Error emitted on keyboard interrupt

[seanders]

Hi there,

I'm seeing this error stacktrace when killing a lumibot process via the keyboard interrupt.

^C2024-03-22 22:40:13,741: asyncio: INFO: [MyStrategy] Executing the on_abrupt_closing event method
Breaking loop because should not continue.
Traceback (most recent call last):
  File "/Users/sean/workspace/trading_bot_test/./executeStrategies.py", line 43, in <module>
    trader.run_all()
  File "/usr/local/lib/python3.11/site-packages/lumibot/traders/trader.py", line 117, in run_all
    self._join_pool()
  File "/usr/local/lib/python3.11/site-packages/lumibot/traders/trader.py", line 197, in _join_pool
    strategy_thread.join()
  File "/usr/local/lib/python3.11/site-packages/lumibot/strategies/strategy_executor.py", line 245, in join
    super(StrategyExecutor, self).join(timeout)
  File "/usr/local/Cellar/python@3.11/3.11.4_1/Frameworks/Python.framework/Versions/3.11/lib/python3.11/threading.py", line 1112, in join
    self._wait_for_tstate_lock()
  File "/usr/local/Cellar/python@3.11/3.11.4_1/Frameworks/Python.framework/Versions/3.11/lib/python3.11/threading.py", line 1132, in _wait_for_tstate_lock
    if lock.acquire(block, timeout):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/lumibot/traders/trader.py", line 207, in _stop_pool
    strategy_thread.stop()
  File "/usr/local/lib/python3.11/site-packages/lumibot/strategies/strategy_executor.py", line 242, in stop
    self._on_abrupt_closing(KeyboardInterrupt())
  File "/usr/local/lib/python3.11/site-packages/lumibot/strategies/strategy_executor.py", line 438, in _on_abrupt_closing
    self.strategy._dump_stats()
  File "/usr/local/lib/python3.11/site-packages/lumibot/strategies/_strategy.py", line 572, in _dump_stats
    if self._backtesting_start is not None and self._backtesting_end is not None:
       ^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'MyStrategy' object has no attribute '_backtesting_start'. Did you mean: 'backtesting_start'?

[jimwhite]

Are you backtesting the strategy or live/paper trading? If backtesting did you set a start time one way or another? It looks to me as though _Strategy._dump_stats will fail this way when not backtesting because _backtesting_start is only set when _is_backtesting is True.