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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def events_this_week(context):
 """ Displays a week's worth of events. Starts week with Monday, unless today is Sunday. """

    request = context['request']
    home = request.site.root_page
    cal = CalendarPage.objects.live().descendant_of(home).first()
    calUrl = cal.get_url(request) if cal else None
    calName = cal.title if cal else None
    today = dt.date.today()
    beginOrd = today.toordinal()
    if today.weekday() != 6:
        # Start week with Monday, unless today is Sunday
        beginOrd -= today.weekday()
    endOrd = beginOrd + 6
    dateFrom = dt.date.fromordinal(beginOrd)
    dateTo   = dt.date.fromordinal(endOrd)
    if cal:
        events = cal._getEventsByDay(request, dateFrom, dateTo)
    else:
        events = getAllEventsByDay(request, dateFrom, dateTo)
    return {'request':      request,
            'today':        today,
            'calendarUrl':  calUrl,
            'calendarName': calName,
            'events':       events }