E
Edward C. Jones
Here is a stripped-down version of a Python Cookbook recipe. Is there a
simpler, more Pythonical, natural way of doing this?
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#! /usr/bin/env python
# Modified from Python Cookbook entry 91192, "eiffelmethod" by Andres
# Tuells. The url is
# http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/91192
class MethodWraper(object):
def __init__(self, method):
self.method = method
def __get__(self, inst, type=None):
result = wrapper(inst, self.method)
setattr(inst, self.method.__name__, result)
return result
class wrapper:
def __init__(self, inst, method):
self.instance = inst
self.method = method
def __call__(self, *args, **kargs):
print 'pre'
result = apply(self.method, (self.instance,) + args, kargs)
print 'post'
return result
def test():
class C:
def f(self, arg):
print 'in f'
return arg+1
f = MethodWraper(f)
c = C()
print c.f(1)
if __name__=='__main__':
test()
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simpler, more Pythonical, natural way of doing this?
------
#! /usr/bin/env python
# Modified from Python Cookbook entry 91192, "eiffelmethod" by Andres
# Tuells. The url is
# http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/91192
class MethodWraper(object):
def __init__(self, method):
self.method = method
def __get__(self, inst, type=None):
result = wrapper(inst, self.method)
setattr(inst, self.method.__name__, result)
return result
class wrapper:
def __init__(self, inst, method):
self.instance = inst
self.method = method
def __call__(self, *args, **kargs):
print 'pre'
result = apply(self.method, (self.instance,) + args, kargs)
print 'post'
return result
def test():
class C:
def f(self, arg):
print 'in f'
return arg+1
f = MethodWraper(f)
c = C()
print c.f(1)
if __name__=='__main__':
test()
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