diff --git a/tests/suite/test_transport_server_external_name.py b/tests/suite/test_transport_server_external_name.py
index f0f77a526b..a676edf9a7 100644
--- a/tests/suite/test_transport_server_external_name.py
+++ b/tests/suite/test_transport_server_external_name.py
@@ -120,7 +120,7 @@ def test_template_config(
                 ts_externalname_setup.ic_pod_name,
                 ingress_controller_prerequisites.namespace,
             )
-            retry = +1
+            retry = retry + 1
 
         assert resolver_count == 2  # one for http and other for stream context
         assert (
diff --git a/tests/suite/test_transport_server_service_insight.py b/tests/suite/test_transport_server_service_insight.py
index 9bda5959f3..96cde1cdc1 100644
--- a/tests/suite/test_transport_server_service_insight.py
+++ b/tests/suite/test_transport_server_service_insight.py
@@ -140,7 +140,7 @@ def test_ts_service_insight(
         while (resp.json() != {"Total": 1, "Up": 1, "Unhealthy": 0}) and retry < 5:
             resp = requests.get(service_insight_endpoint)
             wait_before_test()
-            retry = +1
+            retry = retry + 1
         assert resp.json() == {"Total": 1, "Up": 1, "Unhealthy": 0}
 
 
@@ -199,5 +199,5 @@ def test_ts_service_insight_https(
         while (resp.json() != {"Total": 1, "Up": 1, "Unhealthy": 0}) and retry < 5:
             resp = requests.get(service_insight_endpoint, verify=False)
             wait_before_test()
-            retry = +1
+            retry = retry + 1
         assert resp.json() == {"Total": 1, "Up": 1, "Unhealthy": 0}
diff --git a/tests/suite/test_virtual_server_backup_service.py b/tests/suite/test_virtual_server_backup_service.py
index 5a4ae02587..776fd62d9c 100644
--- a/tests/suite/test_virtual_server_backup_service.py
+++ b/tests/suite/test_virtual_server_backup_service.py
@@ -42,7 +42,7 @@ def get_result_in_conf_with_retry(
             ic_pod_name,
             ic_pod_namespace,
         )
-        retry = +1
+        retry = retry + 1
     return result_conf
 
 
diff --git a/tests/suite/test_virtual_server_error_pages.py b/tests/suite/test_virtual_server_error_pages.py
index 6072ae573d..046130a53c 100644
--- a/tests/suite/test_virtual_server_error_pages.py
+++ b/tests/suite/test_virtual_server_error_pages.py
@@ -43,7 +43,7 @@ def test_redirect_strategy(self, kube_apis, crd_ingress_controller, virtual_serv
                 print(f"redirect to uri: {resp.next.url}")
             except AttributeError as e:
                 print(f"Exception occurred: {e}")
-                retry = +1
+                retry = retry + 1
                 continue
             break
         assert f"http://{virtual_server_setup.vs_host}/error.html" in resp.next.url
diff --git a/tests/suite/test_virtual_server_service_insight.py b/tests/suite/test_virtual_server_service_insight.py
index 81cea90823..0f2149e012 100644
--- a/tests/suite/test_virtual_server_service_insight.py
+++ b/tests/suite/test_virtual_server_service_insight.py
@@ -41,7 +41,7 @@ def test_responses_svc_insight_http(
         while (resp.json() != {"Total": 3, "Up": 3, "Unhealthy": 0}) and retry < 5:
             resp = requests.get(req_url)
             wait_before_test()
-            retry = +1
+            retry = retry + 1
 
         assert resp.status_code == 200, f"Expected 200 code for /probe/{host} but got {resp.status_code}"
         assert resp.json() == {"Total": 3, "Up": 3, "Unhealthy": 0}
@@ -99,7 +99,7 @@ def test_responses_svc_insight_https(
         while (resp.json() != {"Total": 3, "Up": 3, "Unhealthy": 0}) and retry < 5:
             resp = requests.get(req_url, verify=False)
             wait_before_test()
-            retry = +1
+            retry = retry + 1
         assert resp.status_code == 200, f"Expected 200 code for /probe/{host} but got {resp.status_code}"
         assert resp.json() == {"Total": 3, "Up": 3, "Unhealthy": 0}
 
