[mezzanine-users] Problems adding a Decimal Field to EXTRA_MODEL_FILES

[Rodrigo Gadea]

Hi People!

I'm having problems adding a Decimal Field:

    (
        "cartridge.shop.models.Product.package_weight",
        "DecimalField",
        (_("Package Weight (kg)"),),
        {"max_digits": "7", "decimal_places": "3",
         "blank": True, "null": True},
    ),

and when I run "makemigrations" I got this trace:

- http://dpaste.com/27N44Y7
...
  File 
"/home/rodrigo/.virtualenvs/dartel/lib/python2.7/site-packages/django/forms/fields.py",
 
line 402, in widget_attrs
    step = str(Decimal('1') / 10 ** self.decimal_places).lower()
TypeError: Error when calling the metaclass bases
    unsupported operand type(s) for ** or pow(): 'int' and 'unicode'

Can anyone give me a hint about how to fix it?

Thanks a lot,
Rodrigo

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