chore(main): release 0.9.8

.gitignore

@@ -22,7 +22,6 @@ dist/
 qlib/VERSION.txt
 qlib/data/_libs/expanding.cpp
 qlib/data/_libs/rolling.cpp
-qlib/_version.py
 examples/estimator/estimator_example/
 examples/rl/data/
 examples/rl/checkpoints/

CHANGELOG.md

@@ -0,0 +1,14 @@
+# Changelog
+
+## [0.9.8](https://github.com/microsoft/qlib/compare/v0.9.7...v0.9.8) (2025-11-13)
+
+
+### Bug Fixes
+
+* download orderbook data error ([#1990](https://github.com/microsoft/qlib/issues/1990)) ([136b2dd](https://github.com/microsoft/qlib/commit/136b2ddf9a16e4106d62b8d1336a56273a8abef0))
+* **gbdt:** correct dtrain assignment in finetune() to use Dataset instead of tuple ([#2049](https://github.com/microsoft/qlib/issues/2049)) ([2b41782](https://github.com/microsoft/qlib/commit/2b41782f0cfb81e8cc065f2915b215758a7838ef))
+* **macd:** remove extra division by close in DEA calculation to ensure dimension consistency ([#2046](https://github.com/microsoft/qlib/issues/2046)) ([66c3622](https://github.com/microsoft/qlib/commit/66c36226aafceabe497e5967f67921e5d3c9d497))
+* replace deprecated pandas fillna(method=) with ffill()/bfill() ([#1987](https://github.com/microsoft/qlib/issues/1987)) ([7095e75](https://github.com/microsoft/qlib/commit/7095e755fa57e011f0483d24b45fc5bd5a4deaf8))
+* spelling errors ([#1996](https://github.com/microsoft/qlib/issues/1996)) ([f26b341](https://github.com/microsoft/qlib/commit/f26b3417363410531dbbb39e425bce6cf05528a1))
+* the bug when auto_mount=True ([#2009](https://github.com/microsoft/qlib/issues/2009)) ([213eb6c](https://github.com/microsoft/qlib/commit/213eb6c2cd12342b6ec98f21300217e1659f3d58))
+* typo in integration documentation: 'userd' -> 'used' ([#2034](https://github.com/microsoft/qlib/issues/2034)) ([3dc5a7d](https://github.com/microsoft/qlib/commit/3dc5a7d299074f0fa45a4b7bb50ab446a8824a32))

Makefile

@@ -74,37 +74,34 @@ prerequisite:
 
 # Install the package in editable mode.
 dependencies:
-	python -m pip install --no-cache-dir -e .
+	python -m pip install -e .
 
 lightgbm:
-	python -m pip install --no-cache-dir lightgbm --prefer-binary
+	python -m pip install lightgbm --prefer-binary
 
 rl:
-	python -m pip install --no-cache-dir -e .[rl]
+	python -m pip install -e .[rl]
 
 develop:
-	python -m pip install --no-cache-dir -e .[dev]
+	python -m pip install -e .[dev]
 
 lint:
-	python -m pip install --no-cache-dir -e .[lint]
+	python -m pip install -e .[lint]
 
 docs:
-	python -m pip install --no-cache-dir -e .[docs]
+	python -m pip install -e .[docs]
 
 package:
-	python -m pip install --no-cache-dir -e .[package]
+	python -m pip install -e .[package]
 
 test:
-	python -m pip install --no-cache-dir -e .[test]
+	python -m pip install -e .[test]
 
 analysis:
-	python -m pip install --no-cache-dir -e .[analysis]
-
-client:
-	python -m pip install --no-cache-dir -e .[client]
+	python -m pip install -e .[analysis]
 
 all:
-	python -m pip install --no-cache-dir -e .[pywinpty,dev,lint,docs,package,test,analysis,rl]
+	python -m pip install -e .[pywinpty,dev,lint,docs,package,test,analysis,rl]
 
 install: prerequisite dependencies
 

pyproject.toml

@@ -69,10 +69,8 @@ rl = [
   "torch",
   "numpy<2.0.0",
 ]
-# We exclude black version 26.1.0 due to known issues with nbqa when formatting Jupyter notebooks,
-# which can cause false-positive --check results and inconsistent notebook formatting.
 lint = [
-  "black!=26.1.0",
+  "black",
   "pylint",
   "mypy<1.5.0",
   "flake8",
@@ -103,10 +101,6 @@ analysis = [
   "plotly",
   "statsmodels",
 ]
-client = [
-  "python-socketio<6",
-  "tables",
-]
 
 # In the process of releasing a new version, when checking the manylinux package with twine, an error is reported:
 # InvalidDistribution: Invalid distribution metadata: unrecognized or malformed field 'license-file'

qlib/cli/run.py

@@ -87,7 +87,7 @@ def workflow(config_path, experiment_name="workflow", uri_folder="mlruns"):
     """
     This is a Qlib CLI entrance.
     User can run the whole Quant research workflow defined by a configure file
-    - the code is located here ``qlib/cli/run.py``
+    - the code is located here ``qlib/cli/run.py`
 
