将os.urandom变量存储到Django中的Sqlite数据库中

Question

I'm trying to store random variable to Sqlite database in Django, but I get this error:

You must not use 8-bit bytestrings unless you use a text_factory that can interpret 8-bit bytestrings (like text_factory = str). It is highly recommended that you instead just switch your application to Unicode strings.

Here is my code:

random_number = os.urandom(16)
SomeModel.objects.filter(id=2).update(number=random_number)

Models.py:

class SomeModel(models.Model):
    random = models.CharField(max_length=32)

I use Python 2.7.10 and Django 1.9.

Answer 1

If still possible, you could alter your model to use BinaryField :

class SomeModel(models.Model):
    random = models.BinaryField(max_length=32)

If on the other hand the model is already set in stone, consider some binary to text encoding, like base64:

from base64 import b64encode

random_number = os.urandom(16)
SomeModel.objects.filter(id=2).update(number=b64encode(random_number))