sb_dbexpimp - Online in the Cloud

PROGRAM:

NAME

sb_dbexpimp.py - Bayes database export/import

DESCRIPTION

This utility has the primary function of exporting and importing a spambayes database
into/from a CSV file. This is useful in a number of scenarios.

Platform portability of database - CSV files can be exported and imported across
platforms (Windows and Linux, for example).

Database implementation changes - databases can survive database implementation
upgrades or new database implementations. For example, if a dbm implementation
changes between python x.y and python x.y+1...

Database reorganization - an export followed by an import reorgs an existing
database, <theoretically> improving performance, at least in some database
implementations.

Database sharing - it is possible to distribute particular databases for research
purposes, database sharing purposes, or for new users to have a 'seed' database to
start with.

Database merging - multiple databases can be merged into one quite easily by
specifying -m on an import. This will add the two database nham and nspams
together and for wordinfo conflicts, will add spamcount and hamcount together.

Usage:
sb_dbexpimp [options]

options:

-e : export

-i : import

-f: FN : flat file to export to or import from -p: FN : name of pickled database
file to use -d: FN : name of dbm database file to use -m : merge import into an
existing database file. This is

meaningful only for import. If omitted, a new database file will be created. If
specified, the imported wordinfo will be merged into an existing database. Run
dbExpImp -h for more information.

-o: section:option:value :

set [section, option] in the options database to value

-h : help

If neither -p nor -d is specified, then the values in your configuration file (or failing
that, the defaults) will be used. In this way, you may convert to and from storage
formats other than pickle and dbm.

Export pickled mybayes.db into mybayes.db.export as a CSV file

sb_dbexpimp -e -p mybayes.db -f mybayes.db.export

Import mybayes.db.export into a new DBM mybayes.db

sb_dbexpimp -i -d mybayes.db -f mybayes.db.export

Convert a bayes database from pickle to DBM

sb_dbexpimp -e -p abayes.db -f abayes.export sb_dbexpimp -i -d abayes.db -f
abayes.export

Create a new DBM database (newbayes.db) from two

DBM databases (abayes.db, bbayes.db) sb_dbexpimp -e -d abayes.db -f abayes.export
sb_dbexpimp -e -d bbayes.db -f bbayes.export sb_dbexpimp -i -d newbayes.db -f
abayes.export sb_dbexpimp -i -m -d newbayes.db -f bbayes.export

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