     User can specify a base_config file in your workflow.yml file by adding "BASE_CONFIG_PATH".
     Qlib will load the configuration in BASE_CONFIG_PATH first, and the user only needs to update the custom fields

qlib/contrib/model/pytorch_nn.py

@@ -10,7 +10,6 @@ import os
 import gc
 import numpy as np
 import pandas as pd
-from packaging import version
 from typing import Callable, Optional, Text, Union
 from sklearn.metrics import roc_auc_score, mean_squared_error
 
@@ -149,7 +148,7 @@ class DNNModelPytorch(Model):
         if scheduler == "default":
             # In torch version 2.7.0, the verbose parameter has been removed. Reference Link:
             # https://github.com/pytorch/pytorch/pull/147301/files#diff-036a7470d5307f13c9a6a51c3a65dd014f00ca02f476c545488cd856bea9bcf2L1313
-            if version.parse(str(torch.__version__).split("+", maxsplit=1)[0]) <= version.parse("2.6.0"):
+            if str(torch.__version__).split("+", maxsplit=1)[0] <= "2.6.0":
                 # Reduce learning rate when loss has stopped decrease
                 self.scheduler = torch.optim.lr_scheduler.ReduceLROnPlateau(  # pylint: disable=E1123
                     self.train_optimizer,

qlib/contrib/rolling/ddgda.py

@@ -14,7 +14,6 @@ from qlib.model.meta.task import MetaTask
 from qlib.model.trainer import TrainerR
 from qlib.typehint import Literal
 from qlib.utils import init_instance_by_config
-from qlib.utils.pickle_utils import restricted_pickle_load
 from qlib.workflow import R
 from qlib.workflow.task.utils import replace_task_handler_with_cache
 
@@ -299,7 +298,7 @@ class DDGDA(Rolling):
         # but their task test segment are not aligned! It worked in my previous experiment.
         # So the misalignment will not affect the effectiveness of the method.
         with self._internal_data_path.open("rb") as f:
-            internal_data = restricted_pickle_load(f)
+            internal_data = pickle.load(f)
 
         md = MetaDatasetDS(exp_name=internal_data, **kwargs)
 
@@ -361,7 +360,7 @@ class DDGDA(Rolling):
         )
 
         with self._internal_data_path.open("rb") as f:
-            internal_data = restricted_pickle_load(f)
+            internal_data = pickle.load(f)
         mds = MetaDatasetDS(exp_name=internal_data, **kwargs)
 
         # 3) meta model make inference and get new qlib task

qlib/contrib/tuner/tuner.py

@@ -8,6 +8,7 @@ import os
 import yaml
 import json
 import copy
+import pickle
 import logging
 import importlib
 import subprocess
@@ -17,7 +18,6 @@ import numpy as np
 from abc import abstractmethod
 
 from ...log import get_module_logger, TimeInspector
-from ...utils.pickle_utils import restricted_pickle_load
 from hyperopt import fmin, tpe
 from hyperopt import STATUS_OK, STATUS_FAIL
 
@@ -136,7 +136,7 @@ class QLibTuner(Tuner):
         exp_result_dir = os.path.join(self.ex_dir, QLibTuner.EXP_RESULT_DIR.format(estimator_ex_id))
         exp_result_path = os.path.join(exp_result_dir, QLibTuner.EXP_RESULT_NAME)
         with open(exp_result_path, "rb") as fp:
-            analysis_df = restricted_pickle_load(fp)
+            analysis_df = pickle.load(fp)
 
         # 4. Get the backtest factor which user want to optimize, if user want to maximize the factor, then reverse the result
         res = analysis_df.loc[self.optim_config.report_type].loc[self.optim_config.report_factor]

qlib/data/cache.py

@@ -30,7 +30,6 @@ from ..utils import (
     normalize_cache_fields,
     normalize_cache_instruments,
 )
-from ..utils.pickle_utils import restricted_pickle_load
 
 from ..log import get_module_logger
 from .base import Feature
@@ -226,7 +225,7 @@ class CacheUtils:
             cache_path = Path(cache_path)
             meta_path = cache_path.with_suffix(".meta")
             with meta_path.open("rb") as f:
-                d = restricted_pickle_load(f)
+                d = pickle.load(f)
             with meta_path.open("wb") as f:
                 try:
                     d["meta"]["last_visit"] = str(time.time())
@@ -593,7 +592,7 @@ class DiskExpressionCache(ExpressionCache):
 
         with CacheUtils.writer_lock(self.r, f"{str(C.dpm.get_data_uri())}:expression-{cache_uri}"):
             with meta_path.open("rb") as f:
-                d = restricted_pickle_load(f)
+                d = pickle.load(f)
             instrument = d["info"]["instrument"]
             field = d["info"]["field"]
             freq = d["info"]["freq"]
@@ -960,7 +959,7 @@ class DiskDatasetCache(DatasetCache):
         im = DiskDatasetCache.IndexManager(cp_cache_uri)
         with CacheUtils.writer_lock(self.r, f"{str(C.dpm.get_data_uri())}:dataset-{cache_uri}"):
             with meta_path.open("rb") as f:
-                d = restricted_pickle_load(f)
+                d = pickle.load(f)
             instruments = d["info"]["instruments"]
             fields = d["info"]["fields"]
             freq = d["info"]["freq"]

qlib/data/client.py

@@ -2,15 +2,15 @@
 # Licensed under the MIT License.
 
