diff --git a/README.md b/README.md
index 8395cd5..ea86442 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,7 @@ Deployment
 3. After that you can access application on http://<host_machine_ip>:8000/validation
 
 ### Heroku deployment
+This steps is already depricated, because of mongo-db usage.
 1. $ git clone git@github.com:MirantisLabs/rubick.git
 2. $ cd rubick
 3. $ heroku git:remote -a <name_of_the_heroku_app>
diff --git a/joker/build/lib.linux-x86_64-2.7/joker/__init__.py b/joker/build/lib.linux-x86_64-2.7/joker/__init__.py
deleted file mode 100644
index 2f2e703..0000000
--- a/joker/build/lib.linux-x86_64-2.7/joker/__init__.py
+++ /dev/null
@@ -1,53 +0,0 @@
-#from nodes import NodesDict
-import sys
-
-# yaml.load(sys.stdin.read());
-
-VAGRANT_DEFAULT_KEY = "-----BEGIN RSA PRIVATE KEY----\
-MIIEogIBAAKCAQEA6NF8iallvQVp22WDkTkyrtvp9eWW6A8YVr+kz4TjGYe7gHzI\
-w+niNltGEFHzD8+v1I2YJ6oXevct1YeS0o9HZyN1Q9qgCgzUFtdOKLv6IedplqoP\
-kcmF0aYet2PkEDo3MlTBckFXPITAMzF8dJSIFo9D8HfdOV0IAdx4O7PtixWKn5y2\
-hMNG0zQPyUecp4pzC6kivAIhyfHilFR61RGL+GPXQ2MWZWFYbAGjyiYJnAmCP3NO\
-Td0jMZEnDkbUvxhMmBYSdETk1rRgm+R4LOzFUGaHqHDLKLX+FIPKcF96hrucXzcW\
-yLbIbEgE98OHlnVYCzRdK8jlqm8tehUc9c9WhQIBIwKCAQEA4iqWPJXtzZA68mKd\
-ELs4jJsdyky+ewdZeNds5tjcnHU5zUYE25K+ffJED9qUWICcLZDc81TGWjHyAqD1\
-Bw7XpgUwFgeUJwUlzQurAv+/ySnxiwuaGJfhFM1CaQHzfXphgVml+fZUvnJUTvzf\
-TK2Lg6EdbUE9TarUlBf/xPfuEhMSlIE5keb/Zz3/LUlRg8yDqz5w+QWVJ4utnKnK\
-iqwZN0mwpwU7YSyJhlT4YV1F3n4YjLswM5wJs2oqm0jssQu/BT0tyEXNDYBLEF4A\
-sClaWuSJ2kjq7KhrrYXzagqhnSei9ODYFShJu8UWVec3Ihb5ZXlzO6vdNQ1J9Xsf\
-4m+2ywKBgQD6qFxx/Rv9CNN96l/4rb14HKirC2o/orApiHmHDsURs5rUKDx0f9iP\
-cXN7S1uePXuJRK/5hsubaOCx3Owd2u9gD6Oq0CsMkE4CUSiJcYrMANtx54cGH7Rk\
-EjFZxK8xAv1ldELEyxrFqkbE4BKd8QOt414qjvTGyAK+OLD3M2QdCQKBgQDtx8pN\
-CAxR7yhHbIWT1AH66+XWN8bXq7l3RO/ukeaci98JfkbkxURZhtxV/HHuvUhnPLdX\
-3TwygPBYZFNo4pzVEhzWoTtnEtrFueKxyc3+LjZpuo+mBlQ6ORtfgkr9gBVphXZG\
-YEzkCD3lVdl8L4cw9BVpKrJCs1c5taGjDgdInQKBgHm/fVvv96bJxc9x1tffXAcj\
-3OVdUN0UgXNCSaf/3A/phbeBQe9xS+3mpc4r6qvx+iy69mNBeNZ0xOitIjpjBo2+\
-dBEjSBwLk5q5tJqHmy/jKMJL4n9ROlx93XS+njxgibTvU6Fp9w+NOFD/HvxB3Tcz\
-6+jJF85D5BNAG3DBMKBjAoGBAOAxZvgsKN+JuENXsST7F89Tck2iTcQIT8g5rwWC\
-P9Vt74yboe2kDT531w8+egz7nAmRBKNM751U/95P9t88EDacDI/Z2OwnuFQHCPDF\
-llYOUI+SpLJ6/vURRbHSnnn8a/XG+nzedGH5JGqEJNQsz+xT2axM0/W/CRknmGaJ\
-kda/AoGANWrLCz708y7VYgAtW2Uf1DPOIYMdvo6fxIB5i9ZfISgcJ/bbCUkFrhoH\
-+vq/5CIWxCPp0f85R4qxxQ5ihxJ0YDQT9Jpx4TMss4PSavPaBH3RXow5Ohe+bYoQ\
-NE5OgEXk2wVfZczCZpigBKbKZHNYcelXtTt/nP3rsCuGcM4h53s=\
------END RSA PRIVATE KEY-----"
-
-class Joker():
-
-    def __init__(self, key = VAGRANT_DEFAULT_KEY, *args, **kwargs):
-        self.default_key = key
-
-    def addNode(self, name, host, port, user):
-        return
-
-    def genStub(self, hostname, ip, port, user, key):
-        return {"name": hostname, "ip": ip, "user": user,
-                "key": key, "port": 22}
-
-    def discover(self):
-        return [self.genStub(
-            "controller", "192.168.28.100", 22, "vagrant", self.default_key),
-            self.genStub(
-                "compute1", "192.168.28.101", 22, "vagrant", self.default_key),
