This took me a while to figure out:
Let’s define a normal string which should be evaluated as unicode later
s=’at\u0026t’
string to unicode convert function doesn’t help in this case:
>>> unicode(s)
u’at\\u0026t’
Instead we need to decode string with unicode-escape encoding:
>>> s=’at\u0026t’
>>> type(s)

>>> s.decode( ‘unicode-escape’ )
u’at&t’

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