App Engine - AttributeError: 'function' object has no attribute 'id'

Question

I'm using App Engine, SDK 1.6.3 with Python 2.7.

I've created a model like this:

class MyModel(db.Model):
    name = db.StringProperty()
    website = db.StringProperty()

I can iterate and see everything except the Key id's. For example, in the interactive shell I can run this:

from models import *
list = MyModel.all()
for p in list:
    print(p.name)

and it prints the name of every Entity. But when I run this:

from models import *
list = MyModel.all()
for p in list:
    print(p.key.id)  [or p.key.name or p.key.app]

I get an AttributeError:

Traceback (most recent call last):
  File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/ext/admin/__init__.py", line 317, in post
    exec(compiled_code, globals())
  File "<string>", line 4, in <module>
AttributeError: 'function' object has no attribute 'id'

Can anyone please help me??

garnertb · Accepted Answer · 2012-03-22 01:34:16Z

7

key() and id() are instance methods. Try with parenthesis:

   for p in list:
        print(p.key().id())

See the documentation.

answered Mar 22, 2012 at 1:34

garnertb

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Comments

mechanical_meat · Accepted Answer · 2012-03-22 01:40:03Z

1

key() is a method and id() is also a method.
So you'd need to do:

from models import MyModel
lst = MyModel.all()
for p in lst:
    print(p.key().id())

Other notes:

Try to avoid, when possible, from [something] import *. This can cause difficult-to-debug namespace issues.
Don't shadow built-ins with variable names. E.g. list should not be used.

edited Mar 22, 2012 at 1:40

answered Mar 22, 2012 at 1:34

mechanical_meat

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