diff --git a/gui/wxpython/core/gconsole.py b/gui/wxpython/core/gconsole.py
index 4705d639297..4e7919ddf16 100644
--- a/gui/wxpython/core/gconsole.py
+++ b/gui/wxpython/core/gconsole.py
@@ -120,6 +120,14 @@ def SetId(self, id):
     def run(self):
         os.environ["GRASS_MESSAGE_FORMAT"] = "gui"
         while True:
+            variables = {
+                "callable": None,
+                "onDone": None,
+                "onPrepare": None,
+                "userData": None,
+                "addLayer": None,
+                "notification": None,
+            }
             requestId, args, kwds = self.requestQ.get()
             for key in (
                 "callable",
@@ -130,13 +138,11 @@ def run(self):
                 "notification",
             ):
                 if key in kwds:
-                    vars()[key] = kwds[key]
+                    variables[key] = kwds[key]
                     del kwds[key]
-                else:
-                    vars()[key] = None
 
-            if not vars()["callable"]:
-                vars()["callable"] = GrassCmd
+            if not variables["callable"]:
+                variables["callable"] = GrassCmd
 
             requestTime = time.time()
 
@@ -146,21 +152,21 @@ def run(self):
                     cmd=args[0],
                     time=requestTime,
                     pid=requestId,
-                    onPrepare=vars()["onPrepare"],
-                    userData=vars()["userData"],
+                    onPrepare=variables["onPrepare"],
+                    userData=variables["userData"],
                 )
 
                 wx.PostEvent(self.receiver, event)
 
                 # run command
                 event = wxCmdRun(
-                    cmd=args[0], pid=requestId, notification=vars()["notification"]
+                    cmd=args[0], pid=requestId, notification=variables["notification"]
                 )
 
                 wx.PostEvent(self.receiver, event)
 
             time.sleep(0.1)
-            self.requestCmd = vars()["callable"](*args, **kwds)
+            self.requestCmd = variables["callable"](*args, **kwds)
             if self._want_abort_all and self.requestCmd is not None:
                 self.requestCmd.abort()
                 if self.requestQ.empty():
@@ -211,7 +217,7 @@ def run(self):
                         "map=%s" % mapName,
                         "color=%s" % colorTable,
                     ]
-                    self.requestCmdColor = vars()["callable"](*argsColor, **kwds)
+                    self.requestCmdColor = variables["callable"](*argsColor, **kwds)
                     self.resultQ.put((requestId, self.requestCmdColor.run()))
 
             if self.receiver:
@@ -221,10 +227,10 @@ def run(self):
                     returncode=returncode,
                     time=requestTime,
                     pid=requestId,
-                    onDone=vars()["onDone"],
-                    userData=vars()["userData"],
-                    addLayer=vars()["addLayer"],
-                    notification=vars()["notification"],
+                    onDone=variables["onDone"],
+                    userData=variables["userData"],
+                    addLayer=variables["addLayer"],
+                    notification=variables["notification"],
                 )
 
                 # send event
diff --git a/gui/wxpython/core/gthread.py b/gui/wxpython/core/gthread.py
index 7bd8929c553..4a0918a149f 100644
--- a/gui/wxpython/core/gthread.py
+++ b/gui/wxpython/core/gthread.py
@@ -86,14 +86,18 @@ def SetId(self, id):
         gThread.requestId = id
 
     def run(self):
+        variables = {
+            "callable": None,
+            "ondone": None,
+            "userdata": None,
+            "onterminate": None,
+        }
         while True:
             requestId, args, kwds = self.requestQ.get()
             for key in ("callable", "ondone", "userdata", "onterminate"):
                 if key in kwds:
-                    vars()[key] = kwds[key]
+                    variables[key] = kwds[key]
                     del kwds[key]
-                else:
-                    vars()[key] = None
 
             requestTime = time.time()
 
@@ -102,7 +106,7 @@ def run(self):
             time.sleep(0.01)
 
             self._terminate_evt = wxThdTerminate(
-                onterminate=vars()["onterminate"],
+                onterminate=variables["onterminate"],
                 kwds=kwds,
                 args=args,
                 pid=requestId,
@@ -111,7 +115,7 @@ def run(self):
             if self.terminate:
                 return
 
-            ret = vars()["callable"](*args, **kwds)
+            ret = variables["callable"](*args, **kwds)
 
             if self.terminate:
                 return
@@ -121,12 +125,12 @@ def run(self):
             self.resultQ.put((requestId, ret))
 
             event = wxCmdDone(
-                ondone=vars()["ondone"],
+                ondone=variables["ondone"],
                 kwds=kwds,
                 args=args,  # TODO expand args to kwds
                 ret=ret,
                 exception=exception,
-                userdata=vars()["userdata"],
+                userdata=variables["userdata"],
                 pid=requestId,
             )