diff --git a/tests/python_client/testcases/test_connection_20.py b/tests/python_client/testcases/test_connection.py
similarity index 99%
rename from tests/python_client/testcases/test_connection_20.py
rename to tests/python_client/testcases/test_connection.py
index b31af496cd..07997a9541 100644
--- a/tests/python_client/testcases/test_connection_20.py
+++ b/tests/python_client/testcases/test_connection.py
@@ -750,9 +750,9 @@ class TestConnectionOperation(TestcaseBase):
 class TestConnect:
 
     def local_ip(self, args):
-        '''
+        """
         check if ip is localhost or not
-        '''
+        """
         if not args["ip"] or args["ip"] == 'localhost' or args["ip"] == "127.0.0.1":
             return True
         else:
@@ -760,31 +760,31 @@ class TestConnect:
 
     @pytest.mark.tags(ct.CaseLabel.L2)
     def test_close_repeatedly(self, dis_connect, args):
-        '''
+        """
         target: test disconnect repeatedly
         method: disconnect a connected client, disconnect again
         expected: raise an error after disconnected
-        '''
+        """
         with pytest.raises(Exception) as e:
             dis_connect.close()
 
     @pytest.mark.tags(ct.CaseLabel.L2)
     def test_connect_uri(self, args):
-        '''
+        """
         target: test connect with correct uri
         method: uri format and value are both correct
         expected: connected is True
-        '''
+        """
         uri_value = "tcp://%s:%s" % (args["ip"], args["port"])
         milvus = get_milvus(args["ip"], args["port"], uri=uri_value, handler=args["handler"])
 
     @pytest.mark.tags(ct.CaseLabel.L2)
     def test_connect_uri_null(self, args):
-        '''
+        """
         target: test connect with null uri
         method: uri set null
         expected: connected is True
-        '''
+        """
         uri_value = ""
         if self.local_ip(args):
             milvus = get_milvus(None, None, uri=uri_value, handler=args["handler"])
@@ -794,11 +794,11 @@ class TestConnect:
 
     @pytest.mark.tags(ct.CaseLabel.L2)
     def test_connect_with_multiprocess(self, args):
-        '''
+        """
         target: test uri connect with multiprocess
         method: set correct uri, test with multiprocessing connecting
         expected: all connection is connected
-        '''
+        """
 
         def connect():
             milvus = get_milvus(args["ip"], args["port"], handler=args["handler"])
@@ -812,11 +812,11 @@ class TestConnect:
 
     @pytest.mark.tags(ct.CaseLabel.L2)
     def test_connect_repeatedly(self, args):
-        '''
+        """
         target: test connect repeatedly
         method: connect again
         expected: status.code is 0, and status.message shows have connected already
-        '''
+        """
         uri_value = "tcp://%s:%s" % (args["ip"], args["port"])
         milvus = Milvus(uri=uri_value, handler=args["handler"])
         milvus = Milvus(uri=uri_value, handler=args["handler"])
@@ -857,11 +857,11 @@ class TestConnectPortInvalid(object):
     @pytest.mark.tags(ct.CaseLabel.L2)
     @pytest.mark.timeout(CONNECT_TIMEOUT)
     def test_connect_with_invalid_port(self, args, get_invalid_port):
-        '''
+        """
         target: test ip:port connect with invalid port value
         method: set port in gen_invalid_ports
         expected: connected is False
-        '''
+        """
         port = get_invalid_port
         with pytest.raises(Exception) as e:
             milvus = get_milvus(args["ip"], port, args["handler"])
@@ -882,11 +882,11 @@ class TestConnectURIInvalid(object):
     @pytest.mark.tags(ct.CaseLabel.L2)
     @pytest.mark.timeout(CONNECT_TIMEOUT)
     def test_connect_with_invalid_uri(self, get_invalid_uri, args):
-        '''
+        """
         target: test uri connect with invalid uri value
         method: set port in gen_invalid_uris
         expected: connected is False
-        '''
+        """
         uri_value = get_invalid_uri
         with pytest.raises(Exception) as e:
             milvus = get_milvus(uri=uri_value, handler=args["handler"])
diff --git a/tests/python_client/testcases/test_e2e_20.py b/tests/python_client/testcases/test_e2e.py
similarity index 100%
rename from tests/python_client/testcases/test_e2e_20.py
rename to tests/python_client/testcases/test_e2e.py