[issue26673] Tkinter error when opening IDLE configuration menu (Tcl/Tk 8.6)

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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pull_requests: +3652

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[issue26673] Tkinter error when opening IDLE configuration menu (Tcl/Tk 8.6)

[Terry J. Reedy]

Terry J. Reedy added the comment:

I would like to change the code a bit more (like using IntVar for size 
everywhere), but I don't want to do so without tests.  The problem is that tk 
variables and font functions require a root window and none of the linux 
buildbots allow that.  (They all run 'headless'.)

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resolution:  -> fixed
stage: test needed -> resolved
status: open -> closed

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[issue26673] Tkinter error when opening IDLE configuration menu (Tcl/Tk 8.6)

[Roundup Robot]

Roundup Robot added the comment:

New changeset a873265366ba by Terry Jan Reedy in branch '2.7':
Issue #26673: Protect IDLE from Linux fonts with reported default size 0.
https://hg.python.org/cpython/rev/a873265366ba

New changeset 1464df337152 by Terry Jan Reedy in branch '3.5':
Issue #26673: Protect IDLE from Linux fonts with reported default size 0.
https://hg.python.org/cpython/rev/1464df337152

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nosy: +python-dev

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[issue26673] Tkinter error when opening IDLE configuration menu (Tcl/Tk 8.6)

[Odcar]

Odcar added the comment:

Terry J. Reedy: That fixes the problem for me!
Xubuntu 16.04, Python 2.7.11+, Tk 8.6.5. I have not tried it in Idle for Python 
3 though.

--
nosy: +Odcar

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[issue26673] Tkinter error when opening IDLE configuration menu (Tcl/Tk 8.6)

[Terry J. Reedy]

Terry J. Reedy added the comment:

Anyone seeing problem: In /Lib/idlelib/configHandler.py, about line 685, in "if 
size < 0:", change '<' to '<='.  Remove the workaround of overriding 
'TkFixedFont' with 'courier'.  Does this fix the problem?

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[issue26673] Tkinter error when opening IDLE configuration menu (Tcl/Tk 8.6)

[Terry J. Reedy]

Terry J. Reedy added the comment:

Mark, changing the default font from Courier to TkFixedFont has introduced or 
exposed a bug in any of IDLE, tkinter, or tk 8.6.4 on Linux.  The result is 
that trying to open the configuration menu fails with TclError.  What do your 
think is the best solution?

Mathias, it seems to me that fontsize should alsways be an Intvar.  I have no 
idea why StringVar is used, except possibly as a workaround when the code was 
written.

--
nosy: +markroseman

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[issue26673] Tkinter error when opening IDLE configuration menu (Tcl/Tk 8.6)

[Matthias Klose]

Matthias Klose added the comment:

using this as a work-around, not tested with Tcl/Tk 8.5 or older.

--- a/Lib/idlelib/configDialog.py
+++ b/Lib/idlelib/configDialog.py
@@ -113,7 +113,11 @@ class ConfigDialog(Toplevel):
 
 def CreatePageFontTab(self):
 parent = self.parent
-self.fontSize = StringVar(parent)
+# see issue #26673
+if TkVersion >= 8.6:
+self.fontSize = IntVar(parent)
+else:
+self.fontSize = StringVar(parent)
 self.fontBold = BooleanVar(parent)
 self.fontName = StringVar(parent)
 self.spaceNum = IntVar(parent)

--

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[issue26673] Tkinter error when opening IDLE configuration menu (Tcl/Tk 8.6)

[Matthias Klose]

Matthias Klose added the comment:

Seen on Debian and Ubuntu as well. All these distros have in common to use 
Tcl/Tk 8.6.

--
nosy: +doko
title: Tkinter error when opening IDLE configuration menu -> Tkinter error when 
opening IDLE configuration menu (Tcl/Tk 8.6)

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