-            self.genStub(
-                "compute2", "192.168.30.101", 22, "vagrant", self.default_key)
-        ]
diff --git a/joker/build/lib.linux-x86_64-2.7/joker/nodes.py b/joker/build/lib.linux-x86_64-2.7/joker/nodes.py
deleted file mode 100644
index 164d8e0..0000000
--- a/joker/build/lib.linux-x86_64-2.7/joker/nodes.py
+++ /dev/null
@@ -1,136 +0,0 @@
-import collections
-import paramiko
-
-
-class TransformedDict(collections.MutableMapping):
-
-    def __init__(self, *args, **kwargs):
-        self.store = dict()
-        self.update(dict(*args, **kwargs))  # use the free update to set keys
-
-    def __getitem__(self, key):
-        return self.store[self.__keytransform__(key)]
-
-    def __setitem__(self, key, value):
-        self.store[self.__keytransform__(key)] = value
-
-    def __delitem__(self, key):
-        del self.store[self.__keytransform__(key)]
-
-    def __iter__(self):
-        return iter(self.store)
-
-    def __len__(self):
-        return len(self.store)
-
-    def __keytransform__(self, key):
-        return key
-
-
-class NodesDict(TransformedDict):
-
-    def add(self, element):
-        return self.__setitem__(element, element)
-
-    def __keytransform__(self, key):
-        try:
-            # now uniq for hash is only hwaddr key
-            # print 'hwaddr = ' + key['hwaddr']
-            return key['hwaddr']
-        except KeyError:
-            raise
-
-
-class Node():
-
-    def __init__(self, name, ip):
-
-        self.ssh = paramiko.SSHClient()
-        self.ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
-        self.setHostName(ip)
-        self.setName(name)
-        self.connected = False
-
-        self.neighbours = NodesDict() 
-
-    def prepare(self):
-        self.runCommand(
-            "[ ! -x arp-scan ] && sudo apt-get --force-yes install arp-scan")
-        # install arp-scan on node
-        return True
-
-    def infect(self):
-        # infect node
-        return True
-
-    def setName(self, name):
-        self.name = name
-
-    def setHostName(self, hostname):
-        self.hostName = hostname
-
-    def setAccessPort(self, port):
-        self.accessPort = port
-
-    def assignCredential(self, user, password, key):
-        self.user = user
-        self.password = password
-        self.key = key
-
-    def setProxyCommand(self, proxyCommand):
-        self.proxyCommand = proxyCommand
-
-    def connect(self):
-        if self.connected is True:
-            raise assertionError(self.connected is True)
-        try:
-            self.ssh.connect(self.hostName, self.accessPort, self.user,
-                             key_filename=self.key)
-            self.connected = True
-            return True
-        except paramiko.BadHostKeyException, e:
-            print "Host key could not be verified: ", e
-            return False
-        except paramiko.AuthenticationException, e:
-            print "Error unable to authenticate: ", e
-            return False
-        except paramiko.SSHException, e:
-            print e
