type comparison and wxpython

[borris]

ive been trying to do a test for type with wxpython objects

like

passing in a wx.TextCtrl into

def XXX(obj)
if type(obj) is type(self.Butto n)

I have to make an object self.Button to get its type.
as I tried is type("wx.Button ") which didnt work.

trouble is the button must have a parent, which appears on the frame (Ill
try to get rid of it)

but I should be able to use text to set the type
Ive tried "wx._controls.T extCtrl" which didnt work

any hints welcome

btw Im newbie to python, coming from Java and I reckon its cool and sleek
and coming from java Swing, I reckon wxPython is probably better

[Simon Forman]

Re: type comparison and wxpython

borris wrote:

ive been trying to do a test for type with wxpython objects
>
like
>
passing in a wx.TextCtrl into
>
def XXX(obj)
if type(obj) is type(self.Butto n)
>
I have to make an object self.Button to get its type.
as I tried is type("wx.Button ") which didnt work.

type("wx.Button ") would return <type 'str'>, did you mean
type(wx.Button) ? That still wouldn't be what you wanted.. For
"classic" classes type() returns <type 'classobj'>; for new style
classes it returns <type 'type'>


Assuming that wx.Button is the class of your Button objects then what
you want is the isinstance() function.

if isinstance(obj, wx.Button):

>>help(isinstan ce)

Help on built-in function isinstance in module __builtin__:

isinstance(...)
isinstance(obje ct, class-or-type-or-tuple) -bool

Return whether an object is an instance of a class or of a subclass
thereof.
With a type as second argument, return whether that is the object's
type.
The form using a tuple, isinstance(x, (A, B, ...)), is a shortcut for
isinstance(x, A) or isinstance(x, B) or ... (etc.).

>
trouble is the button must have a parent, which appears on the frame (Ill
try to get rid of it)
>
but I should be able to use text to set the type
Ive tried "wx._controls.T extCtrl" which didnt work

huh?

>
any hints welcome
>
btw Im newbie to python, coming from Java and I reckon its cool and sleek
and coming from java Swing, I reckon wxPython is probably better