@@ -129,6 +129,6 @@ def test_responses_svc_insight_update_pods(
         while (resp.json() != {"Total": 6, "Up": 6, "Unhealthy": 0}) and retry < 5:
             resp = requests.get(req_url, verify=False)
             wait_before_test()
-            retry = +1
+            retry = retry + 1
         assert resp.status_code == 200, f"Expected 200 code for /probe/{host} but got {resp.status_code}"
         assert resp.json() == {"Total": 6, "Up": 6, "Unhealthy": 0}
diff --git a/tests/suite/test_watch_namespace.py b/tests/suite/test_watch_namespace.py
index cd28215199..743bd799a5 100644
--- a/tests/suite/test_watch_namespace.py
+++ b/tests/suite/test_watch_namespace.py
@@ -114,7 +114,7 @@ def test_response_codes(self, ingress_controller, backend_setup, expected_respon
             retry = 0
             while resp.status_code != expected_responses[ing] and retry < 3:
                 resp = requests.get(backend_setup.req_url, headers={"host": backend_setup.ingress_hosts[ing]})
-                retry = +1
+                retry = retry + 1
                 wait_before_test()
             assert (
                 resp.status_code == expected_responses[ing]
diff --git a/tests/suite/test_watch_namespace_label.py b/tests/suite/test_watch_namespace_label.py
index 75d3c88d79..53cd6fe9c0 100644
--- a/tests/suite/test_watch_namespace_label.py
+++ b/tests/suite/test_watch_namespace_label.py
@@ -140,7 +140,7 @@ def test_response_codes(self, kube_apis, ingress_controller, backend_setup, expe
             retry = 0
             while resp.status_code != expected_responses[ing] and retry < 3:
                 resp = requests.get(backend_setup.req_url, headers={"host": backend_setup.resource_hosts[ing]})
-                retry = +1
+                retry = retry + 1
                 wait_before_test()
             assert (
                 resp.status_code == expected_responses[ing]
@@ -155,7 +155,7 @@ def test_response_codes(self, kube_apis, ingress_controller, backend_setup, expe
         ing = "foreign-ns-ingress"
         while resp.status_code != 200 and retry < 3:
             resp = requests.get(backend_setup.req_url, headers={"host": backend_setup.resource_hosts[ing]})
-            retry = +1
+            retry = retry + 1
             wait_before_test()
         assert (
             resp.status_code == 200
@@ -169,7 +169,7 @@ def test_response_codes(self, kube_apis, ingress_controller, backend_setup, expe
         retry = 0
         while resp.status_code != expected_responses[ing] and retry < 3:
             resp = requests.get(backend_setup.req_url, headers={"host": backend_setup.resource_hosts[ing]})
-            retry = +1
+            retry = retry + 1
             wait_before_test()
         assert (
             resp.status_code == expected_responses[ing]
@@ -197,7 +197,7 @@ def test_response_codes(self, kube_apis, crd_ingress_controller, backend_setup_v
             retry = 0
             while resp.status_code != expected_responses[vs] and retry < 3:
                 resp = requests.get(backend_setup_vs.req_url, headers={"host": backend_setup_vs.resource_hosts[vs]})
-                retry = +1
+                retry = retry + 1
                 wait_before_test()
             assert (
                 resp.status_code == expected_responses[vs]
@@ -212,7 +212,7 @@ def test_response_codes(self, kube_apis, crd_ingress_controller, backend_setup_v
         vs = "foreign-ns-vs"
         while resp.status_code != 200 and retry < 3:
             resp = requests.get(backend_setup_vs.req_url, headers={"host": backend_setup_vs.resource_hosts[vs]})
-            retry = +1
+            retry = retry + 1
             wait_before_test()
         assert (
             resp.status_code == 200
@@ -226,7 +226,7 @@ def test_response_codes(self, kube_apis, crd_ingress_controller, backend_setup_v
         retry = 0
         while resp.status_code != expected_responses[vs] and retry < 3:
             resp = requests.get(backend_setup_vs.req_url, headers={"host": backend_setup_vs.resource_hosts[vs]})
-            retry = +1
+            retry = retry + 1
             wait_before_test()
         assert (
             resp.status_code == expected_responses[vs]
diff --git a/tests/suite/test_watch_secret_namespace.py b/tests/suite/test_watch_secret_namespace.py
index fee4878bc9..fd775b2663 100644
--- a/tests/suite/test_watch_secret_namespace.py
+++ b/tests/suite/test_watch_secret_namespace.py
@@ -57,7 +57,7 @@ def test_responses(
             except requests.exceptions.SSLError as e:
                 exception = str(e)
                 print(f"SSL certificate exception: {exception}")
-            retry = +1
+            retry = retry + 1
 
         assert resp.status_code == 200