def concatenate_request_elements(method, url, query):
    '9.1.3.  Concatenate Request Elements'
    return '&'.join(map(_quote, [str(method).upper(), url, query]))
9.1.3.  Concatenate Request Elements
def concatenate_request_elements(method, url, query):
    
    return '&'.join(map(_quote, [str(method).upper(), url, query]))