-            return False
-
-    def runCommand(self, command):
-        if (command == ""):
-            assertionError(command == "")
-
-        if (self.connected is False):
-            self.connect()
-
-        stdin, stdout, stderr = self.ssh.exec_command(command)
-
-        return (stdout.readlines(), stderr.readlines()) 
-
-    def discovery(self):
-        self.prepare()
-
-        (self.discovery_data, _) = self.runCommand(
-            "ip link | awk -F: '/^[0-9]+?: / {print $2}' |\
-            sudo xargs -I% arp-scan -l -I % 2>&1 | grep -E '^[0-9]+?\.'")
-
-        for node in self.discovery_data:
-            ( node['ip'], node['hwAddr'] ) = node.split("\t")
-        
-        return True
-
-          
-        # ssh -p2301 -i /home/ryabin/.vagrant.d/insecure_private_key
-        # vagrant@127.0.0.1 " link | grep -B1 link/ether | awk -F: '/^[0-9]+?:
-        # / {print \$2}' | sudo xargs -I% arp-scan -l -I % 2>&1 | grep -E
-        # '^[0-9]+?\.'
-
-n = Node("controller", "127.0.0.1")
-n.assignCredential(
-    "vagrant", None, "/home/ryabin/.vagrant.d/insecure_private_key")
-n.setAccessPort(2301)
-
-n.discovery()
-print n.discovery_data
diff --git a/joker/dist/joker-0.1-py2.7.egg b/joker/dist/joker-0.1-py2.7.egg
deleted file mode 100644
index 82254f0..0000000
Binary files a/joker/dist/joker-0.1-py2.7.egg and /dev/null differ
diff --git a/joker/joker.egg-info/PKG-INFO b/joker/joker.egg-info/PKG-INFO
deleted file mode 100644
index 5ad6e5a..0000000
--- a/joker/joker.egg-info/PKG-INFO
+++ /dev/null
@@ -1,10 +0,0 @@
-Metadata-Version: 1.0
-Name: joker
-Version: 0.1
-Summary: why so serious?
-Home-page: https://github.com/MirantisLabs/joker
-Author: Mirantis
-Author-email: emailme@mirantis.com
-License: Apache
-Description: UNKNOWN
-Platform: UNKNOWN
diff --git a/joker/joker.egg-info/SOURCES.txt b/joker/joker.egg-info/SOURCES.txt
deleted file mode 100644
index 0befee7..0000000
--- a/joker/joker.egg-info/SOURCES.txt
+++ /dev/null
@@ -1,8 +0,0 @@
-setup.py
-joker/__init__.py
-joker/nodes.py
-joker.egg-info/PKG-INFO
-joker.egg-info/SOURCES.txt
-joker.egg-info/dependency_links.txt
-joker.egg-info/not-zip-safe
-joker.egg-info/top_level.txt
\ No newline at end of file
diff --git a/joker/joker.egg-info/dependency_links.txt b/joker/joker.egg-info/dependency_links.txt
deleted file mode 100644
index 8b13789..0000000
--- a/joker/joker.egg-info/dependency_links.txt
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/joker/joker.egg-info/not-zip-safe b/joker/joker.egg-info/not-zip-safe
deleted file mode 100644
index 8b13789..0000000
--- a/joker/joker.egg-info/not-zip-safe
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/joker/joker.egg-info/top_level.txt b/joker/joker.egg-info/top_level.txt
deleted file mode 100644
index 4156784..0000000
--- a/joker/joker.egg-info/top_level.txt
+++ /dev/null
@@ -1 +0,0 @@
-joker
diff --git a/rubick/config_formats/ini.py b/rubick/config_formats/ini.py
index 431952d..ce90641 100644
--- a/rubick/config_formats/ini.py
+++ b/rubick/config_formats/ini.py
@@ -29,7 +29,9 @@ class IniConfigParser:
 
