diff --git a/ansibledoctor/Annotation.py b/ansibledoctor/Annotation.py
index 275088c..8f51c46 100644
--- a/ansibledoctor/Annotation.py
+++ b/ansibledoctor/Annotation.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+"""Find and parse annotations to AnnotationItem objects."""
 
 import json
 import pprint
@@ -20,6 +21,7 @@ class AnnotationItem:
         self.data = defaultdict(dict)
 
     def __str__(self):
+        """Beautify object string output."""
         for key in self.data.keys():
             for sub in self.data.get(key):
                 return "AnnotationItem({}: {})".format(key, sub)
diff --git a/ansibledoctor/Cli.py b/ansibledoctor/Cli.py
index 2f059df..f7546a4 100644
--- a/ansibledoctor/Cli.py
+++ b/ansibledoctor/Cli.py
@@ -1,16 +1,17 @@
 #!/usr/bin/env python3
+"""Entrypoimt and CLI handler."""
 
 import argparse
 import logging
 import os
 import sys
 
+import ansibledoctor.Exception
 from ansibledoctor import __version__
 from ansibledoctor.Config import SingleConfig
 from ansibledoctor.DocumentationGenerator import Generator
 from ansibledoctor.DocumentationParser import Parser
 from ansibledoctor.Utils import SingleLog
-import ansibledoctor.Exception
 
 
 class AnsibleDoctor:
diff --git a/ansibledoctor/Config.py b/ansibledoctor/Config.py
index 17cea7c..af9fc97 100644
--- a/ansibledoctor/Config.py
+++ b/ansibledoctor/Config.py
@@ -1,17 +1,18 @@
-"""Global settings object definition."""
+#!/usr/bin/env python3
+"""Global settings definition."""
 
 import os
 import sys
 
 import anyconfig
-import yaml
 import jsonschema.exceptions
+import yaml
 from appdirs import AppDirs
 from jsonschema._utils import format_as_index
 from pkg_resources import resource_filename
 
-from ansibledoctor.Utils import Singleton
 import ansibledoctor.Exception
+from ansibledoctor.Utils import Singleton
 
 config_dir = AppDirs("ansible-doctor").user_config_dir
 default_config_file = os.path.join(config_dir, "config.yml")
diff --git a/ansibledoctor/Contstants.py b/ansibledoctor/Contstants.py
index aa90832..4b219f5 100644
--- a/ansibledoctor/Contstants.py
+++ b/ansibledoctor/Contstants.py
@@ -1,4 +1,5 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
+"""Global constants."""
 
 DOCTOR_CONF_FILE = "doctor.conf.yaml"
 YAML_EXTENSIONS = ["yaml", "yml"]
diff --git a/ansibledoctor/DocumentationGenerator.py b/ansibledoctor/DocumentationGenerator.py
index f33b454..70f5428 100644
--- a/ansibledoctor/DocumentationGenerator.py
+++ b/ansibledoctor/DocumentationGenerator.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+"""Prepare output and write compiled jinja2 templates."""
 
 import codecs
 import glob
@@ -7,16 +8,16 @@ import ntpath
 import os
 import pprint
 import sys
-
 from functools import reduce
+
 import jinja2.exceptions
 import ruamel.yaml
 from jinja2 import Environment
 from jinja2 import FileSystemLoader
 from six import binary_type
 from six import text_type
-import ansibledoctor.Exception
 
+import ansibledoctor.Exception
 from ansibledoctor.Config import SingleConfig
 from ansibledoctor.Utils import FileUtils
 from ansibledoctor.Utils import SingleLog
diff --git a/ansibledoctor/DocumentationParser.py b/ansibledoctor/DocumentationParser.py
index 1433c16..c9db13b 100644
--- a/ansibledoctor/DocumentationParser.py
+++ b/ansibledoctor/DocumentationParser.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+"""Parse static files."""
 
 import fnmatch
 import json
@@ -67,13 +68,3 @@ class Parser:
 
     def get_data(self):
         return self._data
-
-    def cli_print_section(self):
-        return self.config.use_print_template
-
-    def cli_left_space(self, item1="", left=25):
-        item1 = item1.ljust(left)
-        return item1
-
-    def test(self):
-        return "test()"
diff --git a/ansibledoctor/Exception.py b/ansibledoctor/Exception.py
index 5d18846..676afb6 100644
--- a/ansibledoctor/Exception.py
+++ b/ansibledoctor/Exception.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-"""Custom exception definition."""
+"""Custom exceptions."""
 
 
 class DoctorError(Exception):
diff --git a/ansibledoctor/FileRegistry.py b/ansibledoctor/FileRegistry.py
index 64f00c8..58da731 100644
--- a/ansibledoctor/FileRegistry.py
+++ b/ansibledoctor/FileRegistry.py
@@ -1,9 +1,12 @@
 #!/usr/bin/env python3
+"""File registry to encapsulate file system related operations."""
+
 import glob
 import os
-import pathspec
 import sys
 
+import pathspec
+
 from ansibledoctor.Config import SingleConfig
 from ansibledoctor.Contstants import YAML_EXTENSIONS
 from ansibledoctor.Utils import SingleLog
diff --git a/ansibledoctor/Utils.py b/ansibledoctor/Utils.py
index f74bf6a..0c1fa94 100644
--- a/ansibledoctor/Utils.py
+++ b/ansibledoctor/Utils.py
@@ -1,4 +1,6 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
+"""Global utility methods and classes."""
+
 import logging
 import os
 import pprint
@@ -8,6 +10,7 @@ from distutils.util import strtobool
 import colorama
 import yaml
 from pythonjsonlogger import jsonlogger
+
 import ansibledoctor.Exception
 
 CONSOLE_FORMAT = "{}[%(levelname)s]{} %(message)s"