[issue27749] python 3.5.2 maybe crash

[wevsty]

wevsty added the comment:

About the crash,python_d.exe crash dump download address is

http://o8z0k9748.bkt.clouddn.com/python_d_from_vs_20160813_930A2640.7z

Crash dump display,at the 
>	python35_d.dll!_Py_ForgetReference(_object * op) Line 1758	C
 	python35_d.dll!_Py_Dealloc(_object * op) Line 1786	C
 	python35_d.dll!tupledealloc(PyTupleObject * op) Line 236	C

I hope this can be helpful to you.

About the multiprocessing question
I modified my code becomes
def execute_select_command(command):
    values = []
    try:
        with Session_lock.G_Process_Lock:
            mp.util.info('test:lock:token: %r' % (Session_lock.G_Process_Lock._token,))
            mp.util.info('test:lock:handle: %r' % (Session_lock.G_Process_Lock._tls.connection._handle,))
            conn = sqlite3.connect(SQLite_DB_NAME,check_same_thread = False)
            cursor = conn.cursor()
            try:
                cursor.execute(command)
                values = cursor.fetchall()
            except Exception as e:
                pass
            finally:
                cursor.close()
                conn.close()
            return values
    except Exception as e:
        print(e)
        traceback.print_exc()
        mp.util.info('Exception:lock:token: %r' % (Session_lock.G_Process_Lock._token,))
        mp.util.info('Exception:lock:handle: %r' % (Session_lock.G_Process_Lock._tls.connection._handle,))
        pass
        return values
    finally:
        pass


After run，Console output

[INFO/SpawnPoolWorker-18] test:lock:token: Token(typeid='Lock', address='\\\\.\\pipe\\pyc-2876-0-n6aj8inv', id='d0b0efa7d0')
[INFO/SpawnPoolWorker-18] test:lock:handle: 720
[INFO/SpawnPoolWorker-17] test:lock:token: Token(typeid='Lock', address='\\\\.\\pipe\\pyc-2876-0-n6aj8inv', id='d0b0efa7d0')
[INFO/SpawnPoolWorker-17] test:lock:handle: 908
[INFO/SpawnPoolWorker-16] test:lock:token: Token(typeid='Lock', address='\\\\.\\pipe\\pyc-2876-0-n6aj8inv', id='d0b0efa7d0')
[INFO/SpawnPoolWorker-16] test:lock:handle: 744
WriteFile() argument 1 must be int, not None
[INFO/SpawnPoolWorker-16] Exception:lock:token: Token(typeid='Lock', address='\\\\.\\pipe\\pyc-2876-0-n6aj8inv', id='d0b0efa7d0')
[INFO/SpawnPoolWorker-16] Exception:lock:handle: 744
Could not find thread pid_2720_id_389212239784


this problem and crash both the use of multiprocessing lib after appears.Maybe these two issues are related.
If you need my full code or need to open a new issue, please let me know.Thinks

----------

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27749>
_______________________________________