 
-from __future__ import division, print_function
-
-import json
+from __future__ import division
+from __future__ import print_function
 
 import socketio
 
 import qlib
-
+from ..config import C
 from ..log import get_module_logger
+import pickle
 
 
 class Client:
@@ -96,7 +96,7 @@ class Client:
         self.logger.debug("connected")
         # The pickle is for passing some parameters with special type(such as
         # pd.Timestamp)
-        request_content = {"head": head_info, "body": json.dumps(request_content, default=str)}
+        request_content = {"head": head_info, "body": pickle.dumps(request_content, protocol=C.dump_protocol_version)}
         self.sio.on(request_type + "_response", request_callback)
         self.logger.debug("try sending")
         self.sio.emit(request_type + "_request", request_content)

qlib/data/dataset/loader.py

@@ -2,6 +2,7 @@
 # Licensed under the MIT License.
 
 import abc
+import pickle
 from pathlib import Path
 import warnings
 import pandas as pd
@@ -10,7 +11,6 @@ from typing import Tuple, Union, List, Dict
 
 from qlib.data import D
 from qlib.utils import load_dataset, init_instance_by_config, time_to_slc_point
-from qlib.utils.pickle_utils import restricted_pickle_load
 from qlib.log import get_module_logger
 from qlib.utils.serial import Serializable
 
@@ -283,7 +283,7 @@ class StaticDataLoader(DataLoader, Serializable):
                 self._data = pd.read_parquet(self._config, engine="pyarrow")
             else:
                 with Path(self._config).open("rb") as f:
-                    self._data = restricted_pickle_load(f)
+                    self._data = pickle.load(f)
         elif isinstance(self._config, pd.DataFrame):
             self._data = self._config
 

qlib/data/filter.py

@@ -168,7 +168,7 @@ class SeriesDFilter(BaseDFilter):
         for _ts, _bool in timestamp_series.items():
             # there is likely to be NAN when the filter series don't have the
             # bool value, so we just change the NAN into False
-            if np.isnan(_bool):
+            if _bool == np.nan:
                 _bool = False
             if _lbool is None:
                 _cur_start = _ts

qlib/rl/data/native.py

@@ -2,18 +2,17 @@
 # Licensed under the MIT License.
 from __future__ import annotations
 
-import os
 from pathlib import Path
-from typing import List, cast
+from typing import cast, List
 
 import cachetools
 import pandas as pd
+import pickle
+import os
 
 from qlib.backtest import Exchange, Order
 from qlib.backtest.decision import TradeRange, TradeRangeByTime
 from qlib.constant import EPS_T
-from qlib.utils.pickle_utils import restricted_pickle_load
-
 from .base import BaseIntradayBacktestData, BaseIntradayProcessedData, ProcessedDataProvider
 
 
@@ -163,7 +162,7 @@ class HandlerIntradayProcessedData(BaseIntradayProcessedData):
         path = os.path.join(data_dir, "backtest" if backtest else "feature", f"{stock_id}.pkl")
         start_time, end_time = date.replace(hour=0, minute=0, second=0), date.replace(hour=23, minute=59, second=59)
         with open(path, "rb") as fstream:
-            dataset = restricted_pickle_load(fstream)
+            dataset = pickle.load(fstream)
         data = dataset.handler.fetch(pd.IndexSlice[stock_id, start_time:end_time], level=None)
 
         if index_only:

qlib/utils/mod.py

@@ -11,6 +11,7 @@ import contextlib
 import importlib
 import os
 from pathlib import Path
+import pickle
 import pkgutil
 import re
 import sys
@@ -19,7 +20,6 @@ from typing import Any, Dict, List, Tuple, Union
 from urllib.parse import urlparse
 
 from qlib.typehint import InstConf
-from qlib.utils.pickle_utils import restricted_pickle_load
 
 
 def get_module_by_module_path(module_path: Union[str, ModuleType]):
@@ -168,10 +168,10 @@ def init_instance_by_config(
 
                 pr_path = os.path.join(pr.netloc, path) if bool(pr.path) else pr.netloc
                 with open(os.path.normpath(pr_path), "rb") as f:
-                    return restricted_pickle_load(f)
+                    return pickle.load(f)
         else:
             with config.open("rb") as f:
-                return restricted_pickle_load(f)
+                return pickle.load(f)
 
     klass, cls_kwargs = get_callable_kwargs(config, default_module=default_module)
 

qlib/utils/objm.py

@@ -6,7 +6,6 @@ import tempfile
 from pathlib import Path
 
 from qlib.config import C
-from qlib.utils.pickle_utils import restricted_pickle_load
 
