I have formatted the traceback below to make it easier to recognize the repeated lines.

You need to examine your code and understand why it loops infinitely through these five lines :

1. orm.py (399) -- read table
2. orm.py (3604) -- read flat
3. orm.py (3724) -- columns[f].get()
4. fields.py (1131) -- execute anonymous function
5. fields.py (1197) -- fnct_read value = value[field] or False

Line #5 apparently calls line #1, over and over again, without finding any reason to stop.

Are you certain that the variable f in line #3 is in fact being incremented (or decremented)? If neither, then you will know why your loop gets excremented.

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 399, in __getitem__ field_values = self._table.read(self._cr, self._uid, ids, field_names, context=self._context, load="_classic_write")

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 3604, in read result = self._read_flat(cr, user, select, fields, context, load)

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 3724, in _read_flat res2 = self._columns[f].get(cr, self, ids, f, user, context=context, values=res)

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\fields.py", line 1131, in get result = self._fnct(obj, cr, uid, ids, name, self._arg, context)

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\fields.py", line 1197, in _fnct_read value = value[field] or False



File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 399, in __getitem__ field_values = self._table.read(self._cr, self._uid, ids, field_names, context=self._context, load="_classic_write")

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 3604, in read result = self._read_flat(cr, user, select, fields, context, load)

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 3724, in _read_flat res2 = self._columns[f].get(cr, self, ids, f, user, context=context, values=res)

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\fields.py", line 1131, in get result = self._fnct(obj, cr, uid, ids, name, self._arg, context) 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\fields.py", line 1197, in _fnct_read value = value[field] or False 



File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 399, in __getitem__ field_values = self._table.read(self._cr, self._uid, ids, field_names, context=self._context, load="_classic_write") 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 3604, in read result = self._read_flat(cr, user, select, fields, context, load) 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 3724, in _read_flat res2 = self._columns[f].get(cr, self, ids, f, user, context=context, values=res) 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\fields.py", line 1131, in get result = self._fnct(obj, cr, uid, ids, name, self._arg, context) File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\fields.py", line 1197, in _fnct_read value = value[field] or False 



File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 399, in __getitem__ field_values = self._table.read(self._cr, self._uid, ids, field_names, context=self._context, load="_classic_write") 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 3604, in read result = self._read_flat(cr, user, select, fields, context, load) 


File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 3680, in _read_flat res2 = self.pool.get(table).read(cr, user, [x[col] for x in res], cols, context, load) 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 3597, in read self.check_access_rights(cr, user, 'read') 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\osv\orm.py", line 3878, in check_access_rights return self.pool.get('ir.model.access').check(cr, uid, self._name, operation, raise_exception) 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\tools\cache.py", line 18, in lookup r = self.lookup(self2, cr, args) 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\tools\cache.py", line 41, in lookup r = d[key] 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\tools\func.py", line 35, in wrapper return func(self, *args, *kwargs) 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\tools\lru.py", line 38, in __getitem__ self[a[0]] = a[1] 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\tools\func.py", line 35, in wrapper return func(self, args, *kwargs) 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\tools\lru.py", line 44, in __setitem__ del self[obj] 

File "C:\Eclipse\workspace\epsv36\PTFMedicaleRA\openerp\tools\func.py", line 37, in wrapper lock.release() 

File "C:\APPLI\Python27x86\lib\threading.py", line 151, in release self._note("%s.release(): non-final release", self) RuntimeError: maximum recursion depth exceeded