Handle invalid socket options. Fixes microsoft#491

src/debugpy/_vendored/pydevd/_pydevd_bundle/pydevd_comm.py

@@ -441,18 +441,20 @@ def start_client(host, port):
  # then sends a keepalive ping once every 3 seconds (TCP_KEEPINTVL),
  # and closes the connection after 5 failed ping (TCP_KEEPCNT), or 15 seconds
  try:
- IPPROTO_TCP, SO_KEEPALIVE, TCP_KEEPIDLE, TCP_KEEPINTVL, TCP_KEEPCNT = (
- socket_module.IPPROTO_TCP,
- socket_module.SO_KEEPALIVE,
- socket_module.TCP_KEEPIDLE,
- socket_module.TCP_KEEPINTVL,
- socket_module.TCP_KEEPCNT,
- )
- s.setsockopt(SOL_SOCKET, SO_KEEPALIVE, 1)
- s.setsockopt(IPPROTO_TCP, TCP_KEEPIDLE, 1)
- s.setsockopt(IPPROTO_TCP, TCP_KEEPINTVL, 3)
- s.setsockopt(IPPROTO_TCP, TCP_KEEPCNT, 5)
- except AttributeError:
+ s.setsockopt(SOL_SOCKET, socket_module.SO_KEEPALIVE, 1)
+ except (AttributeError, OSError):
+ pass # May not be available everywhere.
+ try :
+ s.setsockopt(socket_module.IPPROTO_TCP, socket_module.TCP_KEEPIDLE, 1)
+ except (AttributeError, OSError):
+ pass # May not be available everywhere.
+ try:
+ s.setsockopt(socket_module.IPPROTO_TCP, socket_module.TCP_KEEPINTVL, 3)
+ except (AttributeError, OSError):
+ pass # May not be available everywhere.
+ try:
+ s.setsockopt(socket_module.IPPROTO_TCP, socket_module.TCP_KEEPCNT, 5)
+ except (AttributeError, OSError):
  pass # May not be available everywhere.
 
  try: