How to access object attribute given string corresponding to name of that attribute

Question

How do you set/get the values of attributes of t given by x?

class Test:
   def __init__(self):
       self.attr1 = 1
       self.a         


        

Answer 1

Note: This answer is very outdated. It applies to Python 2 using the new module that was deprecated in 2008.

There is python built in functions setattr and getattr. Which can used to set and get the attribute of an class.

A brief example:

>>> from new import  classobj

>>> obj = classobj('Test', (object,), {'attr1': int, 'attr2': int}) # Just created a class

>>> setattr(obj, 'attr1', 10)

>>> setattr(obj, 'attr2', 20)

>>> getattr(obj, 'attr1')
10

>>> getattr(obj, 'attr2')
20