Django calendar error

[hito koto]

I hava also have some error , 
Why ? i did import calendar!


ViewDoesNotExist at /admin/auth/user/ 

Could not import tcsarticle.views.calendar. View is not callable.

 Request Method: GET  Request URL: http://admin/auth/user/  Django Version: 
1.6.2  Exception Type: ViewDoesNotExist  Exception Value: 

Could not importrticle.views.calendar. View is not callable.

 Exception Location: 
/usr/lib/python2.6/site-packages/django/core/urlresolvers.py 
in get_callable, line 112  Python Executable: /usr/bin/python
TypeError at /articles/month 

month() takes at least 3 arguments (1 given)

 Request Method: GET  Request URL: http://articles/month  Django Version: 
1.6.2  Exception Type: TypeError  Exception Value: 

month() takes at least 3 arguments (1 given)

 Exception Location: 
/usr/lib/python2.6/site-packages/django/core/handlers/base.py 
in get_response, line 114  Python Executable: /usr/bin/python  Python 
Version: 2.6.

This is my Views.py:

from datetime import date, datetime, timedelta
import calendar

def month(request, year, month, change=None):
    year, month = int(year), int(month)
    if change in ("next", "prev"):
        now, mdelta = date(year, month, 15), timedelta(days=31)
        if change == "next":   mod = mdelta
        elif change == "prev": mod = -mdelta

        year, month = (now+mod).timetuple()[:2]

    cal = calendar.Calendar()
    month_days = cal.itermonthdays(year, month)
    nyear, nmonth, nday = time.localtime()[:3]
    lst = [[]]
    week = 0

    for day in month_days:
        entries = current = False   # are there entries for this day; 
current day?
        if day:
            entries = User.objects.filter(date__year=year, 
date__month=month, date__day=day)
            if day == nday and year == nyear and month == nmonth:
                current = True

        lst[week].append((day, entries, current))
        if len(lst[week]) == 7:
            lst.append([])
            week += 1

    return render_to_response("month.html", dict(year=year, month=month, 
user=request.user,
                        month_days=lst, mname=mnames[month-1]))

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