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-rw-r--r--Lib/tkinter/tix.py13
1 files changed, 9 insertions, 4 deletions
diff --git a/Lib/tkinter/tix.py b/Lib/tkinter/tix.py
index 89113fd..7fb4bc5 100644
--- a/Lib/tkinter/tix.py
+++ b/Lib/tkinter/tix.py
@@ -477,10 +477,15 @@ class DisplayStyle:
(multiple) Display Items"""
def __init__(self, itemtype, cnf={}, **kw):
- master = tkinter._default_root # global from Tkinter
- if not master and 'refwindow' in cnf: master=cnf['refwindow']
- elif not master and 'refwindow' in kw: master= kw['refwindow']
- elif not master: raise RuntimeError("Too early to create display style: no root window")
+ if 'refwindow' in kw:
+ master = kw['refwindow']
+ elif 'refwindow' in cnf:
+ master = cnf['refwindow']
+ else:
+ master = tkinter._default_root
+ if not master:
+ raise RuntimeError("Too early to create display style: "
+ "no root window")
self.tk = master.tk
self.stylename = self.tk.call('tixDisplayStyle', itemtype,
*self._options(cnf,kw) )