diff --git a/PPOCRLabel.py b/PPOCRLabel.py
index b1fead3..444b956 100644
--- a/PPOCRLabel.py
+++ b/PPOCRLabel.py
@@ -2329,7 +2329,9 @@ def openDatasetDirDialog(self):
 
         else:
             if self.lang == "ch":
-                self.msgBox.warning(self, "提示", "\n 原文件夹已不存在,请从新选择数据集路径!")
+                self.msgBox.warning(
+                    self, "提示", "\n 原文件夹已不存在,请从新选择数据集路径!"
+                )
             else:
                 self.msgBox.warning(
                     self,
@@ -2584,6 +2586,8 @@ def deleteImg(self):
                 imgidx = self.getImglabelidx(self.filePath)
                 if imgidx in self.PPlabel.keys():
                     self.PPlabel.pop(imgidx)
+
+                self.filePath = None
                 self.openNextImg()
                 self.importDirImages(self.lastOpenDir, isDelete=True)
 
diff --git a/libs/canvas.py b/libs/canvas.py
index 6808784..e36fb66 100644
--- a/libs/canvas.py
+++ b/libs/canvas.py
@@ -220,7 +220,6 @@ def mouseMoveEvent(self, ev):
         # - Highlight shapes
         # - Highlight vertex
         # Update shape/vertex fill and tooltip value accordingly.
-        # self.setToolTip("Image")
         for shape in reversed([s for s in self.shapes if self.isVisible(s)]):
             # Look for a nearby vertex to highlight. If that fails,
             # check if we happen to be inside a shape.
@@ -231,8 +230,6 @@ def mouseMoveEvent(self, ev):
                 self.hVertex, self.hShape = index, shape
                 shape.highlightVertex(index, shape.MOVE_VERTEX)
                 self.overrideCursor(CURSOR_POINT)
-                self.setToolTip("Click & drag to move point")
-                self.setStatusTip(self.toolTip())
                 self.update()
                 break
             else:
@@ -241,8 +238,6 @@ def mouseMoveEvent(self, ev):
                         if self.selectedVertex():
                             self.hShape.highlightClear()
                         self.hVertex, self.hShape = None, shape
-                        self.setToolTip("Click & drag to move shape '%s'" % shape.label)
-                        self.setStatusTip(self.toolTip())
                         self.overrideCursor(CURSOR_GRAB)
                         self.update()
                         break