When run [eval.py] RuntimeError: unmatched '}' in format string

[linlion0311]

This problem occurs in torch\distributed\rendezvous.py

But in this code I can't find any '}' to solve the problem

I try to print (hostname, port, world_size, start_daemon, timeout), But it doesn't look like they have a problem.

Need someone to help, thanks.

[linlion0311]

system is Windows, should I train it on linux?