PEP 8 clean thanks to auto pep8

docs/conf.py

@@ -103,9 +103,9 @@ pygments_style = 'sphinx'
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 html_theme = 'default'
-#html_theme = 'nature'
+# html_theme = 'nature'
 
-#If uncommented it's turn off the default read the doc style
+# If uncommented it's turn off the default read the doc style
 html_style = "/default.css"
 
 # Theme options are theme-specific and customize the look and feel of a theme