I am trying to create an array of object. I am able to do it like this:
def MyClass(object):
def __init__(self, number=0):
self.number=number
my_objects = []
for i in range(100) :
my_objects.append(MyClass(0))
I want, however, to create the array without the loop (because I think for a more complex object the appending can be very time consuming). Is there a way to achieve this?
You could always use a list comprehension:
my_objects = [MyClass(0) for _ in range(100)]
If you are using Python 2.x, you should also replace range with xrange:
my_objects = [MyClass(0) for _ in xrange(100)]
This is because the latter computes numbers lazily where as the former creates an unnecessary list.
range since range generates a list of items?
range is a separate thing from the list of objects produced by the comprehension.range could be taken advantage of once ;)my_objects = [MyClass(0) for i in range(100)]
or using repeat
from itertools import repeat
my_objects = map(MyClass, repeat(0, 100))
