Module used to load/store object from/to shelve database.
In python 2.7, there is no context manager for shelve. So this is it.
Class that can save and load itself to shelve.
Path to the database file.
Path to the log file.
Is the logging enabled?
Log the message to the log.
Parameters: msg (str) – Message which should be logged.
Save this object to shelve.
Load the database from the shelve fn.
RequestDatabaseinstance from the fn or newly