On 2/3/2011 4:41 PM Alex Hall said...
Hi all,
I am wondering what the best way to do the following would be: throw
an exception, or always return an object but set an error flag if
something goes wrong? Here is an example:
class c:
def __init__(self):
self.error=False
def func(self, val):
if val!=10: self.error=True
someObj=c()
someObj.func(5)
if someObj.error: #do stuff
OR:
class c:
def __init__(self):
self.error=False
def func(self, val):
if val!=10: throw ValueError #I know the syntax is wrong
someObj=c()
try:
someObj.func(5)
except:
#do stuff
Which is the "standard" way when dealing with objects? Throw
exceptions or always return
Yes, throw exceptions and always return the expected result. Expecting
non-class (ie, external to the class) access to verify that the result
is usable would be , I think, generally frowned upon.
Emile
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