Oh - and Windows Forms has a Keys enumeration so that you don't have to
rely on the underlying value of the event key property.
from System.Windows.Forms import Keys
if e.Key == Keys.Enter:
(or something like that - check out the MSDN documentation for the
enumeration.)
Michael Foord
Michael Foord wrote:
context = {}
def inputBox_KeyDown(s, e):
root.message.Text = ''
key = e.Key.value__
result = root.inputBox.Text
if key == 3: #If 'Enter' key is pressed
try:
try:
root.message.Text = eval(result)
except SyntaxError:
exec result in context
except Exception, e:
print 'Unhandled exception', e
Note the "exec result in context" and my suggested changes to your
exception handling.
Michael
xkrja wrote:
Thanks for the reply.
Below is a snippet of what I've got:
def inputBox_KeyDown(s, e):
root.message.Text = ''
key = e.Key.value__
result = root.inputBox.Text
if key == 3: #If 'Enter' key is pressed
try:
root.message.Text = eval(result)
except:
exec result
root = Application.Current.LoadRootVisual(UserControl(),
"app.xaml")
sys.stdout = Writer(root.message)
root.inputBox.KeyDown += inputBox_KeyDown
Can't I just put everthing that is evaluated or executed in some kind of
global scope so that they can be accessed just like in the console?
If not:
I looked a little at dictionaries but didn't really understand how to
use
them in this case? Can someone give me a short example that can be
used for
my case?
Once again, thanks for all help!
Michael Foord-5 wrote:
You've snipped the code so I can't see it exactly, but I'm pretty
sure you are doing this inside a method. This will create a new
'scope' every time you enter the method and so you are creating a
local variable that disappears when you exit the method.
When you exec you can provide a dictionary as a context for the
execution to happen in. If you store this as an instance member and
re-use the same execution context every time then changes will be
'remembered'.
Michael
--
http://www.ironpythoninaction.com/
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