I see the same error when using IDLE for _Python 2.7_ when trying to open Options -> Configure IDLE:
$ idle
Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1540, in __call__
return self.func(*args)
File "/usr/lib/python2.7/idlelib/EditorWindow.py", line 543, in config_dialog
configDialog.ConfigDialog(self.top,'Settings')
File "/usr/lib/python2.7/idlelib/configDialog.py", line 72, in __init__
self.LoadConfigs()
File "/usr/lib/python2.7/idlelib/configDialog.py", line 1103, in LoadConfigs
self.LoadFontCfg()
File "/usr/lib/python2.7/idlelib/configDialog.py", line 1005, in LoadFontCfg
self.SetFontSample()
File "/usr/lib/python2.7/idlelib/configDialog.py", line 883, in SetFontSample
self.labelFontSample.config(font=newFont)
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1329, in configure
return self._configure('configure', cnf, kw)
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1320, in _configure
self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
TclError: expected integer but got ""
$ idle
Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1540, in __call__
return self.func(*args)
File "/usr/lib/python2.7/idlelib/EditorWindow.py", line 543, in config_dialog
configDialog.ConfigDialog(self.top,'Settings')
File "/usr/lib/python2.7/idlelib/configDialog.py", line 72, in __init__
self.LoadConfigs()
File "/usr/lib/python2.7/idlelib/configDialog.py", line 1103, in LoadConfigs
self.LoadFontCfg()
File "/usr/lib/python2.7/idlelib/configDialog.py", line 1005, in LoadFontCfg
self.SetFontSample()
File "/usr/lib/python2.7/idlelib/configDialog.py", line 883, in SetFontSample
self.labelFontSample.config(font=newFont)
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1329, in configure
return self._configure('configure', cnf, kw)
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1320, in _configure
self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
TclError: expected integer but got ""
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Foundations Bugs, which is subscribed to python3-defaults in Ubuntu.
https://bugs.launchpad.net/bugs/1574892
Title:
IDLE 3.5.1+ runtime error on Options -> Configure IDLE
Status in python3-defaults package in Ubuntu:
Confirmed
Bug description:
Open IDLE for Python 3 on Ubuntu 16.04 (idle3 3.5.1-3) and click Options -> Configure IDLE.
The menus of IDLE stop responding and the terminal shows the following message:
Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/lib/python3.5/tkinter/__init__.py", line 1553, in __call__
return self.func(*args)
File "/usr/lib/python3.5/idlelib/EditorWindow.py", line 516, in config_dialog
configDialog.ConfigDialog(self.top,'Settings')
File "/usr/lib/python3.5/idlelib/configDialog.py", line 74, in __init__
self.LoadConfigs()
File "/usr/lib/python3.5/idlelib/configDialog.py", line 1086, in LoadConfigs
self.LoadFontCfg()
File "/usr/lib/python3.5/idlelib/configDialog.py", line 988, in LoadFontCfg
self.SetFontSample()
File "/usr/lib/python3.5/idlelib/configDialog.py", line 866, in SetFontSample
self.labelFontSample.config(font=newFont)
File "/usr/lib/python3.5/tkinter/__init__.py", line 1333, in configure
return self._configure('configure', cnf, kw)
File "/usr/lib/python3.5/tkinter/__init__.py", line 1324, in _configure
self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
_tkinter.TclError: expected integer but got ""
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