(self, cmd)
backup ?DB? FILE: Backup DB (default "main") to FILE

        Copies the contents of the current database to FILE
        overwriting whatever was in FILE.  If you have attached databases
        then you can specify their name instead of the default of "main".

        The backup is done at the page level - SQLite copies the pages
        as is.  There is no round trip through SQL code.
backup ?DB? FILE: Backup DB (default "main") to FILE
backup ?DB? FILE : Backup DB ( default main ) to FILE
def command_backup(self, cmd):
        """backup ?DB? FILE: Backup DB (default "main") to FILE

        Copies the contents of the current database to FILE
        overwriting whatever was in FILE.  If you have attached databases
        then you can specify their name instead of the default of "main".

        The backup is done at the page level - SQLite copies the pages
        as is.  There is no round trip through SQL code.
        """
        dbname = "main"
        if len(cmd) == 1:
            fname = cmd[0]
        elif len(cmd) == 2:
            dbname = cmd[0]
            fname = cmd[1]
        else:
            raise self.Error("Backup takes one or two parameters")
        out = apsw.Connection(fname)
        b = out.backup("main", self.db, dbname)
        try:
            while not b.done:
                b.step()
        finally:
            b.finish()
            out.close()
def command_backup ( self , cmd ) : dbname = "main" if len ( cmd ) == 1 : fname = cmd [ 0 ] elif len ( cmd ) == 2 : dbname = cmd [ 0 ] fname = cmd [ 1 ] else : raise self . Error ( "Backup takes one or two parameters" ) out = apsw . Connection ( fname ) b = out . backup ( "main" , self . db , dbname ) try : while not b . done : b . step ( ) finally : b . finish ( ) out . close ( )