assign multiple instances of a class to variables
Python. I need to assign multiple class instances to number of variables. First i tried this:
a = b = c = []
but they all refer to the same object, which is not what I need.开发者_如何学运维 This works better:
(a, b, c) = [[] for i in range(3)]
but it seems a bit too verbose. Is there a shorter way to do this?
UPDATE: OK, so this is not really Pythonic to cram everything into one line, question resolved.
But if this worked it'd be really cool:
a,b,c = []*3
And this line creates three references to the same object:
a,b,c = [[]] * 3
Oh well...
a, b, c = [], [], []
simply:
a = []
b = []
c = []
(python is not perl, there is no need for one-liners)
a = []
b = a[:]
import copy
c = copy.copy(b)
You could use these if you want them all initialized to something other than []
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