             line_number += 1
 
-            if current_param_name and (current_param_value.quotechar or (line == '' or not line[0].isspace())):
+            if current_param_name \
+                and (current_param_value.quotechar
+                     or (line == '' or not line[0].isspace())):
                 param = ConfigParameter(
                     current_param_name.start_mark,
                     current_param_value.end_mark,
@@ -55,28 +57,32 @@ class IniConfigParser:
                     continue
                 else:
                     errors.append(
-                        ParseError('Unexpected multiline value continuation', mark(line_number)))
+                        ParseError('Unexpected multiline value continuation',
+                                   mark(line_number)))
                     continue
 
             if line[0] == '[':
                 end_index = line.find(']')
                 if end_index == -1:
                     errors.append(
-                        ParseError('Unclosed section', mark(line_number, len(line))))
+                        ParseError('Unclosed section', mark(line_number,
+                                                            len(line))))
 
                     end_index = len(line)
                     while line[end_index - 1].isspace():
                         end_index -= 1
                     if end_index <= 1:
                         errors.append(
-                            ParseError('Missing section name', mark(line_number)))
+                            ParseError('Missing section name',
+                                       mark(line_number)))
                         continue
                 else:
                     i = end_index + 1
                     while i < len(line):
                         if not line[i].isspace():
                             errors.append(
-                                ParseError('Extra chars after section name', mark(line_number, i)))
+                                ParseError('Extra chars after section name',
+                                           mark(line_number, i)))
                             break
                         i += 1
 
@@ -111,7 +117,8 @@ class IniConfigParser:
                     # Unquote value
                     value = m.group(3)
                     quotechar = None
-                    if len(value) > 0 and (value[0] == value[-1] and value[0] in "\"'"):
+                    if len(value) > 0 and (value[0] == value[-1]
+                                           and value[0] in "\"'"):
                         quotechar = value[0]
                         value = value[1:-1]
 
diff --git a/rubick/config_formats/test_ini.py b/rubick/config_formats/test_ini.py
index b499416..2f7be57 100644
--- a/rubick/config_formats/test_ini.py
+++ b/rubick/config_formats/test_ini.py
@@ -14,7 +14,8 @@ class IniConfigParserTests(unittest.TestCase):
             lines = lines[1:-1]
         first_line = lines[0]
         margin_size = 0
-        while margin_size < len(first_line) and first_line[margin_size].isspace():
+        while margin_size < len(first_line) \
+            and first_line[margin_size].isspace():
             margin_size += 1
 
         stripped_lines = [line[margin_size:] for line in lines]
@@ -219,7 +220,8 @@ class IniConfigParserTests(unittest.TestCase):
         for attr, expected in attribute_values.items():
             actual = self._getattr(subject, attr)
             self.assertEqual(
-                expected, actual, "%s expected to have %s = %s, but the value was %s" %
+                expected, actual,
+                "%s expected to have %s = %s, but the value was %s" %
                 (subject, attr, expected, actual))
 
     def assertParameter(self, name, value, o):
diff --git a/rubick/discovery.py b/rubick/discovery.py
index e884fdd..1bd7e9d 100644
--- a/rubick/discovery.py
+++ b/rubick/discovery.py
@@ -188,7 +188,8 @@ class OpenstackDiscovery(object):
 
                 client.run(['echo', 'test'])
             except:
-                self.logger.exception("Can't connect to host %s" % node_info['host'])
+                self.logger.exception("Can't connect to host %s"
+                                      % node_info['host'])
                 openstack.report_issue(
                     Issue(
                         Issue.WARNING,
@@ -253,7 +254,9 @@ class OpenstackDiscovery(object):
     def _find_python_package_version(self, client, package):
         result = client.run(
             ['python', '-c',
-             'import pkg_resources; version = pkg_resources.get_provider(pkg_resources.Requirement.parse("%s")).version; print(version)' %
+             'import pkg_resources; version = pkg_resources'
+             '.get_provider(pkg_resources.Requirement.parse("%s"))'
+             '.version; print(version)' %
              package])
 
         s = result.output.strip()
@@ -271,7 +274,8 @@ class OpenstackDiscovery(object):
     def _get_processes(self, client):
         return (
             [line.split()
-             for line in client.run(['ps', '-Ao', 'cmd', '--no-headers']).output.split("\n")]
+             for line in client.run(['ps', '-Ao', 'cmd',
+                                     '--no-headers']).output.split("\n")]
         )
 
