Removing old external dependency provider example

examples/readme2/external_dependency_providers.py

@@ -1,48 +0,0 @@
-"""External dependency providers example."""
-
-import sqlite3
-
-from objects.providers import Singleton
-from objects.providers import Factory
-from objects.providers import ExternalDependency
-
-from objects.injections import KwArg
-from objects.injections import Attribute
-
-
-class ObjectA(object):
-
-    """ObjectA has dependency on database."""
-
-    def __init__(self, database):
-        """Initializer.
-
-        Database dependency need to be injected via init arg."""
-        self.database = database
-
-    def get_one(self):
-        """Select one from database and return it."""
-        return self.database.execute('SELECT 1').fetchone()[0]
-
-
-# Database and `ObjectA` providers.
-database = ExternalDependency(instance_of=sqlite3.Connection)
-
-object_a_factory = Factory(ObjectA,
-                           KwArg('database', database))
-
-# Satisfaction of external dependency.
-database.override(Singleton(sqlite3.Connection,
-                            KwArg('database', ':memory:'),
-                            KwArg('timeout', 30),
-                            KwArg('detect_types', True),
-                            KwArg('isolation_level', 'EXCLUSIVE'),
-                            Attribute('row_factory', sqlite3.Row)))
-
-# Creating several `ObjectA` instances.
-object_a_1 = object_a_factory()
-object_a_2 = object_a_factory()
-
-# Making some asserts.
-assert object_a_1 is not object_a_2
-assert object_a_1.database is object_a_2.database is database()