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Replace getopt() and hand-rolled-parser with argparse.ArgumentParser.
Fix wrong header comments copy-pasted from domstart.py
Signed-off-by: Philipp Hahn <hahn@univention.de>
"is" compares for "points to the same object", which for strings is the
same as comparing the byte sequence itself as Python hashes each strings
to only stores a unique copy of each string.
> examples/nodestats.py:86:43: F632 use ==/!= to compare constant literals (str, bytes, int, float, tuple)
> examples/nodestats.py:91:12: F632 use ==/!= to compare constant literals (str, bytes, int, float, tuple)
> examples/nodestats.py:94:40: F632 use ==/!= to compare constant literals (str, bytes, int, float, tuple)
Use "==" and "!=" for string comparsion.
Signed-off-by: Philipp Hahn <hahn@univention.de>
None should be compared with "is None" instead of "== None", as the
later would invoke a "__cmp__()" method.
Signed-off-by: Philipp Hahn <hahn@univention.de>
The docs refers to XML files that don't exist in the python binding
since it was split off from the main libvirt.git repo.
Fixes#3
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Fix two more cases in examples as
libvirt.open*() does not return None but raises an exception
Fixes: 283e2bc693
Signed-off-by: Philipp Hahn <hahn@univention.de>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
python2 will be end of life by the time of the next
libvirt release. All our supported build targets, including
CentOS7, have a python3 build available.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
VIR_DOMAIN_EVENT_ID_IO_ERROR and VIR_DOMAIN_EVENT_ID_IO_ERROR_REASON
callbacks receive the same 'action' parameter, so also translate that
numeric action to a descriptive text for the first callback.
Signed-off-by: Philipp Hahn <hahn@univention.de>
ERROR_EVENTS translates the numeric 'action' argument to a description,
not the 'reason' argument which already contains a descriptive string
like 'enospc'.
> Traceback (most recent call last):
> File "/usr/lib/python2.7/dist-packages/libvirt.py", line 4661, in _dispatchDomainEventIOErrorReasonCallback
> reason, opaque)
> File "libvirt-python/examples/event-test.py", line 536, in myDomainEventIOErrorReasonCallback
> dom.name(), dom.ID(), srcpath, devalias, action, ERROR_EVENTS[reason]))
> File "libvirt-python/examples/event-test.py", line 474, in __getitem__
> data = self.args[item]
> TypeError: tuple indices must be integers, not str
Fixes: f5928c6711
Signed-off-by: Philipp Hahn <hahn@univention.de>
Registering the same function twice using the old domainEventRegister()
interface would not work, as the function reference is used for
un-registering.
But it is not a problem with the new interface domainEventRegisterAny(),
as that returns a unique ID.
While at it also demonstrate the 'opaque' mechanism.
Signed-off-by: Philipp Hahn <hahn@univention.de>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
If libvirtd terminates while event-test.py has an open connection to it,
it will crash with the following traceback:
> myConnectionCloseCallback: qemu:///session: Error
> Exception in thread libvirtEventLoop:
> Traceback (most recent call last):
> File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
> self.run()
> File "/usr/lib/python2.7/threading.py", line 754, in run
> self.__target(*self.__args, **self.__kwargs)
> File "examples/event-test.py", line 424, in virEventLoopPollRun
> eventLoop.run_loop()
> File "examples/event-test.py", line 242, in run_loop
> self.run_once()
> File "examples/event-test.py", line 187, in run_once
> libvirt.virEventInvokeFreeCallback(opaque)
> AttributeError: 'module' object has no attribute 'virEventInvokeFreeCallback'
>
> libvirt: XML-RPC error : internal error: client socket is closed
> Traceback (most recent call last):
> File "examples/event-test.py", line 872, in <module>
> main()
> File "examples/event-test.py", line 854, in main
> vc.secretEventDeregisterAny(id)
> File "/usr/lib/python2.7/dist-packages/libvirt.py", line 4987, in secretEventDeregisterAny
> if ret == -1: raise libvirtError ('virConnectSecretEventDeregisterAny() failed', conn=self)
> libvirt.libvirtError: internal error: client socket is closed
> Closing qemu:///session
Skip unregistering the event callbacks and closing the connection if the
connection is already broken / closed.
Signed-off-by: Philipp Hahn <hahn@univention.de>
Add new events to prevent crash:
> Traceback (most recent call last):
> File "/usr/lib/python2.7/dist-packages/libvirt.py", line 4601, in _dispatchDomainEventCallbacks
> cb(self, virDomain(self, _obj=dom), event, detail, opaque)
> File "libvirt-python/examples/event-test.py", line 505, in myDomainEventCallback1
> domDetailToString(event, detail)))
> File "libvirt-python/examples/event-test.py", line 484, in domDetailToString
> return domEventStrings[event][detail]
> IndexError: tuple index out of range
Signed-off-by: Philipp Hahn <hahn@univention.de>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1578337
Since libvirt 3.8.0 we have 6 events: defined, undefined,
started, stopped, created, deleted. However, the last two were
missing in a string list that translates libvirt events (int)
into human readable strings.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
This is particularly useful on operating systems that don't ship
Python as part of the base system (eg. FreeBSD) while still working
just as well as it did before on Linux.
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
