Python 3.3.2 (default, Sep 16 2013, 16:19:35)
[GCC 4.4.6 20120305 (Red Hat 4.4.6-4)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import ujson
>>> ujson.encode('\ud83d\ude80')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'utf-8' codec can't encode character '\ud83d' in position 0: surrogates not allowed
>>> ujson.__version__
'1.34'