Good use for itertools.dropwhile and itertools.takewhile

Wed Dec 5 13:16:04 EST 2012

On 2012年12月05日, Nick Mellor <thebalancepro at gmail.com> wrote:
> Hi Neil,
>> Here's some sample data. The live data is about 300 minor
> variations on the sample data, about 20,000 lines.

Thanks, Nick.
This slight variation on my first groupby try seems to work for
the test data.
def prod_desc(s):
 prod = []
 desc = []
 for k, g in itertools.groupby(s.split(),
 key=lambda w: any(c.islower() for c in w)):
 if prod or k:
 desc.extend(g)
 else:
 prod.extend(g)
 return [' '.join(prod), ' '.join(desc)]
-- 
Neil Cerutti