TypeError

[coded kid]

Hi guys, I want this code to display list of friends of a user, list
of friends to add, after writing the codes and testing it out, I’m
getting this error:

TypeError at /userpage/
user_page() takes exactly 2 arguments (1 given)
Request Method: GET
Request URL:    http://127.0.0.1:8000/userpage/
Django Version: 1.3.1
Exception Type: TypeError
Exception Value:        user_page() takes exactly 2 arguments (1 given)
Exception Location:     C:\Python27\lib\site-packages\django\core\handlers
\base.py in get_response, line 111
Python Executable:      C:\Python27\python.exe
Python Version: 2.7.2

Below are my codes:

Views:

def user_page(request, username):
    user=get_object_or_404(User, username=username)
    if request.user.is_authenticated():
        is_friend=Friendship.objects.filter(
            from_friend=request.user,
            to_friend=user
            )
    else:
        is_friend=False
    return render_to_response('user_page.html',
context_instance=RequestContext(request))

Template:

{% extends "base.html" %}

{% block content %}
  {% ifequal user.username username %}
    <a href="/friends/{{ username }}/">view your friends</a>
  {% else %}
    {% if is_friend %}
      <a href="/friends/{{ user.username }}/">
        {{ username }} is a friend of yours</a>
    {% else %}
      <a href="/friend/add/?username={{ username }}">
        add {{ username }} to your friends</a>
    {% endif %}
    - <a href="/friends/{{ username }}/">
        view {{username }}'s friends</a>
  {% endifequal %}
  {% endblock %}
Please help me out!

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