Arpita,
I have used the python bindings extensively, but AFAIK there is no
documentation specifically for python. The python bindings closely
follow the C API, which is documented here:
http://libvirt.org/html/libvirt-libvirt.html
The function names in python will closely mirror the names listed in
that document. For instance, when you are calling 'dom0.info()' you
are really calling 'virDomainGetInfo' -- you leave out the domain
pointer because you are calling the function on a domain object, and
you leave out the info pointer because in python you can just get
that back as a return value.
The list you're getting from 'info()' is just this structure here:
http://libvirt.org/html/libvirt-libvirt.html#virDomainInfo
If you get stuck, I recommend getting a connection or domain object
inside a python interpreter and calling dir() or help() on that
object. This can reveal other things to play with.
>>> import libvirt
>>> c = libvirt.open(None)
>>> dir(c)
>>> d = c.lookupByID(0)
>>> help(d)
--igor
On Wed, Feb 09, 2011 at 04:48:07PM +0530, arpita k wrote:
> HI,
>
> I am using ubuntu host machine and KVM is present as guest in that
> machine.Two virtual machines are there.I am using Python binding to query on
> the hypervisor and extract the VM related information.
>
> Here is my simple code:
>
>
> #!/*usr*/local/bin/*python
> *
>
> import libvirt
>
> import sys
>
> conn = libvirt.openReadOnly(None)
>
> if conn == None:
>
> print *'Failed to open connection to the hypervisor'
> *
>
> sys.exit(1)
>
> try:
>
> domIds = conn.listDomainsID()
>
> for id in domIds:
>
> dom0 = conn.lookupByID(id)
>
> dom0.info()
>
> print *"Domain 0: id %d running %s"* % (dom0.ID(), dom0.OSType())
>
> print dom0.info()
>
> except:
>
> print *'Failed to find the main domain'
> *
>
> sys.exit()
> The output is :
>
> Domain 0: id 2 running hvm
> [1, 131072L, 131072L, 1, 14921710000000L]
> Domain 0: id 3 running hvm
> [1, 131072L, 131072L, 1, 30880000000L]
>
> Here I am not able to understand these values are represent what type of
> information, which value is representing what resource of host machine.Could
> you please help me to understand how I could find out CPU,VM ,memory related
> information seperately through python binding?.
> I didn't find Python binding Reference in the Libvirt site.Could you help me
> by providing the Reference link for Python binding?
>
> Thanks in Advance!!
>
> Arpita
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