Hi all,
I'm trying to convert functions - pass a few functions to a converting
function, which change their behaviour and return the changed
functions:
>>> def cfuncs(*funcs):
n = []
for f in funcs:
def ff(*args, **key):
print 'Start!', f.func_name
res = f(*args, **key)
print 'End', f.func_name
return res
n.append(ff)
return n
then I try it using two functions:
>>> def f1():
print 'hello'
>>> def f2(x):
return 2 * x
Eventually:
>>> newfuncs = cfuncs(f1, f2)
I would expect newfuncs to hold changed versions of f1 and f2, but
what is actually contained in newfuncs is twice the changed version of
f2.
That is:
>>> newfuncs[1](100)
Start! f2
End f2
200
which is what I expected,
but:
>>> newfuncs[0]()
Start! f2
Traceback (most recent call last):
File "<pyshell#267>", line 1, in <module>
newfuncs[0]()
File "<pyshell#261>", line 6, in ff
res = f(*args, **key)
TypeError: f2() takes exactly 1 argument (0 given)
which is not.
I'll appreciate your help in pointing out the mistake in defining
cfuncs and how to fix it.
Thank you very much!
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