プロジェクト作成時に pysqlite が無い場合のエラー

Creating and Initializing Project
Failed to create environment. global name 'sqlite' is not defined
Traceback (most recent call last):
  File "d:\usr\local\bin\python\Lib\site-packages\trac\scripts\admin.py", line 613, in do_initenv
    options=options)
  File "d:\usr\local\bin\python\Lib\site-packages\trac\env.py", line 145, in __init__
    self.create(options)
  File "d:\usr\local\bin\python\Lib\site-packages\trac\env.py", line 250, in create
    DatabaseManager(self).init_db()
  File "d:\usr\local\bin\python\Lib\site-packages\trac\db\api.py", line 70, in init_db
    connector.init_db(**args)
  File "d:\usr\local\bin\python\Lib\site-packages\trac\db\sqlite_backend.py", line 121, in init_db
    cnx = sqlite.connect(path, timeout=int(params.get('timeout', 10000)))
NameError: global name 'sqlite' is not defined
Failed to initialize environment. 1
Traceback (most recent call last):
  File "d:\usr\local\bin\python\Lib\site-packages\trac\scripts\admin.py", line 617, in do_initenv
    sys.exit(1)
SystemExit: 1