Connecting python to D on socket of localhost : target machine actively refuses connection

[Enjoys Math]

On Friday, 22 September 2017 at 04:25:00 UTC, Enjoys Math wrote:
> I've tried opening the port for TCP with windows 10 firewall 
> settings.  Same result.
>
> What tool would best help me debug this?  Wireshark or is that 
> too low level?


I've used Hercules: 
http://www.hw-group.com/products/hercules/index_en.html

I set up a TCP server with it, and it got the message sent from 
python.  Therefore there is something wrong with the D server.