Update README

README.rst

@@ -70,7 +70,7 @@ Coupling and cohesion are about how tough the components are tied.
 
 When the cohesion is high the coupling is low.
 
-Low coupling and high cohesion brings a flexibility. Your code becomes easier to change and test.
+Low coupling brings a flexibility. Your code becomes easier to change and test.
 
 How to implement dependency injection?
 --------------------------------------
@@ -124,7 +124,6 @@ After:
    if __name__ == '__main__':
        service = Service(ApiClient(os.getenv('API_KEY'), os.getenv('TIMEOUT')))
 
-
 ``ApiClient`` is decoupled from knowing where the options come from. You can read a key and a
 timeout from a configuration file or even get them from a database.
 
@@ -133,16 +132,23 @@ stub or other compatible object.
 
 Flexibility comes with a price.
 
-Now you need to assemble your objects like this
+Now you need to assemble the objects like this::
-``Service(ApiClient(os.getenv('API_KEY'), os.getenv('TIMEOUT')))``. The assembly code might get
-duplicated and it'll become harder to change the application structure.
 
-What does Dependency Injector do?
+    service = Service(ApiClient(os.getenv('API_KEY'), os.getenv('TIMEOUT')))
----------------------------------
+
+The assembly code might get duplicated and it'll become harder to change the application structure.
+
+Here comes the ``Dependency Injector``.
+
+What does the Dependency Injector do?
+-------------------------------------
+
+With the dependency injection pattern objects lose the responsibility of assembling the
+dependencies. The ``Dependency Injector`` absorbs that responsibility.
 
 ``Dependency Injector`` helps to assemble the objects.
 
-It provides you the container and the providers that help you describe objects assembly. When you
+It provides a container and providers that help you with the objects assembly. When you
 need an object you get it from the container. The rest of the assembly work is done by the
 framework:
 
@@ -151,19 +157,6 @@ framework:
    from dependency_injector import containers, providers
 
 
-   class ApiClient:
-
-       def __init__(self, api_key: str, timeout: int):
-           self.api_key = api_key
-           self.timeout = timeout
-
-
-   class Service:
-
-       def __init__(self, api_client: ApiClient):
-           self.api_client = api_client
-
-
    class Container(containers.DeclarativeContainer):
 
        config = providers.Configuration()
@@ -187,12 +180,14 @@ framework:
 
        service = container.service()
 
-Retrieving of the ``Service`` instance now is done like this ``container.service()``.
+Retrieving of the ``Service`` instance now is done like this::
+
+    service = container.service()
 
 Objects assembling is consolidated in the container. When you need to make a change you do it in
 one place.
 
-When doing the testing you call the ``container.api_client.override()`` to replace the real API
+When doing a testing you call the ``container.api_client.override()`` to replace the real API
 client with a mock:
 
 .. code-block:: python
@@ -203,8 +198,10 @@ client with a mock:
    with container.api_client.override(mock.Mock()):
        service = container.service()
 
-It helps in a testing. Also you can use it for configuring project for the different environments:
+You can override any provider by another provider.
-replace an API client with a stub on the dev or stage.
+
+It also helps you in configuring project for the different environments: replace an API client
+with a stub on the dev or stage.
 
 `More examples <https://github.com/ets-labs/python-dependency-injector/tree/master/examples>`_
 

docs/introduction/di_in_python.rst

@@ -3,16 +3,17 @@ Dependency injection and inversion of control in Python
 
 .. meta::
    :keywords: Python,DI,Dependency injection,IoC,Inversion of Control,Example
-   :description: This page describes a usage of the dependency injection pattern in Python. It
+   :description: This page describes a usage of the dependency injection and inversion of control
-                 contains Python examples that show how to implement dependency injection. It
+                 in Python. It contains Python examples that show how to implement dependency
-                 demonstrates a usage of the dependency injection framework
+                 injection. It demonstrates a usage of the dependency injection framework
                  Dependency Injector, its container, Factory, Singleton and Configuration
                  providers. The example show how to use Dependency Injector providers overriding
                  feature for testing or configuring project in different environments and explains
                  why it's better then monkey-patching.
 
 Originally dependency injection pattern got popular in the languages with a static typing,
-like Java. Dependency injection framework can significantly improve flexibility of the language
+like Java. Dependency injection is a principle that helps to achieve an inversion of control.
+Dependency injection framework can significantly improve a flexibility of the language
 with a static typing. Implementation of a dependency injection framework for a language
 with a static typing is not something that one can do quickly. It will be a quite complex thing
 to be done well. And will take time.