Drop example about config provider

examples/advanced_usage/config_provider.py

@@ -1,63 +0,0 @@
-"""Config provider examples."""
-
-from dependency_injector import catalogs
-from dependency_injector import providers
-
-
-class ObjectA(object):
-    """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
-
-
-class Catalog(catalogs.DeclarativeCatalog):
-    """Catalog of providers."""
-
-    config = providers.Config()
-    """:type: providers.Config"""
-
-    object_a = providers.Factory(ObjectA,
-                                 fee=config.FEE,
-                                 price=config.PRICE,
-                                 timezone=config.GLOBAL.TIMEZONE)
-
-
-# Setting config value and making some tests.
-Catalog.config.update_from({
-    'FEE': 1.25,
-    'PRICE': 2.99,
-    'GLOBAL': {
-        'TIMEZONE': 'US/Eastern'
-    }
-})
-
-object_a1 = Catalog.object_a()
-
-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({
-    'FEE': 5.25,
-    'PRICE': 19.99,
-    'GLOBAL': {
-        'TIMEZONE': 'US/Western'
-    }
-})
-
-object_a2 = Catalog.object_a()
-
-# 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'
-
-# And old one has old ones.
-assert object_a1.fee == 1.25
-assert object_a1.price == 2.99
-assert object_a1.timezone == 'US/Eastern'