Michael Foord wrote:
Kristian Jaksch wrote:
*
def inputBox_KeyDown(s, e):
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
root.inputBox.Text = "" #Clearing inputBox*
But this creates a fixed size matrix and I still get an exception if
I type for example *m=Matrix(2,2)* in the 'inputBox'. I want to make
this as general as possible. Can't I place everything that is
imported from 'Mapack' into the 'context' dictionary together with
whatever the user types in besides of that?
You can. I'll give you a clue - import * makes it harder. Try
importing Mapack and then it will be easier to put things from the
module into the dictionary.
Hmmm - actually you could exec the import * inside the context to
populate it.
Michael
There are several more classes that must be placed in 'context'. It
would be nice to have the user type *n=m.Transpose()* or whatever
method he wants to get out from the 'Mapack' library and then let the
code be executed correctly.
Does that not work already - it should do.
Michael
Thanks very much!
2008/12/16 Michael Foord <[email protected]
<mailto:[email protected]>>:
> xkrja wrote:
>>
>> Thanks!
>>
>> I'm using Ironpython with Silverlight so I can't get access to
>> Windows.Forms
>> >
> Ah - in which case it probably lives in System.Windows.Input
>>
>> Please bear with me :-) New stuff's showing up all the time. The
solution
>> you proposed worked but there must be something I don't get with the
>> scope.
>> Please look at my snippet below:
>>
>> >
> The advantage of a specific context is that you control what
objects the
> code has access to. Try setting the Matrix object into the
dictionary with
> the key 'm' and your code should have access to it.
>
> Michael
>
>> import clr, sys
>> clr.AddReference("Mapack, Version=1.0.0.0, Culture=neutral,
>> PublicKeyToken=null")
>> from Mapack import *
>> .
>> .
>> .
>>
>> def inputBox_KeyDown(s, e):
>> 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
>> root.inputBox.Text = "" m =
Matrix(2,2) >> #NOTICE: If I hard code this
>> definition in the function it works
>> print m #but if I try to type
>> m=Matrix(2,2) in inputBox it says:
>> #"Matrix is not defined"
>>
>>
>> I can create an object of the Matrix()-class if I code it straight
into
>> the
>> function as shown in my snippet above but I can't type
m=Matrix(2,2) in
>> the
>> 'inputBox' and then execute it. Then I get an exception: "Matrix
is not
>> defined".
>> How can I work around this?
>>
>> Thanks very much!
>> >>
>> Michael Foord-5 wrote:
>> >>>
>>> 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
>>>
>>>
>>> >>
>> >
>
> --
> http://www.ironpythoninaction.com/
> http://www.voidspace.org.uk/blog
>
>
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