diff --git a/case/test_dde_1271215.py b/case/test_dde_1271215.py
index 19d4a7f59e668a878706fb485490bc85a693891f..fe6b8ce6789a14d6eb878ea1eee65ee15fe5ca1e 100644
--- a/case/test_dde_1271215.py
+++ b/case/test_dde_1271215.py
@@ -1,4 +1,4 @@
-import os
+import pytest
 from apps.dde_autotest_euler.case.base_case import BaseCase
 from apps.dde_autotest_euler.method.dde_method import DdeMethod
 from src import sleep
diff --git a/case/test_dde_1271217.py b/case/test_dde_1271217.py
index 6dfbc98660d08879a4e587ed9e60e1394b419c8c..c6de5cabdee76f40aba293e85dc745eddf77d362 100644
--- a/case/test_dde_1271217.py
+++ b/case/test_dde_1271217.py
@@ -1,4 +1,4 @@
-import os
+import pytest
 from apps.dde_autotest_euler.case.base_case import BaseCase
 from apps.dde_autotest_euler.method.dde_method import DdeMethod
 from src import sleep