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copied!<p>You return <code>bytes</code> from your <code>__unicode__</code> method.</p> <p>To make it clear:</p> <pre><code>In [18]: class Test(object): def __unicode__(self): return u'äö↓'.encode('utf-8') def __str__(self): return unicode(self) ....: In [19]: class Test2(object): def __unicode__(self): return u'äö↓' def __str__(self): return unicode(self) ....: In [20]: t = Test() In [21]: t.__str__() --------------------------------------------------------------------------- UnicodeDecodeError Traceback (most recent call last) /home/dav1d/<ipython-input-21-e2650f29e6ea> in <module>() ----> 1 t.__str__() /home/dav1d/<ipython-input-18-8bc639cbc442> in __str__(self) 3 return u'äö↓'.encode('utf-8') 4 def __str__(self): ----> 5 return unicode(self) 6 UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 0: ordinal not in range(128) In [22]: unicode(t) --------------------------------------------------------------------------- UnicodeDecodeError Traceback (most recent call last) /home/dav1d/<ipython-input-22-716c041af66e> in <module>() ----> 1 unicode(t) UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 0: ordinal not in range(128) In [23]: t2 = Test2() In [24]: t2.__str__() Out[24]: u'\xe4\xf6\u2193' In [25]: str(_) # _ = last result --------------------------------------------------------------------------- UnicodeEncodeError Traceback (most recent call last) /home/dav1d/<ipython-input-25-3a1a0b74e31d> in <module>() ----> 1 str(_) # _ = last result UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-2: ordinal not in range(128)' In [26]: unicode(t2) Out[26]: u'\xe4\xf6\u2193' In [27]: class Test3(object): def __unicode__(self): return u'äö↓' def __str__(self): return unicode(self).encode('utf-8') ....: In [28]: t3 = Test3() In [29]: t3.__unicode__() Out[29]: u'\xe4\xf6\u2193' In [30]: t3.__str__() Out[30]: '\xc3\xa4\xc3\xb6\xe2\x86\x93' In [31]: print t3 äö↓ In [32]: print unicode(t3) äö↓ </code></pre> <p><code>print a</code> or in my case <code>print t</code> will call <code>t.__str__</code> which es expected to return <code>bytes</code> you let it return <code>unicode</code> so it tries to encode it with <code>ascii</code> which will not work.</p> <p>Easy fix: let <code>__unicode__</code> return unicode and <code>__str__</code> bytes.</p>

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