Hi all,
In a framework I've written to test out website, I use something like
the following to add functionality at various points:
#-----------------------------------
def do_work(callable, data):
assertion = False
try:
assertion = callable.is_assertion
except:
pass
out = callable(data)
if assertion:
print "Test " % ("Failed", "Suceeded")[out]
return out
def get_assn(fn):
def wrapper(*args, **kw):
return fn(*args, **kw)
out = wrapper
out.is_assertion = True
return out
def funct(data):
return True
x = funct
y = get_assn(funct)
do_work(x, data)
do_work(y, data)
#-----------------------------------
The idea is that I can mark some functions as being assertions, and use
the same function for applying the callable to the data and optionally
printing some information. This way I needn't worry whether the
callable is a custom object or a simple function.
The question is, is this a reasonable thing to do? It works, but is it
considered bad practice to add attributes to functions? And are there
any dangers?
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