Return attribute of object, given string name of the attribute

Question

Is something like this possible?

class MyObject(object):
    attr = 1

def fetch(ob, attr)
    return ob.attr

mo = MyObject()
print fetch(mo, 'attr') #any way to do this?
#expected 1

The reason I ask is because I do know the name of attribute I will be calling, and the object has quite a few attributes and so I could do a massive if/elif block, but that would be ugly and harder to maintain.

one of the way to store variables in dictionary – Andrii Abramov Oct 04 '16 at 15:00 — Andrii Abramov, Oct 04 '16 at 15:00

Maxim Egorushkin · Answer 1 · 2016-10-04T15:03:20.593

3

It is possible, this is what getattr function does.

def fetch(ob, attr)
    return getattr(ob, attr)

Obviously, you can just use getattr directly.

edited Oct 04 '16 at 15:03

answered Oct 04 '16 at 15:01

Maxim Egorushkin

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Of course, reimplementing `getattr` as `fetch` is rather superfluous… – deceze Oct 04 '16 at 15:02
1

Of course I'm not going to re-implement it, I will just use `getattr` =). The point was to show an easy to understand example @deceze. – emihir0 Oct 04 '16 at 15:05

Return attribute of object, given string name of the attribute

1 Answers1