     def _collect_host_id(self, client):
@@ -571,7 +575,9 @@ class OpenstackDiscovery(object):
         mysql.config_files = []
         config_locations_result = client.run(
             ['bash', '-c',
-             'mysqld --help --verbose | grep "Default options are read from the following files in the given order" -A 1'])
+             'mysqld --help --verbose '
+             '| grep "Default options are read from the following files in '
+             'the given order" -A 1'])
         config_locations = config_locations_result.output.strip().split(
             "\n")[-1].split()
         for path in config_locations:
diff --git a/rubick/inspections/__init__.py b/rubick/inspections/__init__.py
index ec22622..d43f900 100644
--- a/rubick/inspections/__init__.py
+++ b/rubick/inspections/__init__.py
@@ -1,3 +1,4 @@
-from rubick.inspections.keystone_authtoken import KeystoneAuthtokenSettingsInspection
+from rubick.inspections.keystone_authtoken \
+    import KeystoneAuthtokenSettingsInspection
 from rubick.inspections.keystone_endpoints import KeystoneEndpointsInspection
 from rubick.inspections.lettuce_runner import LettuceRunnerInspection
diff --git a/rubick/model.py b/rubick/model.py
index 0e41ce1..ddb5202 100644
--- a/rubick/model.py
+++ b/rubick/model.py
@@ -1,5 +1,5 @@
-import logging
 from itertools import groupby
+import logging
 
 from rubick.common import Mark, Issue, MarkedIssue
 from rubick.schema import ConfigSchemaRegistry, TypeValidatorRegistry
@@ -243,7 +243,8 @@ class OpenstackComponent(Service):
                         type_validation_result = type_validator.validate(
                             parameter.value.text)
                         if isinstance(type_validation_result, Issue):
-                            type_validation_result.mark = parameter.value.start_mark.merge(
+                            type_validation_result.mark = parameter\
+                                .value.start_mark.merge(
                                 type_validation_result.mark)
                             type_validation_result.message = \
                                 'Property "%s" in section "%s": %s' % (
@@ -260,7 +261,10 @@ class OpenstackComponent(Service):
                             config.set(parameter_fullname, value)
 
                             # if value == parameter_schema.default:
-                            #   report_issue(MarkedIssue(Issue.INFO, 'Explicit value equals default: section "%s" parameter "%s"' % (section_name, parameter.name.text), parameter.start_mark))
+                            #   report_issue(MarkedIssue(Issue.INFO,
+                            # 'Explicit value equals default: section "%s"
+                            # parameter "%s"' % (section_name,
+                            # parameter.name.text), parameter.start_mark))
                         if parameter_schema.deprecation_message:
                             report_issue(
                                 MarkedIssue(
diff --git a/rubick/resource.py b/rubick/resource.py
index 2be97ce..8ef05e4 100644
--- a/rubick/resource.py
+++ b/rubick/resource.py
@@ -113,7 +113,8 @@ class FilesystemSnapshot(object):
                         group=group,
                         permissions=permissions)
                 elif resource_type == 'file':
-                    source_path, local_path, owner, group, permissions = line.split('|')[1:]
+                    source_path, local_path, owner, group, \
+                    permissions = line.split('|')[1:]
                     self._resources[source_path] = FileResource(
                         os.path.basename(source_path),
                         path=os.path.join(self.basedir,
@@ -147,7 +148,8 @@ class ConfigSnapshotResourceLocator(object):
             else:
                 return (
                     [HostResource(os.path.basename(host_path), self)
-                     for host_path in glob.glob(os.path.join(self.basedir, '*')) if os.path.isdir(host_path)]
+                     for host_path in glob.glob(os.path.join(
+                        self.basedir, '*')) if os.path.isdir(host_path)]
                 )
         if resource_type == Resource.FILE:
             if not host:
diff --git a/rubick/schema.py b/rubick/schema.py
index f948874..5c006f5 100644
--- a/rubick/schema.py
+++ b/rubick/schema.py
@@ -91,7 +91,8 @@ class SchemaBuilder(object):
     def _ensure_version(self):
         if not self.current_version:
             raise Error(
-                'Schema version is not specified. Please call version() method first')
+                'Schema version is not specified. Please call version() '
+                'method first')
 
 
 class ConfigSchemaRegistry:
@@ -118,7 +119,8 @@ class ConfigSchemaRegistry:
         records = self.__schemas[fullname]
         i = len(records) - 1
         # Find latest checkpoint prior given version
-        while i >= 0 and not (records[i].operation == 'checkpoint' and records[i].version <= version):
+        while i >= 0 and not (records[i].operation == 'checkpoint'
+                              and records[i].version <= version):
             i -= 1
 
         if i < 0:
@@ -203,8 +205,14 @@ class ConfigParameterSchema:
 
     def __repr__(self):
         return (
-            '<ConfigParameterSchema %s>' % ' '.join(['%s=%s' % (attr, getattr(self, attr))
-                                                    for attr in ['section', 'name', 'type', 'description', 'default', 'required']])
+            '<ConfigParameterSchema %s>' % ' '.join(
+                ['%s=%s' % (attr, getattr(self, attr))
+                                                    for attr in ['section',
+                                                                 'name',
+                                                                 'type',
+                                                                 'description',
+                                                                 'default',
+                                                                 'required']])
         )
 
