ods

from sqlalchemy.orm.query import Query
from sqlalchemy.sql import ClauseElement
from sqlalchemy import cast, Boolean


class PublicQuery(Query):

    '''
    Filters all queries by publicity condition for each participating mapped
    class. Attribute "public" of mapped class (if present) should be either

riffm

# -*- coding: utf-8 -*-

from sqlalchemy import create_engine
from sqlalchemy.types import SchemaType
from sqlalchemy.engine import reflection
from sqlalchemy.schema import (
    MetaData,
    Table,
    DropTable,
    ForeignKeyConstraint,

daevaorn

from itertools import izip


def chunkify(iterable, chunk_size):
    r"""
    >>> chunkify(range(1, 11), 2)
    [(1, 2), (3, 4), (5, 6), (7, 8), (9, 10)]
    """
    _iterable = iter(iterable)
    return izip(*[_iterable] * chunk_size)