def __init__(self, iterable, order, func):
'''Create an OrderedIterable.
Args:
iterable: The iterable sequence to be ordered.
order: +1 for ascending, -1 for descending.
func: The function to select the sorting key.
'''
if not is_iterable(iterable):
raise TypeError("Cannot construct OrderedQuery from non-iterable {0}".format(str(type(iterable))[7: -2]))
Util.assert_type(order, int)
if not is_callable(func):
raise TypeError('func is not callable')
assert abs(order) == 1, 'order argument must be +1 or -1'
super(OrderedQuery, self).__init__(iterable)
self.funcs = [(order, func)]
def __init__(self, iterable, order, func):
'''Create an OrderedIterable.
Args:
iterable: The iterable sequence to be ordered.
order: +1 for ascending, -1 for descending.
func: The function to select the sorting key.
'''
if not is_iterable(iterable):
raise TypeError(
"Cannot construct OrderedQuery from non-iterable {0}".format(
str(type(iterable))[7:-2]))
Util.assert_type(order, int)
if not is_callable(func):
raise TypeError('func is not callable')
assert abs(order) == 1, 'order argument must be +1 or -1'
super(OrderedQuery, self).__init__(iterable)
self.funcs = [(order, func)]
def take(self, n):
Util.assert_type(n, (int, long))
n = max(0, n)
return Query(self, func=lambda: itertools.islice(self, n))
def take(self, n):
Util.assert_type(n, (int, long))
n = max(0, n)
return Query(self, func=lambda: itertools.islice(self, n))