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fix annotation recursive error

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Young
2021-07-06 05:20:53 +00:00
parent 50c0e99f98
commit cb72857710
2 changed files with 16 additions and 3 deletions
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12
qlib/backtest/__init__.py
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@@ -1,9 +1,13 @@
# Copyright (c) Microsoft Corporation. # Copyright (c) Microsoft Corporation.
# Licensed under the MIT License. # Licensed under the MIT License.
from __future__ import annotations
import copy import copy
from typing import Union from typing import Union, TYPE_CHECKING
from .account import Account from .account import Account
if TYPE_CHECKING:
from ..strategy.base import BaseStrategy
from .exchange import Exchange from .exchange import Exchange
from .executor import BaseExecutor from .executor import BaseExecutor
from .backtest import backtest_loop from .backtest import backtest_loop
@@ -11,7 +15,6 @@ from .backtest import collect_data_loop
from .utils import CommonInfrastructure from .utils import CommonInfrastructure
from .order import Order from .order import Order
from ..strategy.base import BaseStrategy
from ..utils import init_instance_by_config from ..utils import init_instance_by_config
from ..log import get_module_logger from ..log import get_module_logger
from ..config import C from ..config import C
@@ -137,6 +140,11 @@ def get_strategy_executor(
pos_type: str = "Position", pos_type: str = "Position",
): ):
# NOTE:
# - for avoiding recursive import
# - typing annotations is not reliable
from ..strategy.base import BaseStrategy
trade_account = create_account_instance( trade_account = create_account_instance(
start_time=start_time, end_time=end_time, benchmark=benchmark, account=account, pos_type=pos_type start_time=start_time, end_time=end_time, benchmark=benchmark, account=account, pos_type=pos_type
) )

7
qlib/backtest/backtest.py
View File

@@ -1,7 +1,12 @@
# Copyright (c) Microsoft Corporation. # Copyright (c) Microsoft Corporation.
# Licensed under the MIT License. # Licensed under the MIT License.
from __future__ import annotations
from qlib.backtest.order import BaseTradeDecision from qlib.backtest.order import BaseTradeDecision
from qlib.strategy.base import BaseStrategy from typing import TYPE_CHECKING
if TYPE_CHECKING:
from qlib.strategy.base import BaseStrategy
from qlib.backtest.executor import BaseExecutor from qlib.backtest.executor import BaseExecutor
from ..utils.time import Freq from ..utils.time import Freq
from tqdm.auto import tqdm from tqdm.auto import tqdm