updating examples codestyle

examples/config_provider.py

@@ -1,69 +1,71 @@
-"""
-Config provider examples.
-"""
+"""Config provider examples."""
+
 
 from objects import AbstractCatalog
-from objects.providers import (
-    Config,
-    NewInstance,
-)
+
+from objects.providers import Config
+from objects.providers import NewInstance
+
 from objects.injections import InitArg
 
 
-# Some example class.
 class ObjectA(object):
-    def __init__(self, setting_one, setting_two, setting_three):
-        self.setting_one = setting_one
-        self.setting_two = setting_two
-        self.setting_three = setting_three
+
+    """Example class ObjectA, that has dependencies on some setting values."""
+
+    def __init__(self, fee, price, timezone):
+        """Initializer."""
+        self.fee = fee
+        self.price = price
+        self.timezone = timezone
 
 
-# Catalog of objects providers.
 class Catalog(AbstractCatalog):
-    """
-    Objects catalog.
-    """
+
+    """Catalog of objects providers."""
 
     config = Config()
-    """ :type: (objects.Config) """
+    """:type: (objects.Config)"""
 
     object_a = NewInstance(ObjectA,
-                           InitArg('setting_one', config.SETTING_ONE),
-                           InitArg('setting_two', config.SETTING_TWO),
-                           InitArg('setting_three', config.GLOBAL.SETTING_THREE))
-    """ :type: (objects.Provider) -> ObjectA """
+                           InitArg('fee', config.FEE),
+                           InitArg('price', config.PRICE),
+                           InitArg('timezone', config.GLOBAL.TIMEZONE))
+    """:type: (objects.Provider) -> ObjectA"""
 
 
 # Setting config value and making some tests.
 Catalog.config.update_from({
-    'SETTING_ONE': 1,
-    'SETTING_TWO': 2,
+    'FEE': 1.25,
+    'PRICE': 2.99,
     'GLOBAL': {
-        'SETTING_THREE': 3
+        'TIMEZONE': 'US/Eastern'
     }
 })
 
 object_a1 = Catalog.object_a()
 
-assert object_a1.setting_one == 1
-assert object_a1.setting_two == 2
-assert object_a1.setting_three == 3
+assert object_a1.fee == 1.25
+assert object_a1.price == 2.99
+assert object_a1.timezone == 'US/Eastern'
 
 # Changing config value one more time and making some tests.
 Catalog.config.update_from({
-    'SETTING_ONE': 11,
-    'SETTING_TWO': 22,
+    'FEE': 5.25,
+    'PRICE': 19.99,
     'GLOBAL': {
-        'SETTING_THREE': 33
+        'TIMEZONE': 'US/Western'
     }
 })
 
 object_a2 = Catalog.object_a()
 
-assert object_a2.setting_one == 11
-assert object_a2.setting_two == 22
-assert object_a2.setting_three == 33
+# New one ObjectA has new config values.
+assert object_a2.fee == 5.25
+assert object_a2.price == 19.99
+assert object_a2.timezone == 'US/Western'
 
-assert object_a1.setting_one == 1
-assert object_a1.setting_two == 2
-assert object_a1.setting_three == 3
+# And old one has old ones.
+assert object_a1.fee == 1.25
+assert object_a1.price == 2.99
+assert object_a1.timezone == 'US/Eastern'

examples/delegate.py

@@ -1,52 +1,56 @@
-"""Example of providers delegate."""
+"""Provider delegation example."""
+
 
 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):
-    def __init__(self, a_factory):
-        self.a_factory = a_factory
+
+    """Example class ObjectB, that has dependency on ObjectA provider."""
+
+    def __init__(self, a_provider):
+        """Initializer."""
+        self.a_provider = a_provider
 
 
-# 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 = Singleton(ObjectB,
-                         InitArg('a_factory', object_a.delegate()))
-    """ :type: (objects.Provider) -> ObjectB """
+                         InitArg('a_provider', object_a.delegate()))
+    """:type: (objects.Provider) -> ObjectB"""
 
 
 # Catalog static provides.
 b = Catalog.object_b()
-a1, a2 = b.a_factory(), b.a_factory()
+a1, a2 = b.a_provider(), b.a_provider()
 
 # Some asserts.
 assert a1 is not a2

examples/external_dependency.py

@@ -1,46 +1,52 @@
-"""
-Concept example of objects catalogs.
-"""
+"""External dependency example."""
+
 
 from objects import AbstractCatalog
+
 from objects.providers import Singleton
 from objects.providers import NewInstance
 from objects.providers import ExternalDependency
+
 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 = ExternalDependency(instance_of=sqlite3.Connection)
-    """ :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"""
 
 
 # Satisfaction of external dependency.

examples/overrides.py

@@ -1,61 +1,54 @@
-"""
-Concept example of objects overrides.
-"""
+"""Override example."""
 
 
-from objects import (
-    AbstractCatalog,
-    overrides,
-)
-from objects.providers import (
-    Singleton,
-    NewInstance,
-)
-from objects.injections import (
-    InitArg,
-    Attribute,
-)
+from objects import AbstractCatalog
+from objects import overrides
+
+from objects.providers import Singleton
+from objects.providers import NewInstance
+
+from objects.injections import InitArg
+from objects.injections import Attribute
 
 import sqlite3
 
 
-# Some example class.
 class ObjectA(object):
+
+    """Example class ObjectA, that has dependency on database."""
+
     def __init__(self, db):
+        """Initializer."""
         self.db = db
 
 
-# Mock of example class.
 class ObjectAMock(ObjectA):
-    pass
+
+    """Mock of ObjectA example class."""
 
 
-# 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"""
 
 
-# Overriding Catalog by SandboxCatalog with some mocks.
 @overrides(Catalog)
 class SandboxCatalog(Catalog):
-    """
-    Sandbox objects catalog with some mocks.
-    """
+
+    """Sandbox objects catalog with some mocks that overrides Catalog."""
 
     object_a = NewInstance(ObjectAMock,
                            InitArg('db', Catalog.database))
-    """ :type: (objects.Provider) -> ObjectA """
+    """:type: (objects.Provider) -> ObjectA"""
 
 
 # Catalog static provides.

examples/scoped_provider.py

@@ -1,39 +1,38 @@
-"""
-Scoped provider examples.
-"""
+"""Scoped provider examples."""
+
 
 from objects import AbstractCatalog
-from objects.providers import (
-    Singleton,
-    Scoped,
-)
-from objects.injections import (
-    InitArg,
-    Attribute,
-)
+
+from objects.providers import Singleton
+from objects.providers import Scoped
+
+from objects.injections import InitArg
+from objects.injections import Attribute
 
 import sqlite3
 
 
 class ObjectA(object):
+
+    """Example class ObjectA, that has dependency on database."""
+
     def __init__(self, db):
+        """Initializer."""
         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 = Scoped(ObjectA,
                       InitArg('db', database))
-    """ :type: (objects.Provider) -> ObjectA """
+    """:type: (objects.Provider) -> ObjectA"""
 
 
 # Making scope using `with` statement.

objects/catalog.py

@@ -49,6 +49,7 @@ class AbstractCatalog(object):
 def overrides(catalog):
     """Catalog overriding decorator."""
     def decorator(overriding_catalog):
+        """Overriding decorator."""
         catalog.__override___(overriding_catalog)
         return overriding_catalog
     return decorator