SQLite3 to Tab-Delimiter Text file converter

sqlite3-to-tsv.py

#!/usr/bin/python

# .-=[ sql3-to-tab ]=======================================================-. #
# |   SQLite3 to Tab-Delimited TXT Converter by IceDragon of QuickFox.org   | #
# |-------------------------------------------------------------------------| #
# | This script converts an SQLite3 database to a tab-delimited text file.  | #
# | Particularly useful to export data from a database into applications    | #
# | that allow it.                                                          | #
# |-------------------------------------------------------------------------| #
# | NOTE: This script does not yet support \n characters in entries!        | #
# '-=============================================================[ 1.0.0 ]=-' #

###--# Imports #--###
import sqlite3

from sys import argv

__author__ = "Kyle Storm <icedragon@quickfox.org>"


###--# Entrypoint #--###
def main( argv ):
    # Handling command-line parameters.
    if len(argv) < 3:
        print "Syntax: %s <db_file> <table> [out_file]" % argv[0]
        raise SystemExit(0)

    cmd, db_file, table = argv[:3]
    if len(argv) > 3:
        out_file = argv[3]
    else:
        out_file = db_file.rsplit('.',1)[0] + '.txt'


    # Getting data from the database.
    data = sqlite3.connect( db_file ).execute("SELECT * FROM %s" % table).fetchall()

    # Opening output file.
    fd = open( out_file, 'w' )

    counter = 0
    for entry in data:
        # Ensuring the entry list is all strings. join() would fail otherwise.
        entry_list = []
        for element in entry:
            entry_list += [ str(element) ]
        fd.write( "\t".join( entry_list ) + "\n" )
        counter += 1

    fd.close()
    print "%d entries exported to %s" % (counter,out_file)
    raise SystemExit(0)


###--# Initialization #--###
if __name__ == "__main__":
    main( argv )