diff --git a/docs/start/integration.rst b/docs/start/integration.rst
index a9eecc4ea..3ec2d2ea6 100644
--- a/docs/start/integration.rst
+++ b/docs/start/integration.rst
@@ -71,7 +71,7 @@ The Custom models need to inherit `qlib.model.base.Model <../reference/api.html#
                 )
 
 - Override the `predict` method
-    - The parameters must include the parameter `dataset`, which will be userd to get the test dataset.
+    - The parameters must include the parameter `dataset`, which will be used to get the test dataset.
     - Return the `prediction score`.
     - Please refer to `Model API <../reference/api.html#module-qlib.model.base>`_ for the parameter types of the fit method.
     - Code Example: In the following example, users need to use `LightGBM` to predict the label(such as `preds`) of test data `x_test` and return it.
diff --git a/scripts/data_collector/utils.py b/scripts/data_collector/utils.py
index f25b1ec7a..3c5081201 100644
--- a/scripts/data_collector/utils.py
+++ b/scripts/data_collector/utils.py
@@ -82,7 +82,7 @@ def get_calendar_list(bench_code="CSI300") -> List[pd.Timestamp]:
             if bench_code.upper() == "ALL":
 
                 @deco_retry
-                def _get_calendar(month):
+                def _get_calendar_from_month(month):
                     _cal = []
                     try:
                         resp = requests.get(
@@ -98,7 +98,7 @@ def get_calendar_list(bench_code="CSI300") -> List[pd.Timestamp]:
                 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(_m.strftime("%Y-%m"))
+                    cal = _get_calendar_from_month(_m.strftime("%Y-%m"))
                     if cal:
                         calendar += cal
                 calendar = list(filter(lambda x: x <= pd.Timestamp.now(), calendar))
diff --git a/scripts/data_collector/yahoo/collector.py b/scripts/data_collector/yahoo/collector.py
index a1b4d64f6..82660f111 100644
--- a/scripts/data_collector/yahoo/collector.py
+++ b/scripts/data_collector/yahoo/collector.py
@@ -613,10 +613,6 @@ class YahooNormalize1min(YahooNormalize, ABC):
     def symbol_to_yahoo(self, symbol):
         raise NotImplementedError("rewrite symbol_to_yahoo")
 
-    @abc.abstractmethod
-    def _get_1d_calendar_list(self) -> Iterable[pd.Timestamp]:
-        raise NotImplementedError("rewrite _get_1d_calendar_list")
-
 
 class YahooNormalizeUS:
     def _get_calendar_list(self) -> Iterable[pd.Timestamp]: