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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_user_ip(request):
 """Return user ip :param request: Django request object :return: user ip """

    ip = get_real_ip(request)
    if ip is None:
        ip = get_ip(request)
        if ip is None:
            ip = '127.0.0.1'
    return ip