[issue22133] IDLE: Set correct WM_CLASS on X11

[Terry J. Reedy]

Terry J. Reedy added the comment:

Serhiy, do you know if the trivial addition of "class_='IDLE'" can have any ill effect on non-gnome systems? It looks sensible to me, and I see no effect on Windows.
-    self.top = top = WindowList.ListedToplevel(root, menu=self.menubar)
+    self.top = top = WindowList.ListedToplevel(root, class_='IDLE',
+                                               menu=self.menubar)

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nosy: +serhiy.storchaka

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<http://bugs.python.org/issue22133>
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