 
 class ObjManager:
@@ -117,7 +116,7 @@ class FileManager(ObjManager):
 
     def load_obj(self, name):
         with (self.path / name).open("rb") as f:
-            return restricted_pickle_load(f)
+            return pickle.load(f)
 
     def exists(self, name):
         return (self.path / name).exists()

qlib/utils/pickle_utils.py

@@ -1,171 +0,0 @@
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-"""
-Secure pickle utilities to prevent arbitrary code execution through deserialization.
-
-This module provides a secure alternative to pickle.load() and pickle.loads()
-that restricts deserialization to a whitelist of safe classes.
-"""
-
-import io
-import pickle
-from typing import Any, BinaryIO, Set, Tuple
-
-# Whitelist of safe classes that are allowed to be unpickled
-# These are common data types used in qlib that should be safe to deserialize
-SAFE_PICKLE_CLASSES: Set[Tuple[str, str]] = {
-    # python builtins
-    ("builtins", "slice"),
-    ("builtins", "range"),
-    ("builtins", "dict"),
-    ("builtins", "list"),
-    ("builtins", "tuple"),
-    ("builtins", "set"),
-    ("builtins", "frozenset"),
-    ("builtins", "bytearray"),
-    ("builtins", "bytes"),
-    ("builtins", "str"),
-    ("builtins", "int"),
-    ("builtins", "float"),
-    ("builtins", "bool"),
-    ("builtins", "complex"),
-    ("builtins", "type"),
-    ("builtins", "property"),
-    # common utility classes
-    ("datetime", "datetime"),
-    ("datetime", "date"),
-    ("datetime", "time"),
-    ("datetime", "timedelta"),
-    ("datetime", "timezone"),
-    ("decimal", "Decimal"),
-    ("collections", "OrderedDict"),
-    ("collections", "defaultdict"),
-    ("collections", "Counter"),
-    ("collections", "namedtuple"),
-    ("enum", "Enum"),
-    ("pathlib", "Path"),
-    ("pathlib", "PosixPath"),
-    ("pathlib", "WindowsPath"),
-    ("qlib.data.dataset.handler", "DataHandler"),
-    ("qlib.data.dataset.handler", "DataHandlerLP"),
-    ("qlib.data.dataset.loader", "StaticDataLoader"),
-}
-
-
-TRUSTED_MODULE_PREFIXES = (
-    "pandas",
-    "numpy",
-)
-
-
-class RestrictedUnpickler(pickle.Unpickler):
-    """Custom unpickler that only allows safe classes to be deserialized.
-
-    This prevents arbitrary code execution through malicious pickle files by
-    restricting deserialization to a whitelist of safe classes.
-
-    Example:
-        >>> with open("data.pkl", "rb") as f:
-        ...     data = RestrictedUnpickler(f).load()
-    """
-
-    def find_class(self, module: str, name: str):
-        """Override find_class to restrict allowed classes.
-
-        Args:
-            module: Module name of the class
-            name: Class name
-
-        Returns:
-            The class object if it's in the whitelist
-
-        Raises:
-            pickle.UnpicklingError: If the class is not in the whitelist
-        """
-        if module.startswith(TRUSTED_MODULE_PREFIXES):
-            return super().find_class(module, name)
-
-        # 2. explicit whitelist (qlib internal)
-        if (module, name) in SAFE_PICKLE_CLASSES:
-            return super().find_class(module, name)
-
-        raise pickle.UnpicklingError(
-            f"Forbidden class: {module}.{name}. "
-            f"Only whitelisted classes are allowed for security reasons. "
-            f"This is to prevent arbitrary code execution through pickle deserialization."
-        )
-
-
-def restricted_pickle_load(file: BinaryIO) -> Any:
-    """Safely load a pickle file with restricted classes.
-
-    This is a drop-in replacement for pickle.load() that prevents
-    arbitrary code execution by only allowing whitelisted classes.
-
-    Args:
-        file: An opened file object in binary mode
-
-    Returns:
-        The unpickled Python object
-
-    Raises:
-        pickle.UnpicklingError: If the pickle contains forbidden classes
-
-    Example:
-        >>> with open("data.pkl", "rb") as f:
-        ...     data = restricted_pickle_load(f)
-    """
-    return RestrictedUnpickler(file).load()
-
-
-def restricted_pickle_loads(data: bytes) -> Any:
-    """Safely load a pickle from bytes with restricted classes.
-
-    This is a drop-in replacement for pickle.loads() that prevents
-    arbitrary code execution by only allowing whitelisted classes.
-
-    Args:
-        data: Bytes object containing pickled data
-
-    Returns:
-        The unpickled Python object
-
-    Raises:
-        pickle.UnpicklingError: If the pickle contains forbidden classes
-
-    Example:
-        >>> data = b'\\x80\\x04\\x95...'
-        >>> obj = restricted_pickle_loads(data)
-    """
-    file_like = io.BytesIO(data)
-    return RestrictedUnpickler(file_like).load()
-
-
-def add_safe_class(module: str, name: str) -> None:
-    """Add a class to the whitelist of safe classes for unpickling.
-
-    Use this function to extend the whitelist if your code needs to deserialize
-    additional classes. However, be very careful when adding classes, as this
-    could potentially introduce security vulnerabilities.
-
-    Args:
-        module: Module name of the class (e.g., 'my_package.my_module')
-        name: Class name (e.g., 'MyClass')
-
-    Warning:
-        Only add classes that you fully control and trust. Adding arbitrary
-        classes from external packages could introduce security risks.
-
-    Example:
-        >>> add_safe_class('my_package.models', 'CustomModel')
-    """
-    SAFE_PICKLE_CLASSES.add((module, name))
-
-
-def get_safe_classes() -> Set[Tuple[str, str]]:
-    """Get a copy of the current whitelist of safe classes.
-
-    Returns:
-        A set of (module, name) tuples representing allowed classes
-    """
-    return SAFE_PICKLE_CLASSES.copy()

