Use packaging.version

setup.py

@@ -39,7 +39,7 @@
     if sys.version_info < (3, 6):
         raise SystemExit('ERROR: zabbix-cli needs at least python 3.6 to work')
 
-    install_requires = ['requests']
+    install_requires = ['requests', 'packaging']
 
     #
     # Setup

zabbix_cli/cli.py

@@ -36,12 +36,13 @@
 import textwrap
 import time
 
+from packaging.version import Version
+
 import zabbix_cli
 import zabbix_cli.apiutils
 import zabbix_cli.utils
 from zabbix_cli.prettytable import ALL, FRAME, PrettyTable
 from zabbix_cli.pyzabbix import ZabbixAPI
-from zabbix_cli.version import StrictVersion
 
 logger = logging.getLogger(__name__)
 
@@ -4935,8 +4936,8 @@ def do_acknowledge_event(self, args):
             return False
 
         # Hotfix for Zabbix 4.0 compability
-        api_version = StrictVersion(self.zapi.api_version())
-        if api_version >= StrictVersion("4.0"):
+        api_version = Version(self.zapi.api_version())
+        if api_version >= Version("4.0"):
             if close == 'false':
                 action = 6  # "Add message" and "Acknowledge"
             elif close == 'true':
@@ -5050,8 +5051,8 @@ def do_acknowledge_trigger_last_event(self, args):
                 event_ids.append(data[0]['eventid'])
 
             # Hotfix for Zabbix 4.0 compability
-            api_version = StrictVersion(self.zapi.api_version())
-            if api_version >= StrictVersion("4.0"):
+            api_version = Version(self.zapi.api_version())
+            if api_version >= Version("4.0"):
                 if close == 'false':
                     action = 6  # "Add message" and "Acknowledge"
                 elif close == 'true':