 6 Menanteau Guy 2018-09-06 13:23:09 UTC 
Created attachment 1481311 [details]
File: hawkey.log
Comment 7 Menanteau Guy 2018-09-06 13:23:11 UTC 
Created attachment 1481312 [details]
File: lorax-packages.log
Comment 8 Menanteau Guy 2018-09-06 13:23:13 UTC 
Created attachment 1481313 [details]
File: lsblk_output
Comment 9 Menanteau Guy 2018-09-06 13:23:15 UTC 
Created attachment 1481314 [details]
File: nmcli_dev_list
Comment 10 Menanteau Guy 2018-09-06 13:23:17 UTC 
Created attachment 1481315 [details]
File: os_info
Comment 11 Menanteau Guy 2018-09-06 13:23:18 UTC 
Created attachment 1481316 [details]
File: program.log
Comment 12 Menanteau Guy 2018-09-06 13:23:20 UTC 
Created attachment 1481317 [details]
File: storage.log
Comment 13 Menanteau Guy 2018-09-06 13:23:25 UTC 
Created attachment 1481318 [details]
File: syslog
Comment 14 Menanteau Guy 2018-09-06 13:23:26 UTC 
Created attachment 1481319 [details]
File: ifcfg.log
Comment 15 Menanteau Guy 2018-09-06 13:23:27 UTC 
Created attachment 1481320 [details]
File: packaging.log
Comment 16 Vendula Poncova 2018-09-07 07:59:51 UTC 
From pyanaconda/ui/gui/spokes/storage.py:

if isinstance(disk, MultipathDevice):
  desc = disk.wwn
  description = desc[0:6] + "..." + desc[-8:]

Anaconda fails, because the wwn attribute is set to None. I am not sure if it is a valid value in this case. Let's see what blivet thinks about it. Reassigning.
Comment 17 Dan Horák 2018-09-27 14:18:19 UTC 
Guy, could it be reproduced with similar setup on x86? I guess it should.
Comment 18 Menanteau Guy 2018-09-28 12:25:05 UTC 
same problem on x86-64 using this xml part to simulate the multipath with libvirt

    <disk type='file' device='disk'> 
      <driver name='qemu' type='qcow2' cache='none'/> 
      <source file='/home/menantea/images/vm60-fedora-Server-x86_64-29.qcow2'/> 
      <backingStore/> 
      <target dev='vda' bus='scsi'/> 
      <serial>0002</serial> 
      <address type='drive' controller='0' bus='0' target='0' unit='0'/> 
    </disk> 
    <disk type='file' device='disk'> 
      <driver name='qemu' type='qcow2' cache='none'/> 
      <source file='/home/menantea/images/vm60-fedora-Server-x86_64-29.qcow2'/> 
      <backingStore/> 
      <target dev='vdb' bus='scsi'/> 
      <serial>0002</serial> 
      <address type='drive' controller='0' bus='0' target='0' unit='1'/> 
    </disk>
Comment 19 Ben Cotton 2019-10-31 20:10:17 UTC 
This message is a reminder that Fedora 29 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora 29 on 2019-11-26.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
Fedora 'version' of '29'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 29 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.
Comment 20 germyrinn 2019-11-07 04:32:35 UTC 
In general, the error means that you attempted to index an object that doesn't have that functionality. You are trying to subscript an object which you think is a list or dict, but actually is None. NoneType is the type of the None object which represents a lack of value, for example, a function that does not explicitly return a value will return None. 'NoneType' object is not subscriptable is the one thrown by python when you use the square bracket notation object[key] where an object doesn't define the __getitem__ method . e.g.: http://net-informations.com/python/err/nonetype.htm
Comment 21 Ben Cotton 2019-11-27 18:12:59 UTC 
Fedora 29 changed to end-of-life (EOL) status on 2019-11-26. Fedora 29 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

Thank you for reporting this bug and we are sorry it could not be fixed.
Note You need to log in before you can comment on or make changes to this bug.