Subject: Re: tkFileDialog question
Matt,
There is also a nice thing you need to know about Python if you
already do not know. That is the fact that all empty collections bool
to False. This makes Truth testing easier.
>>> bool([])
False
>>> bool('')
False
>>> bool(
Matt,
There is also a nice thing you need to know about Python if you
already do not know. That is the fact that all empty collections bool
to False. This makes Truth testing easier.
>>> bool([])
False
>>> bool('')
False
>>> bool({})
False
>>> bool([1])
True
>>> bool([[]])
True
>>> bool(' ')
True
On Nov 15, 8:56 pm, "Gabriel Genellina"
wrote:
> En Fri, 13 Nov 2009 11:32:37 -0300, Matt Mitchell
> escribió:
>
> > answer = tkFileDialog.askdirectory()
>
> > if answer is not '':
> > #do stuff
>
> Although it "reads well", this is *wrong*. You want != here, not the `is
> not` operator.
>
En Fri, 13 Nov 2009 11:32:37 -0300, Matt Mitchell
escribió:
answer = tkFileDialog.askdirectory()
if answer is not '':
#do stuff
Although it "reads well", this is *wrong*. You want != here, not the `is
not` operator.
if answer != '': ...
If you want to compare the *values* of t
Opps, i see you answered your own question ;-)
To save you more hours of Googling take a look at these two sites!
#great reference
http://infohost.nmt.edu/tcc/help/pubs/tkinter/
#more in-depth
http://effbot.org/tkinterbook/
you'll want to keep them both under your pillow.
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On Nov 13, 2:47 pm, "Matt Mitchell" wrote:
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James, thank you very much for your answer.
Jaime
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Oops,
That should have been,
class MyApp:
def __init__(self, parent):
self.myParent = parent
self.myContainer1 = Frame(parent)
self.myContainer1.pack()
self.entry = Entry(self.myContainer1)
self.entry.grid(r
I think you are better off not binding a button like you are doing.
Use the "command" option to get the behavior you want. E.g:
class MyApp:
def __init__(self, parent):
self.myParent = parent
self.myContainer1 = Frame(parent)
self.myContainer
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