On Tue, 13 Dec 2011 16:24:05 +0000, Andrea Crotti wrote:
> I'm not sure for how long I had this bug, and I could not understand the
> problem.
>
> I had a function which would return a boolean
>
> def func_bool():
> if x:
> return True
> else: return False
x is a global? Poor design. But in any case, instead of an explicit
if...else block, the canonical way to convert an arbitrary object to True/
False is with bool:
def func_bool():
return bool(x)
But you don't need it. See below.
> Now somewhere else I had
>
> if func_bool:
> # do something
That would be better written as:
if x:
...
since func_bool always refers to x, it is just a needless level of
indirection that doesn't buy you anything.
> I could not quite understand why it was always true, until I finally
> noticed that the () were missing.
> Is there some tool to avoid these stupid mistakes? (pylint doesn't warn
> me on that)
Can't help you with that.
Have you tried pychecker? I can't help you with that either :)
--
Steven
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