Fix flake8 H404 errors

Fix H404 error and start enforcing it.

Trivialfix

Change-Id: Iaa6fb4f1f07dee32a944259ab65204360d9db7ea

neutron/agent/l3/extensions/qos/fip.py

@@ -30,7 +30,8 @@ LOG = logging.getLogger(__name__)
 
 class RouterFipRateLimitMaps(qos_base.RateLimitMaps):
     def __init__(self):
-        """
+        """Initialize RouterFipRateLimitMaps
+
         The router_floating_ips will be:
             router_floating_ips = {
                 router_id_1: set(fip1, fip2),

neutron/agent/linux/dhcp.py

@@ -760,7 +760,8 @@ class Dnsmasq(DhcpLocalProcess):
         return leases
 
     def _read_leases_file_leases(self, filename, ip_version=None):
-        """
+        """Read dnsmasq dhcp leases file
+
         Read information from leases file, which is needed to pass to
         dhcp_release6 command line utility if some of these leases are not
         needed anymore

neutron/agent/linux/utils.py

@@ -257,8 +257,7 @@ def remove_conf_files(cfg_root, uuid):
 
 
 def get_root_helper_child_pid(pid, expected_cmd, run_as_root=False):
-    """
-    Get the first non root_helper child pid in the process hierarchy.
+    """Get the first non root_helper child pid in the process hierarchy.
 
     If root helper was used, two or more processes would be created:
 

neutron/agent/ovsdb/native/connection.py

@@ -31,8 +31,8 @@ Connection = moves.moved_class(_connection.Connection, 'Connection', __name__)
 
 
 def configure_ssl_conn():
-    """
-    Configures required settings for an SSL based OVSDB client connection
+    """Configures required settings for an SSL based OVSDB client connection
+
     :return: None
     """
 

neutron/cmd/ovs_cleanup.py

@@ -48,7 +48,8 @@ def setup_conf():
 
 
 def get_bridge_deletable_ports(br):
-    """
+    """Get bridge deletable ports
+
     Return a list of OVS Bridge ports, excluding the ports who should not be
     cleaned. such ports are tagged with the 'skip_cleanup' key in external_ids.
     """

neutron/common/utils.py

@@ -295,7 +295,8 @@ def _hex_format(port, mask=0):
 
 
 def _gen_rules_port_min(port_min, top_bit):
-    """
+    """Generate rules for port_min
+
     Encode a port range range(port_min, (port_min | (top_bit - 1)) + 1) into
     a set of bit value/masks.
     """
@@ -376,7 +377,8 @@ def _gen_rules_port_min(port_min, top_bit):
 
 
 def _gen_rules_port_max(port_max, top_bit):
-    """
+    """Generate rules for port_max
+
     Encode a port range range(port_max & ~(top_bit - 1), port_max + 1) into
     a set of bit value/masks.
     """
@@ -624,8 +626,7 @@ def transaction_guard(f):
 
 
 def wait_until_true(predicate, timeout=60, sleep=1, exception=None):
-    """
-    Wait until callable predicate is evaluated as True
+    """Wait until callable predicate is evaluated as True
 
     :param predicate: Callable deciding whether waiting should continue.
     Best practice is to instantiate predicate with functools.partial()
@@ -662,7 +663,8 @@ class _AuthenticBase(object):
 
 
 class AuthenticEUI(_AuthenticBase, netaddr.EUI):
-    '''
+    '''AuthenticEUI class
+
     This class retains the format of the MAC address string passed during
     initialization.
 
@@ -672,7 +674,8 @@ class AuthenticEUI(_AuthenticBase, netaddr.EUI):
 
 
 class AuthenticIPNetwork(_AuthenticBase, netaddr.IPNetwork):
-    '''
+    '''AuthenticIPNetwork class
+
     This class retains the format of the IP network string passed during
     initialization.
 

neutron/db/l3_dvr_db.py

@@ -287,8 +287,7 @@ class DVRResourceOperationHandler(object):
     def _delete_dvr_internal_ports(self, event, trigger, resource,
                                    context, router, network_id,
                                    new_network_id, **kwargs):
-        """
-        GW port AFTER_DELETE event handler to cleanup DVR ports.
+        """GW port AFTER_DELETE event handler to cleanup DVR ports.
 
         This event is emitted when a router gateway port is being deleted,
         so go ahead and delete the csnat ports and the floatingip

neutron/db/migration/alembic_migrations/versions/newton/contract/7d9d8eeec6ad_rename_tenant_to_project.py

@@ -48,8 +48,7 @@ def get_inspector():
 
 
 def get_tables():
-    """
-    Returns hardcoded list of tables which have ``tenant_id`` column.
+    """Returns hardcoded list of tables which have ``tenant_id`` column.
 
