diff --git a/qlib/workflow/cli.py b/qlib/workflow/cli.py
index f660a8098..7cce25809 100644
--- a/qlib/workflow/cli.py
+++ b/qlib/workflow/cli.py
@@ -14,7 +14,7 @@ from qlib.workflow import R
 from qlib.workflow.record_temp import SignalRecord
 
 # worflow handler function
-def workflow(config_path):
+def workflow(config_path, experiment_name="workflow"):
     with open(config_path) as fp:
         config = yaml.load(fp, Loader=yaml.Loader)
 
@@ -26,12 +26,13 @@ def workflow(config_path):
     dataset = init_instance_by_config(config.get("task")["dataset"])
 
     # start exp
-    with R.start(experiment_name="workflow"):
-        R.log_paramters(**flatten_dict(task))
+    with R.start(experiment_name=experiment_name):
+        # train model
+        R.log_params(**flatten_dict(config.get("task")))
         model.fit(dataset)
         recorder = R.get_recorder()
 
-        # generate records
+        # generate records: prediction, backtest, and analysis
         for record in config.get("task")["record"]:
             if record["class"] == SignalRecord.__name__:
                 srconf = {"model": model, "dataset": dataset, "recorder": recorder}
diff --git a/scripts/check_dump_bin.py b/scripts/check_dump_bin.py
index 7c2ceccda..7c2e837af 100644
--- a/scripts/check_dump_bin.py
+++ b/scripts/check_dump_bin.py
@@ -108,9 +108,7 @@ class CheckBin:
             return self.COMPARE_ERROR
 
     def check(self):
-        """Check whether the bin file after ``dump_bin.py`` is executed is consistent with the original csv file data
-
-        """
+        """Check whether the bin file after ``dump_bin.py`` is executed is consistent with the original csv file data"""
         logger.info("start check......")
 
         error_list = []
diff --git a/scripts/get_data.py b/scripts/get_data.py
index 661e31c5f..4c0595238 100644
--- a/scripts/get_data.py
+++ b/scripts/get_data.py
@@ -55,7 +55,9 @@ class GetData:
             for _file in tqdm(zp.namelist()):
                 zp.extract(_file, str(target_dir.resolve()))
 
-    def qlib_data(self, name="qlib_data", target_dir="~/.qlib/qlib_data/cn_data", version="latest", interval="1d", region="cn"):
+    def qlib_data(
+        self, name="qlib_data", target_dir="~/.qlib/qlib_data/cn_data", version="latest", interval="1d", region="cn"
+    ):
         """download cn qlib data from remote
 
         Parameters
diff --git a/setup.py b/setup.py
index 8ad124750..d08e378cb 100644
--- a/setup.py
+++ b/setup.py
@@ -57,6 +57,7 @@ REQUIRED = [
     "tornado",
     "joblib>=0.17.0",
     "fire>=0.3.1",
+    "ruamel.yaml>=0.16.12",
 ]
 
 # Numpy include
diff --git a/tests/test_all_pipeline.py b/tests/test_all_pipeline.py
index 2930489a2..04c399342 100644
--- a/tests/test_all_pipeline.py
+++ b/tests/test_all_pipeline.py
@@ -149,7 +149,9 @@ class TestAllFlow(unittest.TestCase):
             sys.path.append(str(Path(__file__).resolve().parent.parent.joinpath("scripts")))
             from get_data import GetData
 
-            GetData().qlib_data(name="qlib_data_simple", region="cn", version="latest", interval="1d", target_dir=provider_uri)
+            GetData().qlib_data(
+                name="qlib_data_simple", region="cn", version="latest", interval="1d", target_dir=provider_uri
+            )
         qlib.init(provider_uri=provider_uri, region=REG_CN)
 
     def test_0_train(self):
diff --git a/tests/test_dump_data.py b/tests/test_dump_data.py
index 01e6a3758..dfa7f8556 100644
--- a/tests/test_dump_data.py
+++ b/tests/test_dump_data.py
@@ -75,7 +75,9 @@ class TestDumpData(unittest.TestCase):
 
     def test_4_dump_features_simple(self):
         stock = self.STOCK_NAMES[0]
-        dump_data = DumpDataFix(csv_path=SOURCE_DIR.joinpath(f"{stock.lower()}.csv"), qlib_dir=QLIB_DIR, include_fields=self.FIELDS)
+        dump_data = DumpDataFix(
+            csv_path=SOURCE_DIR.joinpath(f"{stock.lower()}.csv"), qlib_dir=QLIB_DIR, include_fields=self.FIELDS
+        )
         dump_data.dump()
 
         df = D.features([stock], self.QLIB_FIELDS)