Update README.rst

README.rst

@@ -45,6 +45,7 @@ with a focus on raw multi-channel video. It shares part of the interface of a :o
 instance the propertises :obj:`ndim` and :obj:`shape`, but with a name on top
 
 .. code-block:: python
+
    from bob.io.stream import Stream
 
    color = Stream("color")
@@ -56,6 +57,7 @@ A :obj:`Stream` object is created in an 'indefinite' state, characterised by a :
 Such a newly created can be made to point to a dataset stored in a properly formated HDF5 file
 
 .. code-block:: python
+
    from bob.io.stream import StreamFile
 
    f = StreamFile("data.h5")
@@ -69,6 +71,7 @@ Which is the 'definite' state where the objet points towards a data source, this
 A last possible state for such an object is a 'streaming' state where
 
 .. code-block:: python
+
    color.source = streaming_source
 
    print(color.ndim)    # -> 4
@@ -79,6 +82,7 @@ object, the first dimension of a stream :obj:`Stream` is always a time direction
 our stream to a definite state
 
 .. code-block:: python
+
    color.source = f
 
    frame = color[0]
@@ -91,6 +95,7 @@ Similarly to a numpy array of more than one dimension, subscripting on the first
 the first index however is not an integer but a range (a pythonic :obj:`slice` formally) 
 
 .. code-block:: python
+
    what = color[3:13, :, 100:200, 300:400]
 
    print(what.ndim)    # -> 4
@@ -102,6 +107,7 @@ the data in the object it subscripts. It should be noted that no data is transfe
 is a only node in a data processing chain, with a parent and a child
 
 .. code-block:: python
+
    print(color.parent == f)   # -> True
    print(color.child == what) # -> True
 
@@ -109,12 +115,14 @@ This processing chain can be further extended by adding 'filters' after the chil
 implemented by the :obj:`stream` object
 
 .. code-block:: python
+
    norm = what.normalise()          # -> <class 'StreamNormalise'>
    real = norm.as_type('float')     # -> <class 'StreamAsType'>
 
 A list of filters is returned by the :obj:`get_available_filters()` method of the :obj:`Stream` class. 
 
 .. code-block:: python
+
    # StreamFile("file.h5") 
    #  -> Stream("color")
    #  -> StreamView(index=(slice(3,13), slice(None), slice(100,200), slice(300,400))) 
@@ -127,6 +135,7 @@ In the following example, the data goes down the chain on the first line, on the
 ('real') is returned. 
 
 .. code-block:: python
+
    data = real[0]
    data = real[0]
 
@@ -134,6 +143,7 @@ This buffering avoids useless computation in more complex pipelines. An alternat
 the :obj:`load` method that also allows loading several frames at the same time
 
 .. code-block:: python
+
    data0, *meta0 = real.load(0)
    data1, *meta1 = real.load(slice(3,13,2))