Pep8 corrections to docs/conf.py
diff --git a/docs/conf.py b/docs/conf.py
index 183145f..03a6f78 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -3,7 +3,7 @@
 # Cryptography documentation build configuration file, created by
 # sphinx-quickstart on Tue Aug  6 19:19:14 2013.
 #
-# This file is execfile()d with the current directory set to its containing dir.
+# This file is execfile()d with the current directory set to its containing dir
 #
 # Note that not all possible configuration values are present in this
 # autogenerated file.
@@ -11,21 +11,23 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-import sys, os
-
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 #sys.path.insert(0, os.path.abspath('.'))
 
-# -- General configuration -----------------------------------------------------
+# -- General configuration ----------------------------------------------------
 
 # If your documentation needs a minimal Sphinx version, state it here.
 #needs_sphinx = '1.0'
 
-# Add any Sphinx extension module names here, as strings. They can be extensions
-# coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
-extensions = ['sphinx.ext.autodoc', 'sphinx.ext.intersphinx', 'sphinx.ext.viewcode']
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions  coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
+extensions = [
+    'sphinx.ext.autodoc',
+    'sphinx.ext.intersphinx',
+    'sphinx.ext.viewcode',
+]
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
@@ -66,7 +68,7 @@
 # directories to ignore when looking for source files.
 exclude_patterns = ['_build']
 
-# The reST default role (used for this markup: `text`) to use for all documents.
+# The reST default role (used for this markup: `text`) to use for all documents
 #default_role = None
 
 # If true, '()' will be appended to :func: etc. cross-reference text.
@@ -87,7 +89,7 @@
 #modindex_common_prefix = []
 
 
-# -- Options for HTML output ---------------------------------------------------
+# -- Options for HTML output --------------------------------------------------
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
@@ -167,24 +169,24 @@
 htmlhelp_basename = 'Cryptographydoc'
 
 
-# -- Options for LaTeX output --------------------------------------------------
+# -- Options for LaTeX output -------------------------------------------------
 
 latex_elements = {
-# The paper size ('letterpaper' or 'a4paper').
-#'papersize': 'letterpaper',
+    # The paper size ('letterpaper' or 'a4paper').
+    #'papersize': 'letterpaper',
 
-# The font size ('10pt', '11pt' or '12pt').
-#'pointsize': '10pt',
+    # The font size ('10pt', '11pt' or '12pt').
+    #'pointsize': '10pt',
 
-# Additional stuff for the LaTeX preamble.
-#'preamble': '',
+    # Additional stuff for the LaTeX preamble.
+    #'preamble': '',
 }
 
 # Grouping the document tree into LaTeX files. List of tuples
-# (source start file, target name, title, author, documentclass [howto/manual]).
+# (source start file, target name, title, author, documentclass [howto/manual])
 latex_documents = [
-  ('index', 'Cryptography.tex', u'Cryptography Documentation',
-   u'Individual Contributors', 'manual'),
+    ('index', 'Cryptography.tex', u'Cryptography Documentation',
+        u'Individual Contributors', 'manual'),
 ]
 
 # The name of an image file (relative to this directory) to place at the top of
@@ -208,28 +210,29 @@
 #latex_domain_indices = True
 
 
-# -- Options for manual page output --------------------------------------------
+# -- Options for manual page output -------------------------------------------
 
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
     ('index', 'cryptography', u'Cryptography Documentation',
-     [u'Individual Contributors'], 1)
+        [u'Individual Contributors'], 1)
 ]
 
 # If true, show URL addresses after external links.
 #man_show_urls = False
 
 
-# -- Options for Texinfo output ------------------------------------------------
+# -- Options for Texinfo output -----------------------------------------------
 
 # Grouping the document tree into Texinfo files. List of tuples
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-  ('index', 'Cryptography', u'Cryptography Documentation',
-   u'Individual Contributors', 'Cryptography', 'One line description of project.',
-   'Miscellaneous'),
+    ('index', 'Cryptography', u'Cryptography Documentation',
+        u'Individual Contributors', 'Cryptography',
+        'One line description of project.',
+        'Miscellaneous'),
 ]
 
 # Documents to append as an appendix to all manuals.