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django-form-utils / form_utils / settings.py

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import posixpath

from django.conf import settings

JQUERY_URL = getattr(
    settings, 'JQUERY_URL',
    'http://ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js')

if not ((':' in JQUERY_URL) or (JQUERY_URL.startswith('/'))):
    JQUERY_URL = posixpath.join(settings.STATIC_URL, JQUERY_URL)