diff --git a/modules/interface.py b/modules/interface.py
index 58c2b6b..a4139f5 100644
--- a/modules/interface.py
+++ b/modules/interface.py
@@ -31,7 +31,7 @@ class ZabbixInterface:
             zabbix = self.context["zabbix"]
             if "interface_type" in zabbix:
                 self.interface["type"] = zabbix["interface_type"]
-                if not "interface_port" in zabbix:
+                if "interface_port" not in zabbix:
                     self._set_default_port()
                     return True
                 self.interface["port"] = zabbix["interface_port"]
diff --git a/modules/tools.py b/modules/tools.py
index f612993..d0f7ce7 100644
--- a/modules/tools.py
+++ b/modules/tools.py
@@ -188,7 +188,7 @@ def sanatize_log_output(data):
         del sanitized_data["interfaceid"]
         # InterfaceID also hints that this is a interface update.
         # A check is required if there are no macro's used for SNMP security parameters.
-        if not "details" in data:
+        if "details" not in data:
             return sanitized_data
         for key, detail in sanitized_data["details"].items():
             # If the detail is a secret, we don't want to log it.
diff --git a/modules/usermacros.py b/modules/usermacros.py
index c1ef92f..2631a40 100644
--- a/modules/usermacros.py
+++ b/modules/usermacros.py
@@ -57,7 +57,7 @@ class ZabbixUsermacros:
         if self.validate_macro(macro_name):
             macro["macro"] = str(macro_name)
             if isinstance(macro_properties, dict):
-                if not "value" in macro_properties:
+                if "value" not in macro_properties:
                     self.logger.warning(
                         f"Host {self.name}: Usermacro {macro_name} has "
                         "no value in Netbox, skipping."