In pump_mbf.py you have MIN_SQLITE_VERSION = '3.3'
The current version of SQLite is 3.14.2:
http://www.sqlite.org/releaselog/3_14_2.html
This results in pump_mbf.py throwing:
sys.exit("Error: could not import required version of sqlite3 module")
Change the line to MIN_SQLITE_VERSION = '3.14' or similar.
Cheers.