     DB head can be changed. To prevent possible problems, when models will be
     updated, return hardcoded list of tables, up-to-date for this day.

neutron/db/migration/alembic_migrations/versions/newton/contract/8fd3918ef6f4_add_segment_host_mapping.py

@@ -46,8 +46,7 @@ def upgrade():
 
 
 def contract_creation_exceptions():
-    """
-    Return create exceptions.
+    """Return create exceptions.
 
     These elements depend on the networksegments table which was renamed
     in the contract branch.

neutron/db/migration/alembic_migrations/versions/newton/contract/97c25b0d2353_add_name_desc.py

@@ -87,8 +87,7 @@ def upgrade():
 
 
 def contract_creation_exceptions():
-    """
-    Return create exceptions.
+    """Return create exceptions.
 
     These elements depend on the networksegments table which are added
     in the contract branch.

neutron/db/migration/alembic_migrations/versions/ocata/expand/a9c43481023c_extend_ml2_port_bindings.py

@@ -60,7 +60,8 @@ def upgrade():
 
 
 def expand_drop_exceptions():
-    """
+    """Drop and extend the ML2 port bindings key contraint
+
     Drop the existing primary key constraint and then extend it to include
     host as the primary key to support multiple bindings for the same port.
     This is needed to use drop in expand migration to pass test_branches.

neutron/db/migration/alembic_migrations/versions/pike/expand/2b42d90729da_qos_add_direction_to_bw_limit_rule_table.py

@@ -58,7 +58,8 @@ def upgrade():
 
 
 def expand_drop_exceptions():
-    """
+    """Drop and replace the QoS policy foreign key contraint
+
     Drop the existing QoS policy foreign key uniq constraint and then replace
     it with new unique constraint for pair (policy_id, direction).
 

neutron/db/migration/cli.py

@@ -494,7 +494,8 @@ def _get_head_file_path(config):
 
 
 def _get_heads_file_path(config):
-    '''
+    '''Get heads file path
+
     Return the path of the file that was once used to maintain the list of
     latest heads.
     '''
@@ -504,18 +505,14 @@ def _get_heads_file_path(config):
 
 
 def _get_contract_head_file_path(config):
-    '''
-    Return the path of the file that is used to maintain contract head
-    '''
+    '''Return the path of the file that is used to maintain contract head'''
     return os.path.join(
         _get_root_versions_dir(config),
         CONTRACT_HEAD_FILENAME)
 
 
 def _get_expand_head_file_path(config):
-    '''
-    Return the path of the file that is used to maintain expand head
-    '''
+    '''Return the path of the file that is used to maintain expand head'''
     return os.path.join(
         _get_root_versions_dir(config),
         EXPAND_HEAD_FILENAME)

neutron/ipam/requests.py

@@ -127,7 +127,8 @@ class AnySubnetRequest(SubnetRequest):
 
     def __init__(self, tenant_id, subnet_id, version, prefixlen,
                  gateway_ip=None, allocation_pools=None):
-        """
+        """Initialize AnySubnetRequest
+
         :param version: Either constants.IPv4 or constants.IPv6
         :param prefixlen: The prefix len requested.  Must be within the min and
             max allowed.
@@ -158,7 +159,8 @@ class SpecificSubnetRequest(SubnetRequest):
     """
     def __init__(self, tenant_id, subnet_id, subnet_cidr,
                  gateway_ip=None, allocation_pools=None):
-        """
+        """Initialize SpecificSubnetRequest
+
         :param subnet: The subnet requested.  Can be IPv4 or IPv6.  However,
             when IPAM tries to fulfill this request, the IP version must match
             the version of the address scope being used.
@@ -190,7 +192,8 @@ class AddressRequest(object):
 class SpecificAddressRequest(AddressRequest):
     """For requesting a specified address from IPAM"""
     def __init__(self, address):
-        """
+        """Initialize SpecificAddressRequest
+
         :param address: The address being requested
         :type address: A netaddr.IPAddress or convertible to one.
         """
@@ -226,7 +229,8 @@ class AutomaticAddressRequest(SpecificAddressRequest):
     _address_generators = {EUI64: _generate_eui64_address}
 
     def __init__(self, address_type=EUI64, **kwargs):
-        """
+        """Initialize AutomaticAddressRequest
+
         This constructor builds an automatic IP address. Parameter needed for
         generating it can be passed as optional keyword arguments.
 
