python · vstinner · Jun 2, 2021
@@ -242,46 +242,37 @@ def winconfig_event(self, event):
        self.is_configuring = True
        if not self.is_active():
            return
-
-        # Since the <Configure> event may occur after the completion window is gone,
-        # catch potential TclError exceptions when accessing acw.  See: bpo-41611.
-        try:
-            # Position the completion list window
-            text = self.widget
-            text.see(self.startindex)
-            x, y, cx, cy = text.bbox(self.startindex)
-            acw = self.autocompletewindow
-            if platform.system().startswith('Windows'):
-                # On Windows an update() call is needed for the completion
-                # list window to be created, so that we can fetch its width
-                # and height.  However, this is not needed on other platforms
-                # (tested on Ubuntu and macOS) but at one point began
-                # causing freezes on macOS.  See issues 37849 and 41611.
-                acw.update()
-            acw_width, acw_height = acw.winfo_width(), acw.winfo_height()
-            text_width, text_height = text.winfo_width(), text.winfo_height()
-            new_x = text.winfo_rootx() + min(x, max(0, text_width - acw_width))
-            new_y = text.winfo_rooty() + y
-            if (text_height - (y + cy) >= acw_height # enough height below
-                or y < acw_height): # not enough height above
-                # place acw below current line
-                new_y += cy
-            else:
-                # place acw above current line
-                new_y -= acw_height
-            acw.wm_geometry("+%d+%d" % (new_x, new_y))
-            acw.update_idletasks()
-        except TclError:
-            pass
+        # Position the completion list window
+        text = self.widget
+        text.see(self.startindex)
+        x, y, cx, cy = text.bbox(self.startindex)
+        acw = self.autocompletewindow
+        if platform.system().startswith('Windows'):
+            # On Windows an update() call is needed for the completion list
+            # window to be created, so that we can fetch its width and
+            # height. However, this is not needed on other platforms (tested
+            # on Ubuntu and macOS) but at one point began causing freezes on
+            # macOS.  See issues 37849 and 41611.
+            acw.update()
+        acw_width, acw_height = acw.winfo_width(), acw.winfo_height()
+        text_width, text_height = text.winfo_width(), text.winfo_height()
+        new_x = text.winfo_rootx() + min(x, max(0, text_width - acw_width))
+        new_y = text.winfo_rooty() + y
+        if (text_height - (y + cy) >= acw_height # enough height below
+            or y < acw_height): # not enough height above
+            # place acw below current line
+            new_y += cy
+        else:
+            # place acw above current line
+            new_y -= acw_height
+        acw.wm_geometry("+%d+%d" % (new_x, new_y))
+        acw.update_idletasks()

        if platform.system().startswith('Windows'):
-            # See issue 15786.  When on Windows platform, Tk will misbehave
+            # See issue 15786. When on Windows platform, Tk will misbehave
            # to call winconfig_event multiple times, we need to prevent this,
            # otherwise mouse button double click will not be able to used.
-            try:
-                acw.unbind(WINCONFIG_SEQUENCE, self.winconfigid)
-            except TclError:
-                pass
+            acw.unbind(WINCONFIG_SEQUENCE, self.winconfigid)
            self.winconfigid = None

        self.is_configuring = False

diff --git a/Misc/NEWS.d/next/IDLE/2021-05-27-18-22-46.bpo-41611.jOKpfc.rst b/Misc/NEWS.d/next/IDLE/2021-05-27-18-22-46.bpo-41611.jOKpfc.rst