[Python-ideas] Detecting circular imports ?

[Tarek Ziadé]

On Fri, Nov 19, 2010 at 12:21 AM, Michael Foord
<fuzzyman at voidspace.org.uk> wrote:
>
>
> On 18 November 2010 23:14, M.-A. Lemburg <mal at egenix.com> wrote:
>>
>> Greg Ewing wrote:
>> > Georg Brandl wrote:
>> >> But to think of
>> >> that, you already need to suspect circular imports, and then it's easy
>> >> to see it from the traceback anyway.
>> >
>> > Right. Whenever I've had a problem with circular imports, it
>> > was usually fairly obvious what the cause was.
>>
>> Same here and most cases I've had in the past actually presented
>> themselves as... ImportErrors :-)
>
>
> If you use the "from module import something" form it will be an
> ImportError. If you do "import module" and then "module.something" you will
> see an AttributeError. These are the ones that can be confusing.

Yes that's the case I was thinking of. After years of Python I can
still get trapped on those. But maybe that's just me :)


-- 
Tarek Ziadé | http://ziade.org