 
@@ -304,7 +312,8 @@ def validate_ipv4_network(s):
     if len(parts) != 2:
         return (
             InvalidValueError(
-                'Should have "/" character separating address and prefix length')
+                'Should have "/" character separating address and prefix '
+                'length')
         )
 
     address, prefix = parts
@@ -339,8 +348,8 @@ def validate_host_label(s):
     if not s[0].isalpha():
         return (
             InvalidValueError(
-                'Host label should start with a letter, but it starts with "%s"' %
-                s[0])
+                'Host label should start with a letter, but it starts with '
+                '"%s"' % s[0])
         )
 
     if len(s) == 1:
@@ -349,7 +358,8 @@ def validate_host_label(s):
     if not (s[-1].isdigit() or s[-1].isalpha()):
         return (
             InvalidValueError(
-                'Host label should end with letter or digit, but it ends with "%s"' %
+                'Host label should end with letter or digit, but it ends '
+                'with "%s"' %
                 s[-1], Mark('', 0, len(s) - 1))
         )
 
@@ -360,7 +370,8 @@ def validate_host_label(s):
         if not (c.isalpha() or c.isdigit() or c == '-'):
             return (
                 InvalidValueError(
-                    'Host label should contain only letters, digits or hypens, but it contains "%s"' %
+                    'Host label should contain only letters, digits or hypens,'
+                    ' but it contains "%s"' %
                     c, Mark('', 0, i + 1))
             )
 
@@ -426,7 +437,8 @@ def validate_string(s):
 @type_validator('integer')
 def validate_integer(s, min=None, max=None):
     leading_whitespace_len = 0
-    while leading_whitespace_len < len(s) and s[leading_whitespace_len].isspace():
+    while leading_whitespace_len < len(s) \
+        and s[leading_whitespace_len].isspace():
         leading_whitespace_len += 1
 
     s = s.strip()
diff --git a/rubick/test_configuration.py b/rubick/test_configuration.py
index cc3eb1d..0bd90f7 100644
--- a/rubick/test_configuration.py
+++ b/rubick/test_configuration.py
@@ -124,7 +124,8 @@ class ConfigurationTests(unittest.TestCase):
         c.set_default('%s.param2' % self.section, 'value2')
 
         self.assertEqual(
-            [('param1', 'value1'), ('param2', 'value2')], sorted(c.section(self.section).items()))
+            [('param1', 'value1'), ('param2', 'value2')],
+            sorted(c.section(self.section).items()))
 
     def test_subsection_get(self):
         c = Configuration()
diff --git a/rubick/test_type_validators.py b/rubick/test_type_validators.py
index fd0bb8b..3b3203b 100644
--- a/rubick/test_type_validators.py
+++ b/rubick/test_type_validators.py
@@ -83,7 +83,8 @@ class IntegerTypeValidatorTests(TypeValidatorTestHelper, unittest.TestCase):
         self.assertEqual(123, v)
 
 
-class HostAddressTypeValidatorTests(TypeValidatorTestHelper, unittest.TestCase):
+class HostAddressTypeValidatorTests(TypeValidatorTestHelper,
+                                    unittest.TestCase):
     type_name = 'host_address'
 
     def test_ipv4_address(self):
@@ -135,7 +136,8 @@ class HostAddressTypeValidatorTests(TypeValidatorTestHelper, unittest.TestCase):
         self.assertEqual(8, e.mark.column)
 
 
-class NetworkAddressTypeValidatorTests(TypeValidatorTestHelper, unittest.TestCase):
+class NetworkAddressTypeValidatorTests(TypeValidatorTestHelper,
+                                       unittest.TestCase):
     type_name = 'network_address'
 
     def test_ipv4_network(self):
@@ -200,7 +202,8 @@ class PortTypeValidatorTests(TypeValidatorTestHelper, unittest.TestCase):
         self.assertEqual(123, v)
 
 
-class HostAndPortTypeValidatorTests(TypeValidatorTestHelper, unittest.TestCase):
+class HostAndPortTypeValidatorTests(TypeValidatorTestHelper,
+                                    unittest.TestCase):
     type_name = 'host_and_port'
 
     def test_ipv4_address(self):