Why __unicode__ doesn't work but __str__ does?

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心在旅途
心在旅途 2021-02-13 19:05

I\'m trying to break some rock by developing a website on my own, and I\'m starting by creating some registry pages and listing database records.

I\'m getting bugged wit

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  • 2021-02-13 19:41

    If it's not the python 3 thing, your code as posted has incorrect indentation - not sure if copy/pasting bug or if that's how it is in the code. But your User model's methods need to be indented, like so:

    from django.db import models
    
    class User(models.Model):
        username = models.CharField(max_length=200)
        reg_date = models.DateTimeField('registry date')
    
        def __unicode__(self):
            return self.username
    
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  • 2021-02-13 19:59

    it looks like you are using Python3.x and here is the relevant documentation on Str and Unicode methods

    In Python 2, the object model specifies __str__() and __unicode__() methods. If these methods exist, they must return str (bytes) and unicode (text) respectively.

    The print statement and the str() built-in call __str__() to determine the human-readable representation of an object. The unicode() built-in calls __unicode__() if it exists, and otherwise falls back to __str__() and decodes the result with the system encoding. Conversely, the Model base class automatically derives __str__() from __unicode__() by encoding to UTF-8.

    In Python 3, there’s simply __str__(), which must return str (text).

    So

    On Python 3, the decorator is a no-op. On Python 2, it defines appropriate __unicode__() and __str__() methods (replacing the original __str__() method in the process).

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