How do I set a property in python using its string name

Question

Possible Duplicate:
How do you programmatically set an attribute in Python?

Hey, here's a dumb question: how can I set an object property given its name in a string. I have a dictionary being passed to me and I wish to transfer its values into namesake properties using code like this:

    for entry in src_dict:
          if entry.startswith('can_'):
              tgt_obj[entry] = src_dict_profile[entry]

I'm still a bit of a noob with Python so would appreciate some help. - dave.

Duplicate: http://stackoverflow.com/questions/285061/how-do-you-programmatically-set-an-attribute-in-python — S.Lott, Jun 16 '10 at 14:18

score 22 · Accepted Answer · edited Aug 22 '20 at 20:22

22

setattr(some_object, 'some_attribute', 42)

edited Aug 22 '20 at 20:22

vidstige

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answered Jun 16 '10 at 13:39

Deniz Dogan

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5

Please, no semicolons. :-D – smitelli Feb 16 '18 at 18:59
2

This doesn't use the @property.setter function though does it... how would you set the property through that? – jscul Jan 18 '19 at 00:07

Hank Gay · Answer 2 · 2010-06-16T13:54:40.093

7

Sounds like you're looking for setattr.

Example:

for entry in src_dict:
      if entry.startswith('can_'):
          setattr(tgt_obj, entry, src_dict_profile[entry])

edited Jun 16 '10 at 13:54

answered Jun 16 '10 at 13:37

Hank Gay

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score 1 · Answer 3 · answered Jun 16 '10 at 23:07

1

On objects that have "dict" property

if "__dict__" in dir(obj):

you may do fun things like:

obj.__dict__.update(src_dict)

answered Jun 16 '10 at 23:07

ddotsenko

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How do I set a property in python using its string name

3 Answers3