qlib/workflow/task/gen.py

@@ -106,13 +106,15 @@ def handler_mod(task: dict, rolling_gen):
         rg (RollingGen): an instance of RollingGen
     """
     try:
-        handler_kwargs = task["dataset"]["kwargs"]["handler"]["kwargs"]
-        handler_end_time = handler_kwargs.get("end_time")
-        test_seg_end_time = task["dataset"]["kwargs"]["segments"][rolling_gen.test_key][1]
-        # if the end of test_segments is None (open-ended segment, i.e., "until now") or end_time < the end of test_segments,
-        # then change end_time to allow load more data
-        if test_seg_end_time is None or rolling_gen.ta.cal_interval(handler_end_time, test_seg_end_time) < 0:
-            handler_kwargs["end_time"] = copy.deepcopy(test_seg_end_time)
+        interval = rolling_gen.ta.cal_interval(
+            task["dataset"]["kwargs"]["handler"]["kwargs"]["end_time"],
+            task["dataset"]["kwargs"]["segments"][rolling_gen.test_key][1],
+        )
+        # if end_time < the end of test_segments, then change end_time to allow load more data
+        if interval < 0:
+            task["dataset"]["kwargs"]["handler"]["kwargs"]["end_time"] = copy.deepcopy(
+                task["dataset"]["kwargs"]["segments"][rolling_gen.test_key][1]
+            )
     except KeyError:
         # Maybe dataset do not have handler, then do nothing.
         pass

qlib/workflow/task/manage.py

@@ -28,7 +28,6 @@ from tqdm.cli import tqdm
 
 from .utils import get_mongodb
 from ...config import C
-from ...utils.pickle_utils import restricted_pickle_loads
 
 
 class TaskManager:
@@ -132,7 +131,7 @@ class TaskManager:
         for prefix in self.ENCODE_FIELDS_PREFIX:
             for k in list(task.keys()):
                 if k.startswith(prefix):
-                    task[k] = restricted_pickle_loads(task[k])
+                    task[k] = pickle.loads(task[k])
         return task
 
     def _dict_to_str(self, flt):

scripts/check_data_health.py

@@ -1,12 +1,12 @@
+from loguru import logger
 import os
 from typing import Optional
 
 import fire
 import pandas as pd
-from loguru import logger
+import qlib
 from tqdm import tqdm
 
-import qlib
 from qlib.data import D
 
 
@@ -36,7 +36,6 @@ class DataHealthChecker:
         self.large_step_threshold_price = large_step_threshold_price
         self.large_step_threshold_volume = large_step_threshold_volume
         self.missing_data_num = missing_data_num
-        self.qlib_dir = os.path.abspath(os.path.expanduser(qlib_dir))
 
         if csv_path:
             assert os.path.isdir(csv_path), f"{csv_path} should be a directory."
@@ -69,43 +68,6 @@ class DataHealthChecker:
             self.data[instrument] = df
         print(df)
 
