Command failed:
Traceback (most recent call last):
  File "/usr/local/lib/python2.5/site-packages/trac/scripts/admin.py", line 96, in onecmd
    rv = cmd.Cmd.onecmd(self, line) or 0
  File "/usr/local/lib/python2.5/cmd.py", line 219, in onecmd
    return func(arg)
  File "/usr/local/lib/python2.5/site-packages/trac/scripts/admin.py", line 1009, in do_milestone
    self._do_milestone_set_completed(arg[1], arg[2])
  File "/usr/local/lib/python2.5/site-packages/trac/scripts/admin.py", line 1041, in _do_milestone_set_completed
    milestone = Milestone(self.env_open(), name)
  File "/usr/local/lib/python2.5/site-packages/trac/ticket/model.py", line 552, in __init__
    self._fetch(name, db)
  File "/usr/local/lib/python2.5/site-packages/trac/ticket/model.py", line 561, in _fetch
    db = self.env.get_db_cnx()
  File "/usr/local/lib/python2.5/site-packages/trac/env.py", line 182, in get_db_cnx
    return DatabaseManager(self).get_connection()
  File "/usr/local/lib/python2.5/site-packages/trac/db/api.py", line 75, in get_connection
    return self._cnx_pool.get_cnx(self.timeout or None)
  File "/usr/local/lib/python2.5/site-packages/trac/db/pool.py", line 101, in get_cnx
    cnx = self._connector.get_connection(**self._kwargs)
  File "/usr/local/lib/python2.5/site-packages/trac/db/sqlite_backend.py", line 113, in get_connection
    return SQLiteConnection(path, params)
  File "/usr/local/lib/python2.5/site-packages/trac/db/sqlite_backend.py", line 140, in __init__
    assert have_pysqlite > 0
AssertionError