Hi,
I think this is because you're trying to delete a property included
on the schema. The following should demonstrate this:
class Test(db.Expando):
first_name = db.StringProperty()
t = Test(first_name='Jim')
t.last_name = 'smith'
del t.last_name # ok
del t.first_name # boom
Robert
On Thu, Jul 28, 2011 at 23:10, J.T <[email protected]> wrote:
> Hi,
>
> from google.appengine.ext import db
> class Person(db.Expando):
> first_name = db.StringProperty()
> last_name = db.StringProperty()
> hobbies = db.StringListProperty()
>
> p = Person(first_name="Albert", last_name="Johnson")
> p.hobbies = ["chess", "travel"]
>
> del p.first_name
>
>
>
> Traceback (most recent call last):
> File
> "/base/python_runtime/python_lib/versions/1/google/appengine/ext/admin/__init__.py",
> line 247, in post
> exec(compiled_code, globals())
> File "<string>", line 6, in <module>
> File
> "/base/python_runtime/python_lib/versions/1/google/appengine/ext/db/__init__.py",
> line 1831, in __delattr__
> object.__delattr__(self, key)
> AttributeError: __delete__
>
>
> This script is from
> https://code.google.com/intl/en/appengine/docs/python/datastore/datamodeling.html#The_Expando_Class
> and test it in interactive console.
>
>
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