[SOLVED] Django Compressor does not minify files

Django Compressor does not minify files

I am trying to let django-compressor working with mezzanine. For first attempt I simply installed django compressor (as should be done for Mezzanine) and changed DEBUG = False but nothing changed in HTML generated from Django. So I followed the docs of django compressor and I modified my settings.py:

STATICFILES_FINDERS = (
"django.contrib.staticfiles.finders.FileSystemFinder",
#"django.contrib.staticfiles.finders.AppDirectoriesFinder",
#'django.contrib.staticfiles.finders.DefaultStorageFinder',
"compressor.finders.CompressorFinder",
)

INSTALLED_APPS = (
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.redirects",
    "django.contrib.sessions",
    "django.contrib.sites",
    "django.contrib.sitemaps",
    "django.contrib.staticfiles",
    "mezzanine.boot",
    "mezzanine.conf",
    "mezzanine.core",
    "mezzanine.generic",
    "mezzanine.blog",
    "mezzanine.forms",
    "mezzanine.pages",
    "mezzanine.galleries",
    "mezzanine.twitter",
    #"mezzanine.accounts",
    #"mezzanine.mobile",
    #'debug_toolbar',
    "compressor",
)

OPTIONAL_APPS = (
    #"debug_toolbar",
    "django_extensions",
    #"compressor", I commented it to follow the django-compressor doc
    PACKAGE_NAME_FILEBROWSER,
    PACKAGE_NAME_GRAPPELLI,
)

COMPRESS_ENABLED = True
COMPRESS_ROOT = STATIC_ROOT

These are the packages installed in my environment:

Django==1.6.5
Mezzanine==3.1.5
Pillow==2.5.1
bleach==1.4
distribute==0.6.24
django-appconf==0.6
django-compressor==1.4
filebrowser-safe==0.3.5
future==0.9.0
grappelli-safe==0.3.12
html5lib==1.0b3
oauthlib==0.6.3
pytz==2014.4
requests==2.3.0
requests-oauthlib==0.4.1
six==1.7.3
tzlocal==1.0

Here, how I used compressor in templates:

{% load pages_tags mezzanine_tags i18n future staticfiles compress %}
{% compress css %}
<link rel="stylesheet" href="{% static "css/custom/mycss.css" %}">
{% endcompress %}

and nothing happened until I launched:

python manage.py compress --force

So now I have the cache populated and the HTML generated from Django points to the files in CACHE like:

<link rel="stylesheet" href="/static/CACHE/css/16e8b98f5bd3.css" type="text/css" media="screen">

but the files are not minified, django compressor simply copied them and changed the name. Do you know why the compressor not minify them?

Solution

The problem was the memchached, disabling it, Django showed problems of permissions and to minify the css I had to select a filter like compressor.filters.cssmin.CSSMinFilter