human
Solve the following python programming problem given the following code:
@ensure_csrf_cookie
@ensure_valid_course_key
@data_sharing_consent_required
def course_info(request, course_id):
assistant
#Here is the Python program you requested.

    """Display the course\s info.html, or 404 if there is no such course.
    Assumes the course_id is in a valid format.
    """
    def get_last_accessed_courseware(course, request, user):
        '\n                                Returns    the    courseware    module    URL    that    the    user    last    accessed,    or    None    if    it    cannot    be    found.\n                                '
        field_data_cache = FieldDataCache.cache_for_descriptor_descendents(course.id, request.user, course, depth=2)
        course_module = get_module_for_descriptor(user, request, course, field_data_cache, course.id, course=course)
        chapter_module = get_current_child(course_module)
        if (chapter_module is not None):
            section_module = get_current_child(chapter_module)
            if (section_module is not None):
                url = reverse('courseware_section', kwargs={'course_id': unicode(course.id), 'chapter': chapter_module.url_name, 'section': section_module.url_name})
                return url
        return None
    course_key = CourseKey.from_string(course_id)
    if UNIFIED_COURSE_TAB_FLAG.is_enabled(course_key):
        return redirect(reverse(course_home_url_name(course_key), args=[course_id]))
    with modulestore().bulk_operations(course_key):
        course = get_course_with_access(request.user, 'load', course_key)
        staff_access = has_access(request.user, 'staff', course)
        (masquerade, user) = setup_masquerade(request, course_key, staff_access, reset_masquerade_data=True)
        user_is_enrolled = CourseEnrollment.is_enrolled(user, course.id)
        show_enroll_banner = (request.user.is_authenticated() and (not user_is_enrolled))
        if ((not user_is_enrolled) and (not can_self_enroll_in_course(course_key))):
            return redirect(reverse('dashboard'))
        if (not user_can_skip_entrance_exam(user, course)):
            return redirect(reverse('courseware', args=[unicode(course.id)]))
        is_from_dashboard = (reverse('dashboard') in request.META.get('HTTP_REFERER', []))
        if (course.bypass_home and is_from_dashboard):
            return...