Merge pull request realpython#29 from kisielk/style

Wrote up the idioms section

Author: Kenneth Reitz

docs/writing/code-style.rst

@@ -5,10 +5,50 @@ Code Style
 Idioms
 ::::::
 
+Idiomatic Python code is often referred to as being *pythonic*.
+
 
 Zen of Python
 -------------
 
+Also known as PEP 20, the guiding principles for Python's design.
+
+::
+
+    >>> import this
+
+See `<http://stackoverflow.com/questions/228181/the-zen-of-python>`_ for some
+examples.
+
+PEP 8
+-----
+
+PEP 8 is the de-facto code style guide for Python.
+
+    `PEP 8 <http://www.python.org/dev/peps/pep-0008/>`_
+
+There exists a command-line program, `pep8` that can check your code for
+conformance.
+
+::
+
+    pip install pep8
+
+
+Simply run it on a file or series of files and get a report of any
+violations
+
+::
+
+    $ pep8 optparse.py
+    optparse.py:69:11: E401 multiple imports on one line
+    optparse.py:77:1: E302 expected 2 blank lines, found 1
+    optparse.py:88:5: E301 expected 1 blank line, found 0
+    optparse.py:222:34: W602 deprecated form of raising exception
+    optparse.py:347:31: E211 whitespace before '('
+    optparse.py:357:17: E201 whitespace after '{'
+    optparse.py:472:29: E221 multiple spaces before operator
+    optparse.py:544:21: W601 .has_key() is deprecated, use 'in'
 
-PEP-8
------
+Conforming your style to PEP 8 is generally a good idea and helps make code a lot
+more consistent when working on projects with other developers.