diff options
Diffstat (limited to 'Lib/lib-tk/Tkinter.py')
| -rw-r--r-- | Lib/lib-tk/Tkinter.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Lib/lib-tk/Tkinter.py b/Lib/lib-tk/Tkinter.py index 6a91ba9..700f6bb 100644 --- a/Lib/lib-tk/Tkinter.py +++ b/Lib/lib-tk/Tkinter.py @@ -223,11 +223,13 @@ class Variable: _varnum += 1 if value is not None: self.set(value) - elif not self._tk.call("info", "exists", self._name): + elif not self._tk.getboolean(self._tk.call("info", "exists", self._name)): self.set(self._default) def __del__(self): """Unset the variable in Tcl.""" - self._tk.globalunsetvar(self._name) + if (self._tk is not None and + self._tk.getboolean(self._tk.call("info", "exists", self._name))): + self._tk.globalunsetvar(self._name) def __str__(self): """Return the name of the variable in Tcl.""" return self._name |