pip install gfwlist2pac

usage: gfwlist2pac [-h] -i GFWLIST -f PAC -p PROXY

optional arguments:
  -h, --help            show this help message and exit
  -i GFWLIST, --input GFWLIST
                        path to gfwlist
  -f PAC, --file PAC    path to output pac
  -p PROXY, --proxy PROXY
                        the proxy parameter in the pac file, for example,
                        "SOCKS5 127.0.0.1:1080;"