If you want to create a model in OpenERP use like below code -

from openerp.osv import fields, osv
class course(osv.osv):
    _name='course'
    _columns= {
               'name':fields.char("Name",size=128,domain=[('name', '=',2)]),
               'gender':fields.boolean('Male'),
               'description':fields.char("description",size=200),
               'persons_id':fields.many2one('res.users' ,'person'),
               'session':fields.one2many('session' ,'course','Session'),
               "qualification" : fields.selection([('a1','Undergraduate X'),('a2','Graduate'),('a3','Post Graduate')],"Education Qualification"),
               "termination1" : fields.many2one('hr.role1',' Termination'),  
               }