@@ -256,7 +260,8 @@ class AddressRequestFactory(object):
 
     @classmethod
     def get_request(cls, context, port, ip_dict):
-        """
+        """Initialize AddressRequestFactory
+
         :param context: context (not used here, but can be used in sub-classes)
         :param port: port dict (not used here, but can be used in sub-classes)
         :param ip_dict: dict that can contain 'ip_address', 'mac' and

neutron/objects/base.py

@@ -65,12 +65,14 @@ def register_filter_hook_on_model(model, filter_name):
 
 
 class Pager(object):
-    '''
+    '''Pager class
+
     This class represents a pager object. It is consumed by get_objects to
     specify sorting and pagination criteria.
     '''
     def __init__(self, sorts=None, limit=None, page_reverse=None, marker=None):
-        '''
+        '''Initialize
+
         :param sorts: A list of (key, direction) tuples.
                       direction: True == ASC, False == DESC
         :param limit: maximum number of items to return
@@ -447,7 +449,8 @@ class NeutronDbObject(NeutronObject):
 
     @classmethod
     def modify_fields_to_db(cls, fields):
-        """
+        """Modify the fields before data is inserted into DB.
+
         This method enables to modify the fields and its
         content before data is inserted into DB.
 
@@ -537,7 +540,8 @@ class NeutronDbObject(NeutronObject):
 
     @classmethod
     def get_object(cls, context, **kwargs):
-        """
+        """Fetch a single object
+
         Return the first result of given context or None if the result doesn't
         contain any row. Next, convert it to a versioned object.
 
@@ -561,7 +565,8 @@ class NeutronDbObject(NeutronObject):
     @classmethod
     def get_objects(cls, context, _pager=None, validate_filters=True,
                     **kwargs):
-        """
+        """Fetch a list of objects
+
         Fetch all results from DB and convert them to versioned objects.
 
         :param context:
@@ -581,8 +586,7 @@ class NeutronDbObject(NeutronObject):
 
     @classmethod
     def update_object(cls, context, values, validate_filters=True, **kwargs):
-        """
-        Update an object that match filtering criteria from DB.
+        """Update an object that match filtering criteria from DB.
 
         :param context:
         :param values: multiple keys to update in matching objects
@@ -610,8 +614,7 @@ class NeutronDbObject(NeutronObject):
 
     @classmethod
     def update_objects(cls, context, values, validate_filters=True, **kwargs):
-        """
-        Update objects that match filtering criteria from DB.
+        """Update objects that match filtering criteria from DB.
 
         :param context:
         :param values: multiple keys to update in matching objects
@@ -636,8 +639,7 @@ class NeutronDbObject(NeutronObject):
 
     @classmethod
     def delete_objects(cls, context, validate_filters=True, **kwargs):
-        """
-        Delete objects that match filtering criteria from DB.
+        """Delete objects that match filtering criteria from DB.
 
         :param context:
         :param validate_filters: Raises an error in case of passing an unknown
@@ -701,7 +703,8 @@ class NeutronDbObject(NeutronObject):
         return fields
 
     def load_synthetic_db_fields(self, db_obj=None):
-        """
+        """Load synthetic DB fields
+
         Load the synthetic fields that are stored in a different table from the
         main object.
 
@@ -816,8 +819,7 @@ class NeutronDbObject(NeutronObject):
 
     @classmethod
     def count(cls, context, validate_filters=True, **kwargs):
-        """
-        Count the number of objects matching filtering criteria.
+        """Count the number of objects matching filtering criteria.
 
         :param context:
         :param validate_filters: Raises an error in case of passing an unknown
@@ -833,8 +835,7 @@ class NeutronDbObject(NeutronObject):
 
     @classmethod
     def objects_exist(cls, context, validate_filters=True, **kwargs):
-        """
-        Check if objects are present in DB.
+        """Check if objects are present in DB.
 
         :param context:
         :param validate_filters: Raises an error in case of passing an unknown

neutron/plugins/ml2/drivers/openvswitch/agent/ovs_dvr_neutron_agent.py

@@ -110,9 +110,7 @@ class OVSPort(object):
 
