--- a/eric6/Plugins/PluginVcsMercurial.py	Wed Apr 14 19:38:19 2021 +0200
+++ b/eric6/Plugins/PluginVcsMercurial.py	Wed Apr 14 19:59:16 2021 +0200
@@ -8,6 +8,7 @@
 """
 
 import os
+import contextlib
 
 from PyQt5.QtCore import QObject, QCoreApplication, QByteArray
 
@@ -197,11 +198,9 @@
         
         from VcsPlugins.vcsMercurial.ProjectHelper import HgProjectHelper
         self.__projectHelperObject = HgProjectHelper(None, None)
-        try:
+        with contextlib.suppress(KeyError):
             e5App().registerPluginObject(
                 pluginTypename, self.__projectHelperObject, pluginType)
-        except KeyError:
-            pass    # ignore duplicate registration
         readShortcuts(pluginName=pluginTypename)
     
     def getProjectHelper(self):