title: Regular expressions and russian symbols in Django
body: <p>I have the one url like this</p>
  <p><code>url(ur'^gradebook/(?P&lt;group&gt;[\w\-А-Яа-я])$', some_view, name='some_view')</code></p>
  <p>and I expect it to process a request like</p>
  <p><code>../gradebook/group='Ф-12б'</code></p>
  <p>but I get an error and the server crashes.</p>
  <p>Please help me figure out the Russian symbols</p>