diff --git a/api/python/yr/apis.py b/api/python/yr/apis.py
index 396b9d66f70c0160eadfdc74a7a6d42a788d3d0c..65433812b363afba1fd85549a20e989d6ce479cd 100644
--- a/api/python/yr/apis.py
+++ b/api/python/yr/apis.py
@@ -236,14 +236,9 @@ def put(obj: object, create_param: CreateParam = CreateParam()) -> ObjectRef:
     Examples:
         >>> import yr
         >>> yr.init()
-        >>> # The worker startup parameters need to be configured with shared_disk_directory and shared_disk_size_mb;
-        >>> # otherwise, this example will result in an error
         >>> param = yr.CreateParam()
         >>> param.cache_type = yr.CacheType.DISK
         >>> bs = bytes(0)
-        >>> obj_ref1 = yr.put(bs, param)
-        >>> print(yr.get(obj_ref1))
-        >>> # ValueError: value is None or has zero length
         >>> mem = memoryview(bytes(100))
         >>> obj_ref2 = yr.put(mem)
         >>> print(yr.get(obj_ref2))
@@ -254,7 +249,6 @@ def put(obj: object, create_param: CreateParam = CreateParam()) -> ObjectRef:
         >>> # The final print output is a memoryview pointer.
         >>> obj_ref4 = yr.put(100)
         >>> print(yr.get(obj_ref4))
-        >>> 100
     """
     if (isinstance(obj, (bytes, bytearray, memoryview)) and len(obj) == 0):
         raise ValueError("value is None or has zero length")
@@ -1297,7 +1291,7 @@ class cpp_instance_class:
             class_name (str): cpp class name.
             factory_name (str): Name of the static factory function of the cpp class.
             function_urn (str): Function URN, Defaults to
-                sn:cn:yrk:12345678901234561234567890123456:function:0-defaultservice-py:$latest.
+                sn:cn:yrk:12345678901234561234567890123456:function:0-defaultservice-cpp:$latest.
 
         Examples:
             .. code-block:: cpp
@@ -1331,8 +1325,11 @@ class cpp_instance_class:
 
                 >>> import yr
                 >>> yr.init()
-                >>> cpp_function_urn = "sn:cn:yrk:12345678901234561234567890123456:function:0-yr-mycpp:$latest"
-                >>> counter_class = yr.cpp_instance_class("Counter", "Counter::FactoryCreate",cpp_function_urn)
+                >>> cpp_function_urn = (
+                ...     "sn:cn:yrk:12345678901234561234567890123456:"
+                ...     "function:0-yr-defaultservice-cpp:$latest"
+                ... )
+                >>> counter_class = yr.cpp_instance_class("Counter", "Counter::FactoryCreate", cpp_function_urn)
                 >>> opt = yr.InvokeOptions(cpu=1000, memory=1024)
                 >>> ins = counter_class.options(opt).invoke(11)
                 >>> result = ins.Add.invoke(9)
@@ -1420,11 +1417,13 @@ def cpp_function(function_name: str, function_urn: str) -> FunctionProxy:
 
             >>> import yr
             >>> yr.init()
-            >>> cpp_function_urn = "sn:cn:yrk:12345678901234561234567890123456:function:0-yr-mycpp:$latest"
+            >>> cpp_function_urn = (
+            ...     "sn:cn:yrk:12345678901234561234567890123456:"
+            ...     "function:0-yr-defaultservice-cpp:$latest"
+            ... )
             >>> square_func = yr.cpp_function("Square", cpp_function_urn)
             >>> result = square_func.invoke(5)
             >>> print(yr.get(result))
-            >>>
             >>> yr.finalize()
 
     """
@@ -1470,7 +1469,10 @@ def java_function(class_name: str, function_name: str, function_urn: str) -> Fun
 
             >>> import yr
             >>> yr.init()
-            >>> java_function_urn = "sn:cn:yrk:12345678901234561234567890123456:function:0-yr-myjava:$latest"
+            >>> java_function_urn = (
+            ...     "sn:cn:yrk:12345678901234561234567890123456:"
+            ...     "function:0-yr-defaultservice-java:$latest"
+            ... )
             >>> java_add = yr.java_function("com.yuanrong.demo.PlusOne", "PlusOne", java_function_urn)
             >>> result = java_add.invoke(1)
             >>> print(yr.get(result))
@@ -1523,7 +1525,10 @@ def java_instance_class(class_name: str, function_urn: str) -> InstanceCreator:
 
