Make pylint happy

Fix multiple instances of 'no-else-raise' warning.

qubes/__init__.py

@@ -233,10 +233,9 @@ class property:  # pylint: disable=redefined-builtin,invalid-name
         if self._default is self._NO_DEFAULT:
             raise AttributeError(
                 'property {!r} have no default'.format(self.__name__))
-        elif self._default_function:
+        if self._default_function:
             return self._default_function(instance)
-        else:
-            return self._default
+        return self._default
 
     def __set__(self, instance, value):
         self._enforce_write_once(instance)
@@ -734,9 +733,8 @@ class PropertyHolder(qubes.events.Emitter):
             msg = 'Required property {!r} not set on {!r}'.format(prop, self)
             if hard:
                 raise ValueError(msg)
-            else:
-                # pylint: disable=no-member
-                self.log.fatal(msg)
+            # pylint: disable=no-member
+            self.log.fatal(msg)
 
 
     def close(self):

qubes/firewall.py

@@ -96,7 +96,7 @@ class DstHost(RuleOption):
     def __init__(self, untrusted_value, prefixlen=None):
         if untrusted_value.count('/') > 1:
             raise ValueError('Too many /: ' + untrusted_value)
-        elif not untrusted_value.count('/'):
+        if not untrusted_value.count('/'):
             # add prefix length to bare IP addresses
             try:
                 socket.inet_pton(socket.AF_INET6, untrusted_value)

qubes/storage/__init__.py

@@ -110,7 +110,7 @@ class Volume:
             msg = "snap_on_start specified on {!r} but no volume source set"
             msg = msg.format(name)
             raise StoragePoolException(msg)
-        elif not snap_on_start and source is not None:
+        if not snap_on_start and source is not None:
             msg = "source specified on {!r} but no snap_on_start set"
             msg = msg.format(name)
             raise StoragePoolException(msg)

qubes/utils.py

@@ -150,7 +150,7 @@ def get_entry_point_one(group, name):
     epoints = tuple(pkg_resources.iter_entry_points(group, name))
     if not epoints:
         raise KeyError(name)
-    elif len(epoints) > 1:
+    if len(epoints) > 1:
         raise TypeError(
             'more than 1 implementation of {!r} found: {}'.format(name,
                 ', '.join('{}.{}'.format(ep.module_name, '.'.join(ep.attrs))

qubes/vm/__init__.py

@@ -48,9 +48,8 @@ def validate_name(holder, prop, value):
             raise qubes.exc.QubesPropertyValueError(holder, prop, value,
                 '{} value must be shorter than 32 characters'.format(
                     prop.__name__))
-        else:
-            raise qubes.exc.QubesValueError(
-                'VM name must be shorter than 32 characters')
+        raise qubes.exc.QubesValueError(
+            'VM name must be shorter than 32 characters')
 
     # this regexp does not contain '+'; if it had it, we should specifically
     # disallow 'lost+found' #1440
@@ -58,9 +57,8 @@ def validate_name(holder, prop, value):
         if holder is not None and prop is not None:
             raise qubes.exc.QubesPropertyValueError(holder, prop, value,
                 '{} value contains illegal characters'.format(prop.__name__))
-        else:
-            raise qubes.exc.QubesValueError(
-                'VM name contains illegal characters')
+        raise qubes.exc.QubesValueError(
+            'VM name contains illegal characters')
     if value in ('none', 'default'):
         raise qubes.exc.QubesValueError(
             'VM name cannot be \'none\' nor \'default\'')

qubes/vm/qubesvm.py

@@ -822,7 +822,9 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
         return self.name < other.name
 
     def __xml__(self):
+        # pylint: disable=no-member
         element = super(QubesVM, self).__xml__()
+        # pylint: enable=no-member
 
         if hasattr(self, 'volumes'):
             volume_config_node = lxml.etree.Element('volume-config')
@@ -840,6 +842,7 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
     def on_domain_init_loaded(self, event):
         # pylint: disable=unused-argument
         if not hasattr(self, 'uuid'):
+            # pylint: disable=attribute-defined-outside-init
             self.uuid = uuid.uuid4()
 
         # Initialize VM image storage class;
@@ -1192,8 +1195,7 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
         except libvirt.libvirtError as e:
             if e.get_error_code() == libvirt.VIR_ERR_OPERATION_INVALID:
                 raise qubes.exc.QubesVMNotStartedError(self)
-            else:
-                raise
+            raise
 
         # make sure all shutdown tasks are completed
         yield from self._ensure_shutdown_handled()
@@ -1305,7 +1307,7 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
             # XXX what about autostart?
             raise qubes.exc.QubesVMNotRunningError(
                 self, 'Domain {!r} is paused'.format(self.name))
-        elif not self.is_running():
+        if not self.is_running():
             if not autostart:
                 raise qubes.exc.QubesVMNotRunningError(self)
             yield from self.start(start_guid=gui)
@@ -1518,9 +1520,8 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
                     'see /var/log/xen/console/guest-{}.log for details'.format(
                         self.qrexec_timeout, self.name
                     ))
-            else:
-                raise qubes.exc.QubesVMError(self,
-                    'qrexec-daemon startup failed: ' + err.stderr.decode())
+            raise qubes.exc.QubesVMError(self,
+                'qrexec-daemon startup failed: ' + err.stderr.decode())
 
     @asyncio.coroutine
     def start_qubesdb(self):
@@ -2094,8 +2095,7 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
                 raise qubes.exc.QubesVMError(self,
                     'HVM qubes are not supported on this machine. '
                     'Check BIOS settings for VT-x/AMD-V extensions.')
-            else:
-                raise
+            raise
 
     #
     # workshop -- those are to be reworked later

qubespolicy/__init__.py

@@ -416,7 +416,7 @@ class PolicyAction(object):
             # this should be really rejected by Policy.eval()
             raise AccessDenied(
                 'denied by policy {}:{}'.format(rule.filename, rule.lineno))
-        elif rule.action == Action.ask:
+        if rule.action == Action.ask:
             if targets_for_ask is None:
                 raise AccessDenied(
                     'invalid policy {}:{}'.format(rule.filename, rule.lineno))