-    # NOTE:
-    # This check is added due to a known issue in Qlib where feature paths
-    # are constructed using lowercased instrument names. On case-sensitive
-    # file systems (e.g. Linux), uppercase directory names under `features/`
-    # will cause data loading failures.
-    #
-    # See: https://github.com/microsoft/qlib/issues/2053
-    def check_features_dir_lowercase(self) -> Optional[pd.DataFrame]:
-        """
-        Check whether all subdirectories under `<qlib_dir>/features` are named in lowercase.
-
-        This validation helps prevent data loading issues on case-sensitive
-        file systems caused by uppercase instrument directory names.
-        """
-        if not self.qlib_dir:
-            return None
-
-        features_dir = os.path.join(self.qlib_dir, "features")
-        if not os.path.isdir(features_dir):
-            logger.warning(f"`features` directory not found under {self.qlib_dir}")
-            return None
-
-        bad_dirs = []
-        for name in os.listdir(features_dir):
-            full_path = os.path.join(features_dir, name)
-            if os.path.isdir(full_path) and name != name.lower():
-                bad_dirs.append(name)
-
-        if bad_dirs:
-            result_df = pd.DataFrame({"non_lowercase_dir": bad_dirs})
-            return result_df
-        else:
-            logger.info(
-                f"✅ All subdirectories under `{os.path.join(self.qlib_dir, 'features')}` are named in lowercase."
-            )
-            return None
-
     def check_missing_data(self) -> Optional[pd.DataFrame]:
         """Check if any data is missing in the DataFrame."""
         result_dict = {
@@ -215,13 +177,11 @@ class DataHealthChecker:
         check_large_step_changes_result = self.check_large_step_changes()
         check_required_columns_result = self.check_required_columns()
         check_missing_factor_result = self.check_missing_factor()
-        check_features_dir_case_result = self.check_features_dir_lowercase()
         if (
             check_large_step_changes_result is not None
             or check_large_step_changes_result is not None
             or check_required_columns_result is not None
             or check_missing_factor_result is not None
-            or check_features_dir_case_result is not None
         ):
             print(f"\nSummary of data health check ({len(self.data)} files checked):")
             print("-------------------------------------------------")
@@ -237,11 +197,6 @@ class DataHealthChecker:
             if isinstance(check_missing_factor_result, pd.DataFrame):
                 logger.warning(f"The factor column does not exist or is empty")
                 print(check_missing_factor_result)
-            if isinstance(check_features_dir_case_result, pd.DataFrame):
-                logger.warning(
-                    f"Some subdirectories under `{os.path.join(self.qlib_dir, 'features')}` contain uppercase letters, please rename them to lowercase manually."
-                )
-                print(check_features_dir_case_result)
 
 
 if __name__ == "__main__":

scripts/data_collector/us_index/collector.py

@@ -7,14 +7,12 @@ import sys
 from pathlib import Path
 from concurrent.futures import ThreadPoolExecutor
 from typing import List
-from io import StringIO
 
 import fire
 import requests
 import pandas as pd
 from tqdm import tqdm
 from loguru import logger
-from fake_useragent import UserAgent
 
 
 CUR_DIR = Path(__file__).resolve().parent
@@ -53,7 +51,6 @@ class WIKIIndex(IndexBase):
         )
 
         self._target_url = f"{WIKI_URL}/{WIKI_INDEX_NAME_MAP[self.index_name.upper()]}"
-        self._ua = UserAgent()
 
     @property
     @abc.abstractmethod
@@ -115,8 +112,7 @@ class WIKIIndex(IndexBase):
         return _calendar_list
 
     def _request_new_companies(self) -> requests.Response:
-        headers = {"User-Agent": self._ua.random}
-        resp = requests.get(self._target_url, timeout=None, headers=headers)
+        resp = requests.get(self._target_url, timeout=None)
         if resp.status_code != 200:
             raise ValueError(f"request error: {self._target_url}")
 
@@ -132,7 +128,7 @@ class WIKIIndex(IndexBase):
     def get_new_companies(self):
         logger.info(f"get new companies {self.index_name} ......")
         _data = deco_retry(retry=self._request_retry, retry_sleep=self._retry_sleep)(self._request_new_companies)()
-        df_list = pd.read_html(StringIO(_data.text))
+        df_list = pd.read_html(_data.text)
         for _df in df_list:
             _df = self.filter_df(_df)
             if (_df is not None) and (not _df.empty):
@@ -230,11 +226,7 @@ class SP500Index(WIKIIndex):
     def get_changes(self) -> pd.DataFrame:
         logger.info(f"get sp500 history changes......")
         # NOTE: may update the index of the table
-        # Add headers to avoid 403 Forbidden error from Wikipedia
-        headers = {"User-Agent": self._ua.random}
-        response = requests.get(self.WIKISP500_CHANGES_URL, headers=headers, timeout=None)
-        response.raise_for_status()
-        changes_df = pd.read_html(StringIO(response.text))[-1]
+        changes_df = pd.read_html(self.WIKISP500_CHANGES_URL)[-1]
         changes_df = changes_df.iloc[:, [0, 1, 3]]
         changes_df.columns = [self.DATE_FIELD_NAME, self.ADD, self.REMOVE]
         changes_df[self.DATE_FIELD_NAME] = pd.to_datetime(changes_df[self.DATE_FIELD_NAME])

scripts/data_collector/us_index/requirements.txt

@@ -3,4 +3,3 @@ requests
 pandas
 lxml
 loguru
-fake-useragent

scripts/data_collector/utils.py

@@ -3,7 +3,6 @@
 
 import re
 import copy
-import datetime
 import importlib
 import time
 import bisect
@@ -25,7 +24,7 @@ from bs4 import BeautifulSoup
 
 HS_SYMBOLS_URL = "http://app.finance.ifeng.com/hq/list.php?type=stock_a&class={s_type}"
 
