runtime.py 文件源码

def _render(template, callable_, args, data, as_unicode=False):
    """create a Context and return the string
    output of the given template and template callable."""

    if as_unicode:
        buf = util.FastEncodingBuffer(as_unicode=True)
    elif template.bytestring_passthrough:
        buf = compat.StringIO()
    else:
        buf = util.FastEncodingBuffer(
            as_unicode=as_unicode,
            encoding=template.output_encoding,
            errors=template.encoding_errors)
    context = Context(buf, **data)
    context._outputting_as_unicode = as_unicode
    context._set_with_template(template)

    _render_context(template, callable_, context, *args,
                    **_kwargs_for_callable(callable_, data))
    return context._pop_buffer().getvalue()