diff --git a/python/paddle/fluid/framework.py b/python/paddle/fluid/framework.py
index 55ad7305e9d279c95503766251817af37c36d8f3..6ec5d5ffed79c14ebd0c629af1195cea098422b1 100644
--- a/python/paddle/fluid/framework.py
+++ b/python/paddle/fluid/framework.py
@@ -7524,6 +7524,18 @@ def _dygraph_guard(tracer):
         global_var._dygraph_tracer_ = tmp_tracer
 
 
+@signature_safe_contextmanager
+def _static_guard():
+    tmp_tracer = global_var._dygraph_tracer_
+    global_var._dygraph_tracer_ = None
+    try:
+        yield
+    finally:
+        if tmp_tracer is not None:
+            core._switch_tracer(tmp_tracer)
+        global_var._dygraph_tracer_ = tmp_tracer
+
+
 @signature_safe_contextmanager
 def _dygraph_place_guard(place):
     global _global_expected_place_
diff --git a/python/paddle/fluid/tests/unittests/eager_op_test.py b/python/paddle/fluid/tests/unittests/eager_op_test.py
index 46c612cd07584db217f2bde51b3c184f99e2fdbe..81e709556974d8a7f1dbc26cf68e219c1caf0394 100644
--- a/python/paddle/fluid/tests/unittests/eager_op_test.py
+++ b/python/paddle/fluid/tests/unittests/eager_op_test.py
@@ -920,7 +920,7 @@ class OpTest(unittest.TestCase):
         enable_inplace=None,
         for_inplace_test=None,
     ):
-        with paddle.static.program_guard(paddle.static.Program()):
+        with paddle.fluid.framework._static_guard():
             program = Program()
             block = program.global_block()
             op = self._append_ops(block)
@@ -1249,7 +1249,7 @@ class OpTest(unittest.TestCase):
         Returns:
             res (tuple(outs, fetch_list, feed_map, program, op_desc)): The results of given grad_op_desc.
         """
-        with paddle.static.program_guard(paddle.static.Program()):
+        with paddle.fluid.framework._static_guard():
             (
                 fwd_outs,
                 fwd_fetch_list,
@@ -2360,7 +2360,7 @@ class OpTest(unittest.TestCase):
         user_defined_grad_outputs=None,
         parallel=False,
     ):
-        with paddle.static.program_guard(paddle.static.Program()):
+        with paddle.fluid.framework._static_guard():
             prog = Program()
             scope = core.Scope()
             block = prog.global_block()
diff --git a/python/paddle/fluid/tests/unittests/op_test.py b/python/paddle/fluid/tests/unittests/op_test.py
index c31d88ddeda2f6efc40126989e550b1487cd2827..60f175203c94d301e76098ec3f5aae6329eaf39a 100644
--- a/python/paddle/fluid/tests/unittests/op_test.py
+++ b/python/paddle/fluid/tests/unittests/op_test.py
@@ -1018,7 +1018,7 @@ class OpTest(unittest.TestCase):
         enable_inplace=None,
         for_inplace_test=None,
     ):
-        with paddle.static.program_guard(paddle.static.Program()):
+        with paddle.fluid.framework._static_guard():
             program = Program()
             block = program.global_block()
             op = self._append_ops(block)
@@ -1347,7 +1347,7 @@ class OpTest(unittest.TestCase):
         Returns:
             res (tuple(outs, fetch_list, feed_map, program, op_desc)): The results of given grad_op_desc.
         """
-        with paddle.static.program_guard(paddle.static.Program()):
+        with paddle.fluid.framework._static_guard():
             (
                 fwd_outs,
                 fwd_fetch_list,
@@ -2666,7 +2666,7 @@ class OpTest(unittest.TestCase):
         user_defined_grad_outputs=None,
         parallel=False,
     ):
-        with paddle.static.program_guard(paddle.static.Program()):
+        with paddle.fluid.framework._static_guard():
             prog = Program()
             scope = core.Scope()
             block = prog.global_block()
diff --git a/python/paddle/fluid/tests/unittests/prim_op_test.py b/python/paddle/fluid/tests/unittests/prim_op_test.py
index 73986391dc6b5c35cd626279f53d6b476e0b0a53..c3b1d44bb2c0a0ff0aeccbd3e166584c3c25ad2c 100644
--- a/python/paddle/fluid/tests/unittests/prim_op_test.py
+++ b/python/paddle/fluid/tests/unittests/prim_op_test.py
@@ -28,7 +28,7 @@ from paddle.jit.dy2static.utils import parse_arg_and_kwargs
 def flatten(nest_list):
     out = []
     for i in nest_list:
-        if isinstance(i, list or tuple):
+        if isinstance(i, (list, tuple)):
             tmp_list = flatten(i)
             for j in tmp_list:
                 out.append(j)
@@ -40,7 +40,7 @@ def flatten(nest_list):
 def _as_list(x):
     if x is None:
         return []
-    return list(x) if isinstance(x, list or tuple) else [x]
+    return list(x) if isinstance(x, (list, tuple)) else [x]
 
 
 def convert_uint16_to_float(in_list):