             >>> import yr
             >>> yr.init()
-            >>> java_function_urn = "sn:cn:yrk:12345678901234561234567890123456:function:0-yr-myjava:$latest"
+            >>> java_function_urn = (
+            ...     "sn:cn:yrk:12345678901234561234567890123456:"
+            ...     "function:0-yr-defaultservice-java:$latest"
+            ... )
             >>>
             >>> java_instance = yr.java_instance_class("com.yuanrong.demo.Counter", java_function_urn).invoke(1)
             >>> res = java_instance.Add.invoke(5)
diff --git a/api/python/yr/config.py b/api/python/yr/config.py
index 6c2dfddced3b73b0cac3e2867fcfdfebacff28e7..356333a58281961a68c8ba1ff20bf054978166b1 100644
--- a/api/python/yr/config.py
+++ b/api/python/yr/config.py
@@ -356,7 +356,7 @@ class InvokeOptions:
     >>> import yr
     >>> yr.init()
     >>> opt = yr.InvokeOptions()
-    >>> opt.custom_extensions["YR_Metrics"] = "{\"endpoint\":\"127.0.0.1\", \"project_id\":\"my_project_id\"}"
+    >>> opt.custom_extensions["YR_Metrics"] = "{\'endpoint\':\'127.0.0.1\', \'project_id\':\'my_project_id\'}"
 
     In Prometheus, select `metrics name` as `yr_app_instance_billing_invoke_latency`, and you can find the custom tag 
     information in the collected invoke information:
diff --git a/docs/multi_language_function_programming_interface/api/distributed_programming/zh_cn/Python/yr.DoubleCounter.set.rst b/docs/multi_language_function_programming_interface/api/distributed_programming/zh_cn/Python/yr.DoubleCounter.set.rst
index a28af2639d12534efdee104d7457e4b893ad5e08..acff9e8bb8113c456a550d87b6e5b70476da2293 100644
--- a/docs/multi_language_function_programming_interface/api/distributed_programming/zh_cn/Python/yr.DoubleCounter.set.rst
+++ b/docs/multi_language_function_programming_interface/api/distributed_programming/zh_cn/Python/yr.DoubleCounter.set.rst
@@ -14,7 +14,7 @@ yr.DoubleCounter.set
 
     样例：
         >>> import yr
-            >>> config = yr.Config(enable_metrics=True)
+        >>> config = yr.Config(enable_metrics=True)
         >>> yr.init(config)
         >>>
         >>> @yr.instance
diff --git a/docs/multi_language_function_programming_interface/api/distributed_programming/zh_cn/Python/yr.kv_m_write_tx.rst b/docs/multi_language_function_programming_interface/api/distributed_programming/zh_cn/Python/yr.kv_m_write_tx.rst
index a77057f4f4752afa8b0f5f08c8f6898e5a52a7d1..69fb80abcc1d8afbcfc05ba1600c86f6749920d6 100644
--- a/docs/multi_language_function_programming_interface/api/distributed_programming/zh_cn/Python/yr.kv_m_write_tx.rst
+++ b/docs/multi_language_function_programming_interface/api/distributed_programming/zh_cn/Python/yr.kv_m_write_tx.rst
@@ -19,8 +19,6 @@ yr.kv_m_write_tx
     样例：
         >>> import yr
         >>> yr.init()
-        >>> # worker启动参数需要配置为 shared_disk_directory 和 shared_disk_size_mb
-        >>> # 否则，此示例将导致错误
         >>> mset_param = yr.MSetParam()
         >>> mset_param.existence = yr.ExistenceOpt.NX
         >>> mset_param.write_mode = yr.WriteMode.NONE_L2_CACHE_EVICT
diff --git a/docs/multi_language_function_programming_interface/api/distributed_programming/zh_cn/Python/yr.put.rst b/docs/multi_language_function_programming_interface/api/distributed_programming/zh_cn/Python/yr.put.rst
index 5f8bee72c70946ce87ce0f36fba83e1b9615eca9..ccbbf4f1f66b6fb7ba508cf57e53ce9ea8a39a53 100644
--- a/docs/multi_language_function_programming_interface/api/distributed_programming/zh_cn/Python/yr.put.rst
+++ b/docs/multi_language_function_programming_interface/api/distributed_programming/zh_cn/Python/yr.put.rst
@@ -28,14 +28,9 @@ yr.put
     样例：
         >>> import yr
         >>> yr.init()
-        >>> # worker启动参数需要配置为shared_disk_directory和shared_disk_size_mb
-        >>> # 否则，此示例将导致错误
         >>> param = yr.CreateParam()
         >>> param.cache_type = yr.CacheType.DISK
         >>> bs = bytes(0)
-        >>> obj_ref1 = yr.put(bs, param)
-        >>> print(yr.get(obj_ref1))
-        >>> # ValueError: value is None or has zero length
         >>> mem = memoryview(bytes(100))
         >>> obj_ref2 = yr.put(mem)
         >>> print(yr.get(obj_ref2))
@@ -46,6 +41,5 @@ yr.put
         >>> # 最后输出一个 memoryview 指针
         >>> obj_ref4 = yr.put(100)
         >>> print(yr.get(obj_ref4))
-        >>> 100
 
 .. _ObjectRef: ../../Python/generated/yr.object_ref.ObjectRef.html#yr.object_ref.ObjectRef