For loop and list - syntax

Question

I've got some problem with syntax in python.

Below is a simple example:

Instead that (1):

value = [] value.append(int(self.val1.GetValue())) value.append(int(self.val2.GetValue())) value.append(int(self.val3.GetValue())) value.append(int(self.val4.GetValue()))

I want do sth like that (2):

value = [] for i in range(4): value.append(int(self.val + (i + 1) + .GetValue()))

But as you see it's an invalid syntax.

The question is what I must correct in above loop to obtain the same resault like in (1)

sounds like a bad design. why don't you store the values in self as a list? — Karoly Horvath
– Karoly Horvath, Commented Mar 31, 2014 at 8:14

glglgl · Accepted Answer · 2014-03-31 08:29:08Z

value = [int(v.GetValue()) for v in (self.val1, self.val2, self.val3, self.val4)]

would probably be the cleanest way.

Even shorter would be to use something with getattr(self, 'val%d' % i).GetValue(), but that's quite ugly.

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