[python-uk] Library advice + anyone built a real time bidder?
Hansel Dunlop
hansel at interpretthis.org
Fri Mar 27 12:03:58 CET 2015
Ah ha!
from the 2nd link:
# Python 2 and 3: option 1from six import reraise as raise_# orfrom
future.utils import raise_
traceback = sys.exc_info()[2]raise_(ValueError, "dodgy value", traceback)
Perfect, thanks Tim.
On Fri, Mar 27, 2015 at 10:54 AM, Tim Golden <mail at timgolden.me.uk> wrote:
> On 27/03/2015 10:47, Hansel Dunlop wrote:
> > Happy Friday Python People! (yes, you're happy, because it's Friday)
> >
> > Two questions for you:
> >
> > 1. I'm releasing a library. That I wrote in 2.7. But I want it to make it
> > compatible with 2.7+. What's the best approach for this? Especially
> > when a bit of code for 2.7 is a SyntaxError in 3+
> >
> > raise test_exception, None, test_traceback # Syntax error
> in 3+
> >
> > raise test_exception.with_traceback(test_traceback) # 3+ api
> >
> > So, do I write a convoluted bit of code that detects if I'm in 2.7 and
> > wraps the exception in something that emulates the 3+ api?
> > Do I have two similar modules, and decide which one to import based
> > on Python version? Do I have two different versions?
> > That seems like an obviously daft idea... but?
>
> (Hopefully) useful links:
>
> http://python3porting.com/noconv.html#handling-exceptions
>
> http://python-future.org/compatible_idioms.html
>
> https://docs.python.org/3/howto/pyporting.html#update-your-code
>
> I'm not sure if they exactly address your case, but hopefully they'll
> take you in the right direction.
>
> TJG
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>
--
Hansel
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