Python Sqlite3

sqlite3.py

import sqlite3
#python 3.4

# This fails with key of site_title
db.execute("SELECT * FROM options WHERE key=?;", (key.encode('utf-8'),))

# This works...
db.execute("SELECT * FROM options WHERE key='site_title';")

# This says I have supplied to many arguments...
db.execute("SELECT * FROM options WHERE key='?';", (key.encode('utf-8'),))

Error from first output when i try and access it using fetchone()[0]

Traceback (most recent call last):
  File "/usr/local/lib/python3.4/dist-packages/cherrypy/_cprequest.py", line 670, in respond
    response.body = self.handler()
  File "/usr/local/lib/python3.4/dist-packages/cherrypy/lib/encoding.py", line 217, in __call__
    self.body = self.oldhandler(*args, **kwargs)
  File "/usr/local/lib/python3.4/dist-packages/cherrypy/_cpdispatch.py", line 61, in __call__
    return self.callable(*self.args, **self.kwargs)
  File "/home/mschuett/python/CherryBlog/CherryBlog/admin.py", line 49, in settings
    title = admin.AdminModel.getKey("site_title")
  File "/home/mschuett/python/CherryBlog/CherryBlog/models/admin.py", line 63, in getKey
    return cursor.fetchone()[1]
TypeError: 'NoneType' object is not subscriptable

repr output of key 'site_title'