Merge pull request #1 from epadillas/master

From pickle to sqlite3
Use correct argument

Signed-off-by: Hector Acosta <hector.acosta@gmail.com>
Do not exit from the __init__ method.

Instead, reaise an exception and catch it in main()

Signed-off-by: Hector Acosta <hector.acosta@gmail.com>
Use correct object

Signed-off-by: Hector Acosta <hector.acosta@gmail.com>