[virt-tools-list] Virtual Machine Manager UI not launching on CentOS 7

[Aravind Kamble]

Hi Pavel,

Thanks for the help. I re-installed virt-manager just as you suggested. It
got installed. But when I try to launch it I am getting following error

Error starting Virtual Machine Manager: cannot import name vmmDetails

Traceback (most recent call last):
  File "/usr/share/virt-manager/virt-manager", line 291, in <module>
    main()
  File "/usr/share/virt-manager/virt-
manager", line 239, in main
    from virtManager.engine import vmmEngine
  File "/usr/share/virt-manager/virtManager/engine.py", line 41, in <module>
    from .details import vmmDetails
ImportError: cannot import name vmmDetails

Can you please help me fixing this?


Thanks,
Aravind

On Thu, Sep 5, 2019 at 7:18 PM Pavel Hrdina <phrdina at redhat.com> wrote:

> On Thu, Sep 05, 2019 at 04:53:23PM +0530, Aravind Kamble wrote:
> > Hi All,
>
> Hi,
>
> >  I am a new user of virt-manager. I installed Virtual Machine Manager
> > (1.5.0-1.el7)on CentOS 7 machine. I was able to launch the UI and work
> with
> > it properly.
> >  I saw latest version of virt-manager 2.2.1 on the site
> > https://virt-manager.org/ . I tried to install it by downloading from
> >
> https://virt-manager.org/download/sources/virt-manager/virt-manager-2.2.1.tar.gz
> >  I unzipped the file and executed the command "python3.6 setup.py
> install".
> > It tried installing but exited out after printing the message "running
> > install_egg_info". Please find the full output attached with this mail.
>
> My first future advice would be never install software into your OS in
> any way than distribution packager, in CentOS case yum/rpm.  It is not
> trivial to remove all the files installed by make install or setup.py
> install as the files are not tracked by anything.
>
> >  After this when I tried to launch Virtual Machine Manager from
> > Applications->System Tools-->Virtual Machine Manager, I don't see it
> > launched.
> >  If I try to launch it via command line I get the following
> >
> >
> > [root at Mordor aravind]# virt-manager
> > Traceback (most recent call last):
> >   File "/usr/share/virt-manager/virt-manager", line 19, in <module>
> >     from virtinst import BuildConfig
> >   File "/usr/share/virt-manager/virtinst/__init__.py", line 42, in
> <module>
> >     _set_libvirt_error_handler()
> >   File "/usr/share/virt-manager/virtinst/__init__.py", line 32, in
> > _set_libvirt_error_handler
> >     import libvirt
> > ModuleNotFoundError: No module named 'libvirt'
> >
> >
> > I do have libvirt installed.
>
> This means that there is missing python libvirt module.  There is only
> libvirt-python package which provides only python 2.7 files and I
> checked that there is no libvirt-python3.6 nor python3.6-libvirt in EPEL
> so you would have to build it by yourself.
>
> virt-manager-1.5.0 is python 2 only and since virt-manager-2.0 we
> switched to python3 only.
>
> > [root at Mordor aravind]# rpm -qa | grep libvirt
> > libvirt-daemon-driver-storage-gluster-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-config-network-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-driver-nodedev-4.5.0-10.el7_6.12.x86_64
> > libvirt-gobject-1.0.0-1.el7.x86_64
> > libvirt-daemon-driver-qemu-4.5.0-10.el7_6.12.x86_64
> > libvirt-client-4.5.0-10.el7_6.12.x86_64
> > libvirt-glib-1.0.0-1.el7.x86_64
> > libvirt-daemon-driver-storage-core-4.5.0-10.el7_6.12.x86_64
> > libvirt-gconfig-1.0.0-1.el7.x86_64
> > libvirt-daemon-driver-lxc-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-driver-storage-disk-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-driver-secret-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-driver-storage-mpath-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-kvm-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-driver-nwfilter-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-driver-storage-iscsi-4.5.0-10.el7_6.12.x86_64
> > libvirt-bash-completion-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-config-nwfilter-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-driver-storage-scsi-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-driver-interface-4.5.0-10.el7_6.12.x86_64
> > libvirt-python-4.5.0-1.el7.x86_64
> > libvirt-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-driver-network-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-driver-storage-4.5.0-10.el7_6.12.x86_64
> > libvirt-libs-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-driver-storage-logical-4.5.0-10.el7_6.12.x86_64
> > libvirt-daemon-driver-storage-rbd-4.5.0-10.el7_6.12.x86_64
> >
> > Please help me restoring the working version of Virtual Machine or making
> > this new version work.
>
> To make the new virt-manager work you would have to build libvirt-python
> bindings for python3.6 by yourself and install it into your system which
> I would not recommend.
>
> To fix your old virt-manager you can try:
>
>     yum reinstall virt-install virt-manager virt-manager-common
>
> which should replace all required files to fix the distribution version.
>
> Pavel
>
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