On 07/03/2016 15:54, Tony van der Hoff wrote:
I thought I understood this, but apparently not:
Under py3:
1. "import tkinter" imports the whole module into the name space. Any
access to names therein must be prefixed with the module name.
ie top = tkinter.Tk()
But tkinter.messagebox.showwarning() errors with "module has no
attribute 'messagebox'"
2. "from tkinter import *" loads the name space from the module into the
program name space. No need to prefix the module name onto the attribute
name. Pollutes the name space, but makes typing easier.
ie top = Tk()
But messagebox.showwarning() still errors.
3. in either of the above cases, if I add "from tkinter import
messagebox, the attribute resolves correctly.
I imagined that the "*" form implied "load the lot". Evidently, my
understanding is lacking. Will somebody please put me straight, or give
me a reference to some definitive documentation?
As a slight aside, and as you've all ready had answers, you might like
to read the Bryan Oakley response to this
http://stackoverflow.com/questions/17466561/best-way-to-structure-a-tkinter-application
--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.
Mark Lawrence
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