Eric Brunel said:
>> The Tk instance is registered in a hidden variable in the
>> Tkinter module. When
>> you don't specify a master, it'll use the latest created Tk
>> instance one by
>> default. BTW, the latest should be the only one: it is
>> quite unsafe to create
>> several Tk instances in the same application.
Again, "latest" is incorrect for IDLE 2.6.1:
>>> from Tkinter import *
>>> root1 = Tk()
>>> root2 = Tk()
>>> root3 = Tk()
>>> frm = Frame() # no master specified
>>> frm.master is root3
False
>>> frm.master is root1
True
>> Well, I personnally don't see any point on doing any master creation
>> implicitely, so I never use this master auto-creation for
>> anything.
+1. "Explicit is better than implicit."
-John
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