 @profiler.trace_cls("ovs_dvr_agent")
 class OVSDVRNeutronAgent(object):
-    '''
-    Implements OVS-based DVR(Distributed Virtual Router), for overlay networks.
-    '''
+    '''Implements OVS-based DVR (Distributed Virtual Router) agent'''
     # history
     #   1.0 Initial version
 

neutron/plugins/ml2/plugin.py

@@ -1744,7 +1744,8 @@ class Ml2Plugin(db_base_plugin_v2.NeutronDbPluginV2,
 
     def update_port_status(self, context, port_id, status, host=None,
                            network=None):
-        """
+        """Update port status
+
         Returns port_id (non-truncated uuid) if the port exists.
         Otherwise returns None.
         'network' is deprecated and has no effect

neutron/services/logapi/common/validators.py

@@ -101,7 +101,8 @@ class ResourceValidateRequest(object):
         return self.validate_methods
 
     def validate_request(self, context, log_data):
-        """
+        """Validate request
+
         This method will get validated method according to resource_type. An
         InvalidLogResourceType exception will be raised if there is no logging
         driver that supports resource_type as logging resource. In addition,

neutron/services/trunk/rules.py

@@ -228,7 +228,8 @@ class SubPortsValidator(object):
         return subport_mtus
 
     def _get_port_mtu(self, context, port_id):
-        """
+        """Get port MTU
+
         Return MTU for the network where the given port belongs to.
         If the network or port cannot be obtained, or if MTU is not defined,
         returns None.

neutron/tests/base.py

@@ -119,9 +119,7 @@ def get_rootwrap_daemon_cmd():
 
 class AttributeDict(dict):
 
-    """
-    Provide attribute access (dict.key) to dictionary values.
-    """
+    """Provide attribute access (dict.key) to dictionary values."""
 
     def __getattr__(self, name):
         """Allow attribute access for all keys in the dict."""

neutron/tests/common/net_helpers.py

@@ -423,7 +423,8 @@ class NetcatTester(object):
     def __init__(self, client_namespace, server_namespace, address,
                  dst_port, protocol, server_address=None, src_port=None):
 
-        """
+        """Initialize NetcatTester
+
         Tool for testing connectivity on transport layer using netcat
         executable.
 

neutron/tests/fullstack/resources/environment.py

@@ -324,7 +324,8 @@ class Environment(fixtures.Fixture):
     """
 
     def __init__(self, env_desc, hosts_desc):
-        """
+        """Initialize Environment
+
         :param env_desc: An EnvironmentDescription instance.
         :param hosts_desc: A list of HostDescription instances.
         """

neutron/tests/functional/agent/linux/helpers.py

@@ -61,9 +61,7 @@ class AdminDirFixture(fixtures.Fixture):
 
 
 class SleepyProcessFixture(fixtures.Fixture):
-    """
-    Process fixture that performs time.sleep for the given number of seconds.
-    """
+    """Process fixture to perform time.sleep for a given number of seconds."""
 
     def __init__(self, timeout=60):
         super(SleepyProcessFixture, self).__init__()

neutron/tests/functional/api/test_policies.py

@@ -27,7 +27,8 @@ TEST_PATH = os.path.dirname(os.path.abspath(__file__))
 
 
 class APIPolicyTestCase(base.BaseTestCase):
-    """
+    """Base class for API policy tests
+
     Tests for REST API policy checks. Ideally this would be done against an
     environment with an instantiated plugin, but there appears to be problems
     with instantiating a plugin against an sqlite environment and as yet, there
@@ -59,7 +60,8 @@ class APIPolicyTestCase(base.BaseTestCase):
         return policy.check(context, 'get_network', self._network_definition())
 
     def test_premature_loading(self):
-        """
+        """Test premature policy loading
+
         Verifies that loading policies by way of admin context before
         populating extensions and extending the resource map results in
         networks with router:external is true being invisible to regular
@@ -74,7 +76,8 @@ class APIPolicyTestCase(base.BaseTestCase):
         self.assertFalse(self._check_external_router_policy(tenant_context))
 
     def test_proper_load_order(self):
-        """
+        """Test proper policy load order
+
         Verifies that loading policies by way of admin context after
         populating extensions and extending the resource map results in
         networks with router:external are visible to regular tenants.

neutron/tests/functional/base.py

@@ -36,8 +36,7 @@ class BaseLoggingTestCase(base.BaseTestCase):
 
 
 class BaseSudoTestCase(BaseLoggingTestCase):
-    """
-    Base class for tests requiring invocation of commands via a root helper.
+    """Base class for tests requiring invocation of commands via a root helper.
 
     This class skips (during setUp) its tests unless sudo is enabled, ie:
     OS_SUDO_TESTING is set to '1' or 'True' in the test execution environment.

neutron/tests/functional/cmd/process_spawn.py

@@ -67,8 +67,7 @@ OPTS = [
 
 
 class ProcessSpawn(daemon.Daemon):
-    """
-    This class is part of the functional test of the netns_cleanup module.
+    """This class is part of the functional test of the netns_cleanup module.
 
