Odoo - emulate SERIALIZATION_FAILURE

SERIALIZATION_FAILURE.py

import threading
import time

def transaction_1():
    env = self.env(context={'active_test': False})
    with env.registry.cursor() as cr:
        env1 = self.env(cr=cr)
        lines = env1['account.bank.statement.line'].browse(st_lines.ids)
        lines.write({'field_name': 'value'})
        time.sleep(2)  # Simulate delay to overlap with transaction_2

def transaction_2():
    env = self.env(context={'active_test': False})
    with env.registry.cursor() as cr:
        env2 = self.env(cr=cr)
        lines = env2['account.bank.statement.line'].browse(st_lines.ids)
        lines.write({'field_name': 'value'})

t1 = threading.Thread(target=transaction_1)
t2 = threading.Thread(target=transaction_2)
t1.start()
t2.start()
t1.join()
t2.join()