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python: support pylint 2.16
Pylint 2.16 adds a few new checks that cause the optional check-tox CI job to fail. 1. The superfluous-parens check seems to be a bit more aggressive, 2. broad-exception-raised is new; it discourages "raise Exception". Fix these minor issues and turn the lights green. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Beraldo Leal <bleal@redhat.com> Message-id: 20230210003147.1309376-2-jsnow@redhat.com Signed-off-by: John Snow <jsnow@redhat.com>
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@ -207,7 +207,7 @@ class AsyncProtocol(Generic[T]):
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logger = logging.getLogger(__name__)
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# Maximum allowable size of read buffer
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_limit = (64 * 1024)
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_limit = 64 * 1024
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# -------------------------
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# Section: Public interface
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@ -198,7 +198,7 @@ class QMPClient(AsyncProtocol[Message], Events):
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logger = logging.getLogger(__name__)
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# Read buffer limit; 10MB like libvirt default
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_limit = (10 * 1024 * 1024)
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_limit = 10 * 1024 * 1024
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# Type alias for pending execute() result items
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_PendingT = Union[Message, ExecInterruptedError]
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@ -155,7 +155,7 @@ class QemuGuestAgentClient:
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def fsfreeze(self, cmd: str) -> object:
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if cmd not in ['status', 'freeze', 'thaw']:
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raise Exception('Invalid command: ' + cmd)
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raise ValueError('Invalid command: ' + cmd)
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# Can be int (freeze, thaw) or GuestFsfreezeStatus (status)
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return getattr(self.qga, 'fsfreeze' + '_' + cmd)()
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@ -167,7 +167,7 @@ class QemuGuestAgentClient:
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def suspend(self, mode: str) -> None:
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if mode not in ['disk', 'ram', 'hybrid']:
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raise Exception('Invalid mode: ' + mode)
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raise ValueError('Invalid mode: ' + mode)
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try:
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getattr(self.qga, 'suspend' + '_' + mode)()
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@ -178,7 +178,7 @@ class QemuGuestAgentClient:
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def shutdown(self, mode: str = 'powerdown') -> None:
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if mode not in ['powerdown', 'halt', 'reboot']:
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raise Exception('Invalid mode: ' + mode)
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raise ValueError('Invalid mode: ' + mode)
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try:
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self.qga.shutdown(mode=mode)
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@ -720,7 +720,7 @@ class Timeout:
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signal.setitimer(signal.ITIMER_REAL, 0)
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return False
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def timeout(self, signum, frame):
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raise Exception(self.errmsg)
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raise TimeoutError(self.errmsg)
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def file_pattern(name):
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return "{0}-{1}".format(os.getpid(), name)
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@ -804,7 +804,7 @@ def remote_filename(path):
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elif imgproto == 'ssh':
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return "ssh://%s@127.0.0.1:22%s" % (os.environ.get('USER'), path)
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else:
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raise Exception("Protocol %s not supported" % (imgproto))
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raise ValueError("Protocol %s not supported" % (imgproto))
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class VM(qtest.QEMUQtestMachine):
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'''A QEMU VM'''
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@ -84,7 +84,7 @@ class TestDirtyBitmapPostcopyMigration(iotests.QMPTestCase):
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e['vm'] = 'SRC'
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for e in self.vm_b_events:
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e['vm'] = 'DST'
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events = (self.vm_a_events + self.vm_b_events)
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events = self.vm_a_events + self.vm_b_events
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events = [(e['timestamp']['seconds'],
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e['timestamp']['microseconds'],
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e['vm'],
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