-CALENDAR_URL_BASE = "http://push2his.eastmoney.com/api/qt/stock/kline/get?secid={market}.{bench_code}&fields1=f1%2Cf2%2Cf3%2Cf4%2Cf5&fields2=f51%2Cf52%2Cf53%2Cf54%2Cf55%2Cf56%2Cf57%2Cf58&klt=101&fqt=0"
+CALENDAR_URL_BASE = "http://push2his.eastmoney.com/api/qt/stock/kline/get?secid={market}.{bench_code}&fields1=f1%2Cf2%2Cf3%2Cf4%2Cf5&fields2=f51%2Cf52%2Cf53%2Cf54%2Cf55%2Cf56%2Cf57%2Cf58&klt=101&fqt=0&beg=19900101&end=20991231"
 SZSE_CALENDAR_URL = "http://www.szse.cn/api/report/exchange/onepersistenthour/monthList?month={month}&random={random}"
 
 CALENDAR_BENCH_URL_MAP = {
@@ -40,24 +39,6 @@ CALENDAR_BENCH_URL_MAP = {
     "BR_ALL": "^BVSP",
 }
 
-CHROME_UA_POOL = [
-    # Windows
-    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
-    "AppleWebKit/537.36 (KHTML, like Gecko) "
-    "Chrome/120.0.0.0 Safari/537.36",
-    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
-    "AppleWebKit/537.36 (KHTML, like Gecko) "
-    "Chrome/121.0.6167.85 Safari/537.36",
-    # macOS
-    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) "
-    "AppleWebKit/537.36 (KHTML, like Gecko) "
-    "Chrome/121.0.0.0 Safari/537.36",
-    # Linux
-    "Mozilla/5.0 (X11; Linux x86_64) "  # pylint: disable=W1404
-    "AppleWebKit/537.36 (KHTML, like Gecko) "
-    "Chrome/120.0.0.0 Safari/537.36",
-]
-
 _BENCH_CALENDAR_LIST = None
 _ALL_CALENDAR_LIST = None
 _HS_SYMBOLS = None
@@ -71,16 +52,6 @@ _CALENDAR_MAP = {}
 MINIMUM_SYMBOLS_NUM = 3900
 
 
-def build_headers():
-    return {
-        "User-Agent": random.choice(CHROME_UA_POOL),
-        "Accept": "application/json,text/plain,*/*",
-        "Accept-Language": "zh-CN,zh;q=0.9",
-        "Referer": "https://quote.eastmoney.com/",
-        "Connection": "keep-alive",
-    }
-
-
 def get_calendar_list(bench_code="CSI300") -> List[pd.Timestamp]:
     """get SH/SZ history calendar list
 
@@ -96,38 +67,9 @@ def get_calendar_list(bench_code="CSI300") -> List[pd.Timestamp]:
 
     logger.info(f"get calendar list: {bench_code}......")
 
-    def _get_calendar(url, max_retry=3):
-        session = requests.Session()
-        session.headers.update(build_headers())
-        current_datetime = datetime.datetime.now()
-        cur_year = current_datetime.year
-        res_list = []
-        failed_years = []
-        for year in range(2000, cur_year + 1):
-            start = f"{year}0101"
-            end = f"{year}1231"
-            formatted_url = url + f"&beg={start}&end={end}".format(start=start, end=end)
-            for attempt in range(max_retry):
-                try:
-                    resp = session.get(formatted_url, timeout=10)
-                    resp.raise_for_status()
-
-                    data = resp.json().get("data")
-                    if not data or "klines" not in data:
-                        raise ValueError("missing klines")
-
-                    res_list.extend(pd.Timestamp(x.split(",")[0]) for x in data["klines"])
-                    break
-
-                except Exception as e:
-                    time.sleep(random.uniform(0.8, 1.5))
-            else:
-                failed_years.append(year)
-
-        if failed_years:
-            logger.warning(f"Calendar incomplete, failed years: {failed_years}")
-
-        return sorted(set(res_list))
+    def _get_calendar(url):
+        _value_list = requests.get(url, timeout=None).json()["data"]["klines"]
+        return sorted(map(lambda x: pd.Timestamp(x.split(",")[0]), _value_list))
 
     calendar = _CALENDAR_MAP.get(bench_code, None)
     if calendar is None:
@@ -138,14 +80,28 @@ def get_calendar_list(bench_code="CSI300") -> List[pd.Timestamp]:
             calendar = df.index.get_level_values(level="date").map(pd.Timestamp).unique().tolist()
         else:
             if bench_code.upper() == "ALL":
-                import akshare as ak  # pylint: disable=C0415
 
