auth.py 文件源码

def query_string(self, http_request):
        parameter_names = sorted(http_request.params.keys())
        pairs = []
        for pname in parameter_names:
            pval = boto.utils.get_utf8_value(http_request.params[pname])
            pairs.append(urllib.parse.quote(pname, safe='') + '=' +
                         urllib.parse.quote(pval, safe='-_~'))
        return '&'.join(pairs)