FWIW:

1st shell:
$ ./python.exe -m test test_ssl -u all -m test_get_server_certificate -F
$ ps
[...]
 1271 ttys004    0:01.00 ./python.exe -m test test_ssl -u all -m test_get_server_certificate -F

2nd shell:
$ sudo errinfo -p 1271

The syscall trace shows that errno 41 is returned by write():
      python.exe            write   41  Protocol wrong type for socket 
      python.exe            ioctl   25  Inappropriate ioctl for device 
      python.exe            ioctl   25  Inappropriate ioctl for device 
      python.exe            ioctl   25  Inappropriate ioctl for device 
      python.exe            ioctl   25  Inappropriate ioctl for device 
      python.exe          connect   61  Connection refused 
      python.exe          connect   61  Connection refused 
      python.exe            ioctl   25  Inappropriate ioctl for device 
      python.exe            ioctl   25  Inappropriate ioctl for device 
      python.exe            ioctl   25  Inappropriate ioctl for device 
      python.exe            ioctl   25  Inappropriate ioctl for device 
      python.exe           stat64    2  No such file or directory