-                trade_date_df = ak.tool_trade_date_hist_sina()
-                trade_date_list = trade_date_df["trade_date"].tolist()
-                trade_date_list = [pd.Timestamp(d) for d in trade_date_list]
-                dates = pd.DatetimeIndex(trade_date_list)
-                filtered_dates = dates[(dates >= "2000-01-04") & (dates <= pd.Timestamp.today().normalize())]
-                calendar = filtered_dates.tolist()
+                @deco_retry
+                def _get_calendar_from_month(month):
+                    _cal = []
+                    try:
+                        resp = requests.get(
+                            SZSE_CALENDAR_URL.format(month=month, random=random.random), timeout=None
+                        ).json()
+                        for _r in resp["data"]:
+                            if int(_r["jybz"]):
+                                _cal.append(pd.Timestamp(_r["jyrq"]))
+                    except Exception as e:
+                        raise ValueError(f"{month}-->{e}") from e
+                    return _cal
+
+                month_range = pd.date_range(start="2000-01", end=pd.Timestamp.now() + pd.Timedelta(days=31), freq="M")
+                calendar = []
+                for _m in month_range:
+                    cal = _get_calendar_from_month(_m.strftime("%Y-%m"))
+                    if cal:
+                        calendar += cal
+                calendar = list(filter(lambda x: x <= pd.Timestamp.now(), calendar))
             else:
                 calendar = _get_calendar(CALENDAR_BENCH_URL_MAP[bench_code])
         _CALENDAR_MAP[bench_code] = calendar
@@ -305,11 +261,7 @@ def get_hs_stock_symbols() -> list:
 
         # Add suffix after the stock code to conform to yahooquery standard, otherwise the data will not be fetched.
         _symbols = [
-            (
-                _symbol + ".ss"
-                if _symbol.startswith("6")
-                else _symbol + ".sz" if _symbol.startswith(("0", "3")) else None
-            )
+            _symbol + ".ss" if _symbol.startswith("6") else _symbol + ".sz" if _symbol.startswith(("0", "3")) else None
             for _symbol in _symbols
         ]
         _symbols = [_symbol for _symbol in _symbols if _symbol is not None]
@@ -420,14 +372,7 @@ def get_us_stock_symbols(qlib_data_path: [str, Path] = None) -> list:
             s_ = s_.strip("*")
             return s_
 
-        _US_SYMBOLS = sorted(
-            set(
-                map(
-                    _format,
-                    filter(lambda x: len(x) < 8 and not x.endswith("WS"), _all_symbols),
-                )
-            )
-        )
+        _US_SYMBOLS = sorted(set(map(_format, filter(lambda x: len(x) < 8 and not x.endswith("WS"), _all_symbols))))
 
     return _US_SYMBOLS
 
@@ -541,10 +486,7 @@ def get_en_fund_symbols(qlib_data_path: [str, Path] = None) -> list:
             raise ValueError("request error")
         try:
             _symbols = []
-            for sub_data in re.findall(
-                r"[\[](.*?)[\]]",
-                resp.content.decode().split("= [")[-1].replace("];", ""),
-            ):
+            for sub_data in re.findall(r"[\[](.*?)[\]]", resp.content.decode().split("= [")[-1].replace("];", "")):
                 data = sub_data.replace('"', "").replace("'", "")
                 # TODO: do we need other information, like fund_name from ['000001', 'HXCZHH', '华夏成长混合', '混合型', 'HUAXIACHENGZHANGHUNHE']
                 _symbols.append(data.split(",")[0])
@@ -725,11 +667,7 @@ def get_instruments(
     """
     _cur_module = importlib.import_module("data_collector.{}.collector".format(market_index))
     obj = getattr(_cur_module, f"{index_name.upper()}Index")(
-        qlib_dir=qlib_dir,
-        index_name=index_name,
-        freq=freq,
-        request_retry=request_retry,
-        retry_sleep=retry_sleep,
+        qlib_dir=qlib_dir, index_name=index_name, freq=freq, request_retry=request_retry, retry_sleep=retry_sleep
     )
     getattr(obj, method)()
 
@@ -737,10 +675,7 @@ def get_instruments(
 def _get_all_1d_data(_date_field_name: str, _symbol_field_name: str, _1d_data_all: pd.DataFrame):
     df = copy.deepcopy(_1d_data_all)
     df.reset_index(inplace=True)
-    df.rename(
-        columns={"datetime": _date_field_name, "instrument": _symbol_field_name},
-        inplace=True,
-    )
+    df.rename(columns={"datetime": _date_field_name, "instrument": _symbol_field_name}, inplace=True)
     df.columns = list(map(lambda x: x[1:] if x.startswith("$") else x, df.columns))
     return df
 

scripts/data_collector/yahoo/requirements.txt

@@ -9,5 +9,4 @@ yahooquery
 joblib
 beautifulsoup4
 bs4
-soupsieve
-akshare
+soupsieve

tests/data_mid_layer_tests/test_handler.py

@@ -1,10 +1,10 @@
 import os
+import pickle
+import shutil
 import unittest
-
+from qlib.tests import TestAutoData
 from qlib.data import D
 from qlib.data.dataset.handler import DataHandlerLP
-from qlib.tests import TestAutoData
-from qlib.utils.pickle_utils import restricted_pickle_load
 
 
 class HandlerTests(TestAutoData):
@@ -23,7 +23,7 @@ class HandlerTests(TestAutoData):
         dh.to_pickle(fname, dump_all=True)
 
         with open(fname, "rb") as f:
-            dh_d = restricted_pickle_load(f)
+            dh_d = pickle.load(f)
 
         self.assertTrue(dh_d._data.equals(df))
         self.assertTrue(dh_d._infer is dh_d._data)