     It allows spawning processes that listen on random ports either on
     tcp(6), udp(6) or unix sockets. Also it allows handling or ignoring

neutron/tests/functional/cmd/test_netns_cleanup.py

@@ -87,8 +87,7 @@ class NetnsCleanupTest(base.BaseSudoTestCase):
 
     @staticmethod
     def _launch_processes(namespaces):
-        """
-        Launch processes in the specified namespaces.
+        """Launch processes in the specified namespaces.
 
         This function will spawn processes inside the given namespaces:
                 - 6 processes listening on tcp ports (parent + 5 children)

neutron/tests/functional/db/test_ipam.py

@@ -36,9 +36,7 @@ load_tests = testlib_api.module_load_tests
 
 
 class IpamTestCase(testlib_api.SqlTestCase):
-    """
-    Base class for tests that aim to test ip allocation.
-    """
+    """Base class for tests that aim to test ip allocation."""
     def setUp(self):
         super(IpamTestCase, self).setUp()
         cfg.CONF.set_override('notify_nova_on_port_status_changes', False)

neutron/tests/functional/pecan_wsgi/__init__.py

@@ -25,7 +25,8 @@ __all__ = ['FunctionalTest']
 
 
 class FunctionalTest(unittest2.TestCase):
-    """
+    """Pecan wsgi functional test base class
+
     Used for functional tests where you need to test your
     literal application and its integration with the framework.
     """

neutron/tests/unit/agent/l3/test_agent.py

@@ -823,8 +823,7 @@ class TestBasicRouterOperations(BasicRouterOperationsFramework):
 
     def _test_ext_gw_updated_dvr_edge_router(self, host_match,
                                              snat_hosted_before=True):
-        """
-        Helper to test external gw update for edge router on dvr_snat agent
+        """Helper to test external gw update for edge router on dvr_snat agent
 
         :param host_match: True if new gw host should be the same as agent host
         :param snat_hosted_before: True if agent has already been hosting

neutron/tests/unit/db/test_db_base_plugin_v2.py

@@ -780,9 +780,7 @@ class NeutronDbPluginV2TestCase(testlib_api.WebTestCase):
         self.assertEqual(expected_res, [n['id'] for n in item_res])
 
     def _compare_resource(self, observed_res, expected_res, res_name):
-        '''
-           Compare the observed and expected resources (ie compare subnets)
-        '''
+        '''Compare the observed and expected resources (ie compare subnets)'''
         for k in expected_res:
             self.assertIn(k, observed_res[res_name])
             if isinstance(expected_res[k], list):

neutron/tests/unit/objects/test_base.py

@@ -282,8 +282,8 @@ class FakeNeutronObjectUniqueKey(base.NeutronDbObject):
 
 @base.NeutronObjectRegistry.register_if(False)
 class FakeNeutronObjectRenamedField(base.NeutronDbObject):
-    """
-    Testing renaming the parameter from DB to NeutronDbObject
+    """Testing renaming the parameter from DB to NeutronDbObject
+
     For tests:
         - db fields: id, field_db, field2
         - object: id, field_ovo, field2

neutron/tests/unit/plugins/ml2/drivers/openvswitch/agent/test_ovs_neutron_agent.py

@@ -2282,7 +2282,8 @@ class TestOvsNeutronAgent(object):
         self.assertEqual([], ofport_changed_ports)
 
     def test__setup_tunnel_port_while_new_mapping_is_added(self):
-        """
+        """Test setup_tunnel_port while adding a new mapping
+
         Test that _setup_tunnel_port doesn't fail if new vlan mapping is
         added in a different coroutine while iterating over existing mappings.
         See bug 1449944 for more info.

tox.ini

@@ -155,7 +155,6 @@ commands = sphinx-build -W -b linkcheck doc/source doc/build/linkcheck
 # E125 continuation line does not distinguish itself from next logical line
 # E126 continuation line over-indented for hanging indent
 # E128 continuation line under-indented for visual indent
-# H404 multi line docstring should start with a summary
 # H405 multi line docstring summary not separated with an empty line
 # N530 direct neutron imports not allowed
 # TODO(ihrachys) figure out what to do with N534
@@ -163,7 +162,7 @@ commands = sphinx-build -W -b linkcheck doc/source doc/build/linkcheck
 # TODO(amotoki) check the following new rules should be fixed or ignored
 # E731 do not assign a lambda expression, use a def
 # W504 line break after binary operator
-ignore = E125,E126,E128,E731,H404,H405,N530,N534,W504
+ignore = E125,E126,E128,E731,H405,N530,N534,W504
 # H106: Don't put vim configuration in source files
 # H203: Use assertIs(Not)None to check for None
 # H204: Use assert(Not)Equal to check for equality