我该如何解决这个mitmproxys SyntaxError？

i´m in the process to install mitmproxy on a Amazon AWS EC2 Server, but i´ve i write mitmproxy into the terminal i get the following exception. By Google i haven´t found anythin :( i hope someone here can help me. (Maybe i´ve posted a little bit to lot of information if so i´m sorry :'[ )i´m in the process to install mitmproxy on a Am