python access variable by name-as-string -inverse eval

Question

Is it possible in any way to affect an accessible variable, if the only thing given about it is its name as a string??

>>> class a_class:
        x = 1
>>> string = 'a_class.x'
>>> eval(string)
1
>>> y = inverse_eval(string)
>>> y = 2 #would imply that a_class.x = 2 from now on

John1024 · Accepted Answer · 2015-02-21 21:36:22Z

2

Here is one method:

>>> c, v = string.split('.')
>>> setattr(locals()[c], v, 2)

We can verify that it worked:

>>> a_class.x
2

answered Feb 21, 2015 at 21:36

John1024

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