subscribe error

[JasonLinZh]

Get stuck at drift_client.subscribe()

driftpy version: 0.7.39

async def main():
    subaccount_id = 0
    spot_market_index = 0
    market_index = 0
    drift_client = DriftClient(connection, wallet, "mainnet",
                     account_subscription=AccountSubscriptionConfig("websocket"),
                     )
    await drift_client.add_user(subaccount_id)
    await drift_client.subscribe()

loop = asyncio.new_event_loop()
answer = loop.run_until_complete(main())

here is the error message:

Traceback (most recent call last):
  File "/Users/jason/theplatform/test_drift.py", line 109, in <module>
    answer = loop.run_until_complete(main())
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jason/anaconda3/lib/python3.11/asyncio/base_events.py", line 653, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/Users/jason/theplatform/test_drift.py", line 105, in main
    await drift_client.subscribe()
  File "/Users/jason/anaconda3/lib/python3.11/site-packages/driftpy/drift_client.py", line 143, in subscribe
    await self.account_subscriber.subscribe()
  File "/Users/jason/anaconda3/lib/python3.11/site-packages/driftpy/accounts/ws/drift_client.py", line 71, in subscribe
    ) = await find_all_market_and_oracles(self.program, data_and_slots=True)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jason/anaconda3/lib/python3.11/site-packages/driftpy/constants/config.py", line 138, in find_all_market_and_oracles
    perp_slot = int(parsed_resp.result["context"]["slot"])
                    ^^^^^^^^^^^^^^^^^^
AttributeError: 'Error' object has no attribute 'result'

[soundsonacid]

don't use public mainnet beta url it doesn't support gpa

use alchemy or helius free