[Fixed]-Coercing to Unicode: need string or buffer, NoneType found everything seems fine and still getting this error

i already got the answer…..but thnx for ur rply

def __str__(self):
    return str(self.id)

def __unicode__(self):
    return unicode(self.id)

First of all you don’t have to implement both methods. If you’re using python 2 then use __unicode__. If you’re using python 3 use __str__.

So, using python 2 do this:

def __unicode__(self):
    return '{}'.format(self.id)

For python 3 do this:

def __str__(self):
    return '{}'.format(self.id)