What is this 'u' in my list?

[Klaus Alexander Seistrup]

Antun Karlovac wrote:

> [u'name', u'size', u'expression', u'number', u'reference', u'string', u'color']
> 
> What is the u before the string?

#v+

>>> x = [u'name', u'size', u'expression', u'number', u'reference', u'string', u'color']
>>> type(x[0])
<type 'unicode'>
>>> 

#v-


  // Klaus

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