"django-admin.py dumpdata" - unable to serialize

[yn]

I encountered an error in

django-admin.py dumpdata

​https://docs.djangoproject.com/en/1.6/ref/django-admin/#django-admin-dumpdata

This command should print the serialized dump to stdout. And it's work fine

I need to redirect stdout to file

But

django-admin.py dumpdata > data.json

generates the error "Command error - unable to serialize"

Django 1.6.2

Python 3.3

Windows 7 home 64b

[Tim Shaffer]

Do you get any extra output if you run it with traceback?

manage.py dumpdata --traceback > data.json

[yn]

manage.py dumpdata --traceback > data.json

[yn]

Replying to timshaffer:

Do you get any extra output if you run it with traceback?

manage.py dumpdata --traceback > data.json

See the new attach.

Without > file.json it's work fine.

[Tim Graham]

I have been unable to reproduce this error, but could you try python manage.py ...?

[yn]

Replying to timo:

I have been unable to reproduce this error, but could you try python manage.py ...?

Yes, it working now

python manage.py dumpdata > data.json