download orderbook data (#1754)

* download orderbook data

* fix CI error

* fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* test fix CI error

* optimize get_data code

* optimize get_data code

* optimize get_data code

* optimize README

---------

Co-authored-by: Linlang <v-linlanglv@microsoft.com>

qlib/contrib/eva/alpha.py

@@ -3,6 +3,7 @@ Here is a batch of evaluation functions.
 
 The interface should be redesigned carefully in the future.
 """
+
 import pandas as pd
 from typing import Tuple
 from qlib import get_module_logger

qlib/contrib/model/pytorch_tra.py

@@ -511,7 +511,6 @@ class TRAModel(Model):
 
 
 class RNN(nn.Module):
-
     """RNN Model
 
     Args:
@@ -601,7 +600,6 @@ class PositionalEncoding(nn.Module):
 
 
 class Transformer(nn.Module):
-
     """Transformer Model
 
     Args:
@@ -649,7 +647,6 @@ class Transformer(nn.Module):
 
 
 class TRA(nn.Module):
-
     """Temporal Routing Adaptor (TRA)
 
     TRA takes historical prediction errors & latent representation as inputs,

qlib/contrib/strategy/signal_strategy.py

@@ -373,7 +373,6 @@ class WeightStrategyBase(BaseSignalStrategy):
 
 
 class EnhancedIndexingStrategy(WeightStrategyBase):
-
     """Enhanced Indexing Strategy
 
     Enhanced indexing combines the arts of active management and passive management,