title: How to use slugify in Python 3?
body: <p>I'm trying to use <a href="https://github.com/un33k/python-slugify" rel="noreferrer">slugify</a>, which I installed using <code>pip3 install slugify</code>. However, in the interpreter, if I try to slugify the string <code>'hello'</code> I see the following:</p>
  
  <pre><code>Python 3.5.2 (default, Nov 17 2016, 17:05:23) 
  Type "copyright", "credits" or "license" for more information.
  
  IPython 5.1.0 -- An enhanced Interactive Python.
  ?         -&gt; Introduction and overview of IPython's features.
  %quickref -&gt; Quick reference.
  help      -&gt; Python's own help system.
  object?   -&gt; Details about 'object', use 'object??' for extra details.
  
  In [1]: from slugify import slugify
  
  In [2]: slugify('hello')
  ---------------------------------------------------------------------------
  NameError                                 Traceback (most recent call last)
  &lt;ipython-input-2-a58110f37579&gt; in &lt;module&gt;()
  ----&gt; 1 slugify('hello')
  
  /usr/local/lib/python3.5/dist-packages/slugify.py in slugify(string)
       22 
       23     return re.sub(r'[-\s]+', '-',
  ---&gt; 24             unicode(
       25                 re.sub(r'[^\w\s-]', '',
       26                     unicodedata.normalize('NFKD', string)
  
  NameError: name 'unicode' is not defined
  
  In [3]: slugify(u'hello')
  ---------------------------------------------------------------------------
  NameError                                 Traceback (most recent call last)
  &lt;ipython-input-3-acc9f7b8d41e&gt; in &lt;module&gt;()
  ----&gt; 1 slugify(u'hello')
  
  /usr/local/lib/python3.5/dist-packages/slugify.py in slugify(string)
       22 
       23     return re.sub(r'[-\s]+', '-',
  ---&gt; 24             unicode(
       25                 re.sub(r'[^\w\s-]', '',
       26                     unicodedata.normalize('NFKD', string)
  
  NameError: name 'unicode' is not defined
  </code></pre>
  
  <p>By contrast, in Python 2 the latter does work:</p>
  
  <pre><code>Python 2.7.12 (default, Nov 19 2016, 06:48:10) 
  Type "copyright", "credits" or "license" for more information.
  
  IPython 2.4.1 -- An enhanced Interactive Python.
  ?         -&gt; Introduction and overview of IPython's features.
  %quickref -&gt; Quick reference.
  help      -&gt; Python's own help system.
  object?   -&gt; Details about 'object', use 'object??' for extra details.
  
  In [1]: from slugify import slugify
  
  In [2]: slugify(u'hello')
  Out[2]: u'hello'
  </code></pre>
  
  <p>How can I get this to work in Python 3?</p>