from pysqlite2 import dbapi2 as sqlite
import os, sys

mypath = os.path.dirname(os.path.abspath(__file__))
databasedir = os.path.join(mypath, 'a.db')


class DataBase(object):
	databasedir = os.path.join( os.path.abspath(sys.argv[0]), 'brain.db')

	def connect(self):
		self.con = sqlite.connect(databasedir)
		self.cur = con.cursor()
	
	def show_commands(self):
		self.connect()
		self.cur.execute('SELECT command FROM knowledge')
		a = ''
		for output in self.cur.fetchall():
			a += output + ' | '
		return  a
	
	def write_to(self, command, text):
		self.connect()
		self.cur.execute('INSERT INTO knowledge (command, text) VALUES (?, ?)', (command, text))
		self.con.commit()
		
		
print ' *************************************\n'
print mypath, '      ', databasedir
print ' *************************************\n'
@@print DataBase.show_commands()
print ' *************************************\n'



Traceback (most recent call last):
  File "a.py", line 32, in ?
    print DataBase.show_commands()
TypeError: unbound method show_commands() must be called with DataBase instance as first argument (got nothing instead)