Template class from base.py in Django

template-base.py

class Template(object):
    def __init__(self, template_string, origin=None, name=None):
        try:
            template_string = force_text(template_string)
        except UnicodeDecodeError:
            raise TemplateEncodingError("Templates can only be constructed "
                                        "from unicode or UTF-8 strings.")
        if settings.TEMPLATE_DEBUG and origin is None:
            origin = StringOrigin(template_string)
        self.nodelist = compile_string(template_string, origin)
        self.name = name
        self.origin = origin


    # the rest is left out for conciseness.