$ pip install proxy.py

$ proxy.py -h
usage: proxy.py [-h] [--hostname HOSTNAME] [--port PORT] [--backlog BACKLOG]
                [--basic-auth BASIC_AUTH]
                [--server-recvbuf-size SERVER_RECVBUF_SIZE]
                [--client-recvbuf-size CLIENT_RECVBUF_SIZE]
                [--log-level LOG_LEVEL]

proxy.py v0.3

optional arguments:
  -h, --help            show this help message and exit
  --hostname HOSTNAME   Default: 127.0.0.1
  --port PORT           Default: 8899
  --backlog BACKLOG     Default: 100. Maximum number of pending connections to
                        proxy server
  --basic-auth BASIC_AUTH
                        Default: No authentication. Specify colon separated
                        user:password to enable basic authentication.
  --server-recvbuf-size SERVER_RECVBUF_SIZE
                        Default: 8 KB. Maximum amount of data received from
                        the server in a single recv() operation. Bump this
                        value for faster downloads at the expense of increased
                        RAM.
  --client-recvbuf-size CLIENT_RECVBUF_SIZE
                        Default: 8 KB. Maximum amount of data received from
                        the client in a single recv() operation. Bump this
                        value for faster uploads at the expense of increased
                        RAM.
  --log-level LOG_LEVEL
                        DEBUG, INFO (default), WARNING, ERROR, CRITICAL

Having difficulty using proxy.py? Report at:
https://github.com/abhinavsingh/proxy.py/issues/new