Неверный тег блока: "keywords_for_order", ожидаемый "endblock"

Извините, я в своем уме здесь. У меня этот код работает локально, но по какой-то причине на сервере, когда я пытаюсь запустить этот тег, я получаю сообщение об ошибке, и я понятия не имею, почему. Вот код шаблона:

{% load blog_tags keyword_tags i18n future %}

{% block blog_keywords %}
{% keywords_for_order blog.blogpost as tags %}
{% if tags %}
<h3>{% trans "Tags" %}</h3>
<ul class="unstyled tags">
{% for tag in tags %}
<li>
    <a href="{% url "blog_post_list_tag" tag.slug %}"
        class="tag-weight-1">{{ tag }}</a>
    ({{ tag.item_count }})
</li>
{% endfor %}
</ul>
{% endif %}
{% endblock %}

А вот и файл keyword_tags.py:

from django.contrib.contenttypes.models import ContentType
from django.db.models import Model, Count

from mezzanine import template
from mezzanine.conf import settings
from mezzanine.generic.fields import KeywordsField
from mezzanine.generic.models import AssignedKeyword, Keyword


register = template.Library()

@register.as_tag
def keywords_for(*args):
    """
    Return a list of ``Keyword`` objects for the given model instance
    or a model class. In the case of a model class, retrieve all
    keywords for all instances of the model and apply a ``weight``
    attribute that can be used to create a tag cloud.
    """

    # Handle a model instance.
    if isinstance(args[0], Model):
        obj = args[0]
        if hasattr(obj, "get_content_model"):
            obj = obj.get_content_model() or obj
        # There can only be one ``KeywordsField``, find it.
        for field in obj._meta.many_to_many:
            if isinstance(field, KeywordsField):
                break
        else:
            return []
        keywords_manager = getattr(obj, field.name)
        return [a.keyword for a in keywords_manager.select_related("keyword")]

    # Handle a model class.
    try:
        app_label, model = args[0].split(".", 1)
    except ValueError:
        return []

    content_type = ContentType.objects.get(app_label=app_label, model=model)
    assigned = AssignedKeyword.objects.filter(content_type=content_type)
    keywords = Keyword.objects.filter(assignments__in=assigned)
    keywords = keywords.annotate(item_count=Count("assignments"))
    if not keywords:
        return []
    settings.use_editable()
    counts = [keyword.item_count for keyword in keywords]
    min_count, max_count = min(counts), max(counts)
    sizes = settings.TAG_CLOUD_SIZES
    step = (max_count - min_count) / (sizes - 1)
    if step == 0:
        steps = [sizes / 2]
    else:
        steps = range(min_count, max_count, step)[:sizes]
    for keyword in keywords:
        c = keyword.item_count
        diff = min([(abs(s - c), (s - c)) for s in steps])[1]
        keyword.weight = steps.index(c + diff) + 1
    return keywords



@register.as_tag
def keywords_for_order(*args):


    # Handle a model instance.
    if isinstance(args[0], Model):
        obj = args[0]
        if hasattr(obj, "get_content_model"):
            obj = obj.get_content_model() or obj
        # There can only be one ``KeywordsField``, find it.
        for field in obj._meta.many_to_many:
            if isinstance(field, KeywordsField):
                break
        else:
            return []
        keywords_manager = getattr(obj, field.name)
        return [a.keyword for a in keywords_manager.select_related("keyword")]

    # Handle a model class.
    try:
        app_label, model = args[0].split(".", 1)
    except ValueError:
        return []

    content_type = ContentType.objects.get(app_label=app_label, model=model)
    assigned = AssignedKeyword.objects.filter(content_type=content_type)
    keywords = Keyword.objects.filter(assignments__in=assigned)
    keywords = keywords.annotate(item_count=Count("assignments")).order_by('-item_count')[:2]
    if not keywords:
        return []

    return keywords

Вот ошибка, которую я получаю:

Error during template rendering

In template /home/USERNAME/webapps/lion_dev/lion/roar/templates/blog/includes/tagcloud_panel.html, error at line 4
Invalid block tag: 'keywords_for_order', expected 'endblock'

1   {% load blog_tags keyword_tags i18n future %}
2   
3   {% block blog_keywords %}
4   {% keywords_for_order blog.blogpost as tags %}
5   {% if tags %}
6   <h3>{% trans "Tags" %}</h3>
7   <ul class="unstyled tags">
8   {% for tag in tags %}
9   <li>
10      <a href="{% url "blog_post_list_tag" tag.slug %}"
11          class="tag-weight-1">{{ tag }}</a>
12      ({{ tag.item_count }})
13  </li>
14  {% endfor %}

Так что да, я понятия не имею, почему этот файл тегов шаблона не виден. В нем также есть файл init.py, так что это не так. С наилучшими пожеланиями, и спасибо за любую помощь,

Джейк