diff --git a/examples/callable_provider.py b/examples/callable_provider.py
index efc9f58c..df1c31ac 100644
--- a/examples/callable_provider.py
+++ b/examples/callable_provider.py
@@ -1,40 +1,35 @@
-"""
-Callable provider examples.
-"""
+"""Callable provider examples."""
+
 
 from objects import AbstractCatalog
-from objects.providers import (
-    Singleton,
-    Callable,
-)
-from objects.injections import (
-    Injection,
-    InitArg,
-    Attribute,
-)
+
+from objects.providers import Singleton
+from objects.providers import Callable
+
+from objects.injections import InitArg
+from objects.injections import Attribute
+from objects.injections import Injection
 
 import sqlite3
 
 
-# Some example function.
 def consuming_function(arg, db):
+    """Example function that has input arg and dependency on database."""
     return arg, db
 
 
-# Catalog of objects providers.
 class Catalog(AbstractCatalog):
-    """
-    Objects catalog.
-    """
+
+    """Catalog of objects providers."""
 
     database = Singleton(sqlite3.Connection,
                          InitArg('database', ':memory:'),
                          Attribute('row_factory', sqlite3.Row))
-    """ :type: (objects.Provider) -> sqlite3.Connection """
+    """:type: (objects.Provider) -> sqlite3.Connection"""
 
     consuming_function = Callable(consuming_function,
                                   Injection('db', database))
-    """ :type: (objects.Provider) -> consuming_function """
+    """:type: (objects.Provider) -> consuming_function"""
 
 
 # Some calls.
diff --git a/examples/concept.py b/examples/concept.py
index db12e2b7..9ec87415 100644
--- a/examples/concept.py
+++ b/examples/concept.py
@@ -1,51 +1,53 @@
-"""
-Concept example of objects catalogs.
-"""
+"""Concept example of objects catalogs."""
+
 
 from objects import AbstractCatalog
-from objects.providers import (
-    Singleton,
-    NewInstance,
-)
-from objects.injections import (
-    InitArg,
-    Attribute,
-)
+
+from objects.providers import Singleton
+from objects.providers import NewInstance
+
+from objects.injections import InitArg
+from objects.injections import Attribute
 
 import sqlite3
 
 
-# Some example classes.
 class ObjectA(object):
+
+    """Example class ObjectA, that has dependency on database."""
+
     def __init__(self, db):
+        """Initializer."""
         self.db = db
 
 
 class ObjectB(object):
+
+    """Example class ObjectB, that has dependencies on ObjectA and database."""
+
     def __init__(self, a, db):
+        """Initializer."""
         self.a = a
         self.db = db
 
 
-# Catalog of objects providers.
 class Catalog(AbstractCatalog):
-    """
-    Objects catalog.
-    """
+
+    """Catalog of objects providers."""
 
     database = Singleton(sqlite3.Connection,
                          InitArg('database', ':memory:'),
                          Attribute('row_factory', sqlite3.Row))
-    """ :type: (objects.Provider) -> sqlite3.Connection """
+    """:type: (objects.Provider) -> sqlite3.Connection"""
 
     object_a = NewInstance(ObjectA,
                            InitArg('db', database))
-    """ :type: (objects.Provider) -> ObjectA """
+    """:type: (objects.Provider) -> ObjectA"""
 
     object_b = NewInstance(ObjectB,
                            InitArg('a', object_a),
                            InitArg('db', database))
-    """ :type: (objects.Provider) -> ObjectB """
+    """:type: (objects.Provider) -> ObjectB"""
 
 
 # Catalog static provides.
@@ -61,10 +63,13 @@ assert a1.db is a2.db is b1.db is b2.db is Catalog.database()
 # Dependencies injection (The Python Way) into class.
 class Consumer(object):
 
+    """Example consumer class."""
+
     dependencies = Catalog(Catalog.object_a,
                            Catalog.object_b)
 
-    def test(self):
+    def example(self):
+        """Example method."""
         a1 = self.dependencies.object_a()
         a2 = self.dependencies.object_a()
 
@@ -83,12 +88,14 @@ class Consumer(object):
         else:
             raise Exception('Database is not listed as a dependency')
 
-Consumer().test()
+
+Consumer().example()
 
 
 # Dependencies injection (The Python Way) into a callback.
 def consumer_callback(dependencies=Catalog(Catalog.object_a,
                                            Catalog.object_b)):
+    """Example function."""
     a1 = dependencies.object_a()
     a2 = dependencies.object_a()
 
diff --git a/manage.py b/manage.py
index 98071a46..832bfe7b 100644
--- a/manage.py
+++ b/manage.py
@@ -1,6 +1,4 @@
-"""
-CLI Commands.
-"""
+"""CLI Commands."""
 
 import os
 from setup import version
@@ -12,9 +10,7 @@ manager = Manager()
 
 @manager.command
 def publish(with_tag=True):
-    """
-    Publishes current version to PyPi.
-    """
+    """Publish current version to PyPi."""
     os.system('python setup.py sdist upload')
     if with_tag:
         tag()
@@ -22,12 +18,21 @@ def publish(with_tag=True):
 
 @manager.command
 def tag():
-    """
-    Makes tag from current version.
-    """
+    """Make tag from current version."""
     os.system('git tag -a {0} -m \'version {0}\''.format(version))
     os.system('git push --tags')
 
 
+@manager.command
+def check():
+    """Check `objects` library and examples with code analyzers."""
+    os.system('pylint objects/')
+    os.system('flake8 objects/')
+    os.system('pep257 objects/')
+
+    os.system('pylint examples/')
+    os.system('flake8 examples/')
+    os.system('pep257 examples/')
+
 if __name__ == '__main__':
     manager.main()