fix code blocks in python-ipython-diff

code-block requires a language

docs/source/interactive/python-ipython-diff.rst

@@ -16,46 +16,46 b' Quick overview:'
 ===============
 
 
-All the following construct are valid IPython syntax :
+All the following construct are valid IPython syntax:
 
-.. code-block::
+.. code-block:: ipython
 
-    ?   
+    In [1]: ?
 
-.. code-block::
+.. code-block:: ipython
 
-    ?object
+    In [1]: ?object
 
 
-.. code-block::
+.. code-block:: ipython
 
-    object?
+    In [1]: object?
 
-.. code-block::
+.. code-block:: ipython
 
-    *pattern*?
+    In [1]: *pattern*?
 
-.. code-block::
+.. code-block:: ipython
 
-    %shell like --syntax
+    In [1]: %shell like --syntax
 
-.. code-block::
+.. code-block:: ipython
 
-    !ls
+    In [1]: !ls
 
-.. code-block::
+.. code-block:: ipython
 
-    my_files =! ls ~/
-    for i,file in enumerate(my_file):
-        raw = !echo $file
-        !echo {files[0].upper()} $raw
+    In [1]: my_files =! ls ~/
+    In [1]: for i,file in enumerate(my_file):
+       ...:     raw = !echo $file
+       ...:     !echo {files[0].upper()} $raw
 
 
-.. code-block::
+.. code-block:: ipython
 
-    %%perl magic --function
-    @months = ("July", "August", "September");
-    print $months[0];
+    In [1]: %%perl magic --function
+       ...: @months = ("July", "August", "September");
+       ...: print $months[0];
     
 
 Each of these construct is compile by IPython into valid python code and will
@@ -63,18 +63,15 b' do most of the time what you expect it will do. Let see each of these example'
 in more detail.
 
 
-
-
-
 Accessing help
 ==============
 
 As IPython is mostly an interactive shell, the question mark is a simple
 shortcut to get help. A question mark alone will bring up the IPython help:
 
-.. code-block::
+.. code-block:: ipython
 
-    In[1]:?
+    In [1]: ?
 
     IPython -- An enhanced Interactive Python
     =========================================
@@ -95,7 +92,7 b' shortcut to get help. A question mark alone will bring up the IPython help:'
 A single question mark before, or after an object available in current
 namespace will show help relative to this object:
 
-.. code-block::
+.. code-block:: ipython
 
     In [6]: object?
     Docstring: The most base type
@@ -105,7 +102,7 b' namespace will show help relative to this object:'
 A double question mark will try to pull out more information about the object,
 and if possible display the python source code of this object. 
 
-.. code-block::
+.. code-block:: ipython
 
     In[1]: import collections
     In[2]: collection.Counter??
@@ -133,7 +130,8 b' If you are looking for an object, the use of wildcards ``*`` in conjunction'
 with question mark will allow you to search current namespace for object with
 matching names:
 
-.. code-block::
+.. code-block:: ipython
+
     In [24]: *int*?
     FloatingPointError
     int
@@ -149,20 +147,20 b' This is doable through the use of the exclamation mark ``!`` (or bang).'
 
 This allow to execute simple command when present in beginning of line:
 
-.. code-block::
+.. code-block:: ipython
 
     In[1]: !pwd
     /User/home/
 
 Change directory:
 
-.. code-block::
+.. code-block:: ipython
 
     In[1]: !cd /var/etc
 
 Or edit file:
 
-.. code-block::
+.. code-block:: ipython
 
     In[1]: !mvim myfile.txt
 
@@ -171,7 +169,7 b' The line after the bang can call any program installed in the underlying'
 shell, and support variable expansion in the form of ``$variable`` or ``{variable}``.
 The later form of expansion supports arbitrary python expression:
 
-.. code-block::
+.. code-block:: ipython
 
     In[1]: file = 'myfile.txt'
 
@@ -185,14 +183,14 b' in a list-like object (:see:`IPython Slist`) and assign to the left hand side.'
 
 This allow you for example to put the list of files of the current working directory in a variable:
 
-.. code-block::
+.. code-block:: ipython
 
     In[1]: my_files != ls
 
 
 You can combine the different possibilities in for loops, condition, functions...:
 
-.. code-block::
+.. code-block:: ipython
 
     my_files =! ls ~/
     b = "backup file"
@@ -211,14 +209,14 b' power. Magic function start with a percent sign (``%``) or double percent (``%%`'
 
 A magic call with a sign percent will act only one line:
 
-.. code-block::
+.. code-block:: ipython
 
     In[1]: %xmode
     Exception reporting mode: Verbose
 
 And support assignment:
 
-.. code-block::
+.. code-block:: ipython
 
     In [1]: results = %timeit -r1 -n1 -o list(range(1000))
     1 loops, best of 1: 21.1 µs per loop
@@ -228,7 +226,7 b' And support assignment:'
 
 Magic with two percent sign can spread over multiple lines, but do not support assignment:
 
-.. code-block::
+.. code-block:: ipython
 
     In[1]: %%bash
     ...  : echo "My shell is:" $SHELL
@@ -246,6 +244,6 b' Magic with two percent sign can spread over multiple lines, but do not support a'
 Combining it all
 ----------------
 
-.. code-block::
+::
 
-    find a snippet that combine all that into one thing !
+    find a snippet that combine all that into one thing!