import os

ZODB_STORAGE = os.environ.get('ZODB_STORAGE', '')
if not ZODB_STORAGE:
    raise "NoStorageInEnvironmentError"

try:
    stg = eval(ZODB_STORAGE)
except:
    stg = ZODB_STORAGE

if type(stg) is type(''):
    from ZODB.FileStorage import FileStorage
    Storage = FileStorage(stg)
else:
    from ZEO.ClientStorage import ClientStorage
    Storage = ClientStorage(stg, name='ZEO server on %s' % stg[0])