flake8 fix

freqtrade/optimize/base_analysis.py

@@ -1,18 +1,11 @@
 import logging
-import shutil
 from copy import deepcopy
-from datetime import datetime, timedelta, timezone
-from pathlib import Path
-from typing import Any, Dict, List, Optional
+from datetime import datetime, timezone
+from typing import Any, Dict, Optional
 
 from pandas import DataFrame
 
 from freqtrade.configuration import TimeRange
-from freqtrade.data.history import get_timerange
-from freqtrade.exchange import timeframe_to_minutes
-from freqtrade.loggers.set_log_levels import (reduce_verbosity_for_bias_tester,
-                                              restore_verbosity_for_bias_tester)
-from freqtrade.optimize.backtesting import Backtesting
 
 
 logger = logging.getLogger(__name__)

freqtrade/optimize/lookahead_analysis.py

@@ -1,9 +1,9 @@
 import logging
 import shutil
 from copy import deepcopy
-from datetime import datetime, timedelta, timezone
+from datetime import datetime, timedelta
 from pathlib import Path
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, List
 
 from pandas import DataFrame
 
@@ -13,7 +13,7 @@ from freqtrade.exchange import timeframe_to_minutes
 from freqtrade.loggers.set_log_levels import (reduce_verbosity_for_bias_tester,
                                               restore_verbosity_for_bias_tester)
 from freqtrade.optimize.backtesting import Backtesting
-from freqtrade.optimize.base_analysis import BaseAnalysis, VarHolder
+from freqtrade.optimize.base_analysis import BaseAnalysis
 
 
 logger = logging.getLogger(__name__)

freqtrade/optimize/recursive_analysis.py

@@ -1,13 +1,12 @@
 import logging
 import shutil
 from copy import deepcopy
-from datetime import datetime, timedelta, timezone
+from datetime import timedelta
 from pathlib import Path
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, List
 
 from pandas import DataFrame
 
-from freqtrade.configuration import TimeRange
 from freqtrade.exchange import timeframe_to_minutes
 from freqtrade.loggers.set_log_levels import (reduce_verbosity_for_bias_tester,
                                               restore_verbosity_for_bias_tester)