Jonathan Livni <jonathan.li...@gmail.com> added the comment:
The script I used is a single file single threaded code - but - It uses
django's ORM to get the data from a MySQL database.
I've reduced the code path to this:
import sys,os
sys.path.append(os.path.dirname(os.getcwdu()))
os.environ['DJANGO_SETTINGS_MODULE']='my_app.settings'
from django.core.management import setup_environ
from my_app import settings
setup_environ(settings)
from my_app.convert.models import SomeModel
from operator import itemgetter
from decimal import Decimal
def non_decreasing(L):
return all(x<=y for x, y in zip(L, L[1:]))
raw_data =
SomeModel.objects.filter(the_date=the_date,col1__gt=Decimal('0.2'),col2__gt=Decimal('0.2'),col3__gt=0,col4__gt=0,col5__gte=2).order_by('col6','col7','col8').values_list('col6','col7','col8','col1','col3','col2','col4')
data=defaultdict(list)
for d in raw_data:
data[d[0],d[1]].append(d[2:])
for (exp,t),d in data.iteritems():
col8s = map(itemgetter(0),d)
mids = [(x[3]+x[4])/Decimal('2.0') for x in d]
if not non_decreasing(mids):
raise Exception
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue11221>
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