Python Class Attribute Use

Question

I would like to print(use) some attributes of an object instance in the following way. But the code generates an error: AttributeError: 'Obj' object has no attribute 'alphabet'

class Obj(object):
    def __init__(self):
        self.a = 0
        self.b = 1

Obj_instance = Obj()

l = ['a', 'b']

for alphabet in l:
    print Obj_instance.alphabet

Use getattr: https://stackoverflow.com/questions/4075190/what-is-getattr-exactly-and-how-do-i-use-it#4076099 — fredtantini, Dec 04 '17 at 13:51
The accepted answer in the duplicate is pretty poor, IMO. Be sure to read the (currently) [highest-voted answer](https://stackoverflow.com/a/4076099/1126841) instead. — chepner, Dec 04 '17 at 14:00
Use `getattr` to get a method by a string value, `getattr(Obj_instance, alphabet)` — Manjunath, Dec 04 '17 at 14:32

score 1 · Accepted Answer · answered Dec 04 '17 at 13:59

1

As @fredtantini said use getattr. Here's an example -

class Obj(object):
def __init__(self):
    self.a = 0
    self.b = 1

Obj_instance = Obj()

l = ['a', 'b']

for alphabet in l:
    print getattr(Obj_instance, alphabet)

answered Dec 04 '17 at 13:59

RoachLord

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Python Class Attribute Use

1 Answers1