On Thu, 24 Feb 2005 11:15:07 -0800, Scott David Daniels
<[EMAIL PROTECTED]> wrote:
>
> I have started doing the following to watch for exceptions in wxPython.
> I'd like any input about (A) the interface, and (B) the frame before I
> throw it in the recipes book.
>
> import wx, os, sys
> errorframe = None
>
> def watcherrors(function):
> '''function decorator to display Exception information.'''
> def substitute(*args, **kwargs):
>...
Pretty cool.
Question on decorators in general. Can you parameterize those?
If I wanted to something and after the function call for example, I
would expect something like this would work.
def prepostdecorator(function,pre,post):
def wrapper(*args,**kwargs):
pre()
result = function(*args,**kwargs)
post()
return result
return wrapper
def dopre():
print "call pre"
def dopost():
print "call post"
@prepostdecorator(pre,post)
def sayhello(Name):
print "Hey %s, nice to meet you" % Name
#sayhello = prepostdecorator(sayhello,dopre,dopost)
if __name__=="__main__":
sayhello("Dude")
but I get ...
TypeError: prepostdecorator() takes exactly 3 arguments (2 given)
Where as
def prepostdecorator(function,pre,post):
def wrapper(*args,**kwargs):
pre()
result = function(*args,**kwargs)
post()
return result
return wrapper
def dopre():
print "call pre"
def dopost():
print "call post"
def sayhello(Name):
print "Hey %s, nice to meet you" % Name
sayhello = prepostdecorator(sayhello,dopre,dopost)
if __name__=="__main__":
sayhello("Dude")
#outputs
call pre
Hey Dude, nice to meet you
call post
Does what I want.
I guess I'm having problems with how function get's in there similair
to how self magically gets in a method, except when you specify other
params. Got linky?
--
Thomas G. Willis
http://paperbackmusic.net
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