[Baypiggies] Python way to avoid usage of raise

[Tung Wai Yip]

The recipe only collect information from the stack. It won't resume  
execution after an exception is throw.

It maybe easier to use a wrapper for all function call.


>>> def call(func, *args, **kwargs):
...   try:
...     return func(*args,**kwargs)
...   except:
...     # auto ignore exception!
...     return
...
>>> res = call(open,'dummy file','rb')
>>> # look mom, no exception!

Wai Yip



> On Tue, Oct 5, 2010 at 7:15 PM, Nick S Kanakakorn <bbdada at gmail.com>  
> wrote:
>> Hi,
>> My work place has imposed a rules for no use of exception (catching is
>> allowed).  If I have code like this
>
> I've seen this anti-pattern up close. There is no Pythonic answer -
> exceptions are the answer. I've adapted this recipe[0] to get all
> kinds of information from the call stack when something fails,
> although it depends on the failing function to call it... Definitely a
> pain. I feel for you. Hopefully the code is solid enough not to need
> too much debugging.
>
> For the curious, the rationale I heard is that failure isn't important
> enough to stop the execution or the minor variant, failures are
> irrelevant to the execution.
>
> [0] http://code.activestate.com/recipes/52215/
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