Update Callable provider docs

docs/providers/callable.rst

@@ -1,17 +1,19 @@
 Callable providers
 ------------------
 
-``Callable`` provider is a provider that wraps particular callable with
+``di.Callable`` provider is a provider that wraps particular callable with
 some injections. Every call of this provider returns result of call of initial
 callable.
 
 Callable providers and injections
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-``Callable`` provider uses ``KwArg`` injections. ``KwArg`` injections are
-done by passing injectable values as keyword arguments during call time.
+``di.Callable`` provider uses keyword argument injections. Keyword argument 
+injections are done by passing injectable values as keyword arguments during 
+call time.
 
-Context keyword arguments have higher priority than ``KwArg`` injections.
+Context keyword arguments have higher priority than keyword argument 
+injections.
 
 Example:
 
@@ -25,13 +27,13 @@ Example:
 Callable providers delegation
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-``Callable`` provider could be delegated to any other provider via any kind of
-injection. Delegation of ``Callable`` providers is the same as ``Factory`` and
-``Singleton`` providers delegation, please follow *Factory providers 
-delegation* section for example.
+``di.Callable`` provider could be delegated to any other provider via any kind 
+of injection. Delegation of ``di.Callable`` providers is the same as 
+``di.Factory`` and ``di.Singleton`` providers delegation, please follow 
+*Factory providers delegation* section for example.
 
-``Callable`` delegate could be created obviously using 
-``Delegate(Callable())`` or by calling ``Callable.delegate()`` method.
+``di.Callable`` delegate could be created obviously using 
+``di.Delegate(di.Callable())`` or by calling ``di.Callable.delegate()`` method.
 
 Example:
 

examples/providers/callable_delegation.py

@@ -1,15 +1,13 @@
-"""`Callable` providers delegation example."""
+"""`di.Callable` providers delegation example."""
 
 import sys
-
-from dependency_injector.providers import Callable
-from dependency_injector.providers import Delegate
+import dependency_injector as di
 
 
 # Creating some callable provider and few delegates of it:
-callable_provider = Callable(sys.exit)
+callable_provider = di.Callable(sys.exit)
 callable_provider_delegate1 = callable_provider.delegate()
-callable_provider_delegate2 = Delegate(callable_provider)
+callable_provider_delegate2 = di.Delegate(callable_provider)
 
 # Making some asserts:
 assert callable_provider_delegate1() is callable_provider

examples/providers/callable_injections.py

@@ -1,17 +1,14 @@
-"""`Callable` providers example."""
-
-from passlib.hash import sha256_crypt
-
-from dependency_injector.providers import Callable
-from dependency_injector.injections import KwArg
+"""`di.Callable` providers example."""
 
+import passlib.hash
+import dependency_injector as di
 
 # Password hasher and verifier providers (hash function could be changed
 # anytime (for example, to sha512) without any changes in client's code):
-password_hasher = Callable(sha256_crypt.encrypt,
-                           KwArg('salt_size', 16),
-                           KwArg('rounds', 10000))
-password_verifier = Callable(sha256_crypt.verify)
+password_hasher = di.Callable(passlib.hash.sha256_crypt.encrypt,
+                              salt_size=16,
+                              rounds=10000)
+password_verifier = di.Callable(passlib.hash.sha256_crypt.verify)
 
 # Making some asserts (client's code):
 hashed_password = password_hasher('super secret')