From e59195d6a452ae2a3e75dd79ce0afc5cd2dbffbe Mon Sep 17 00:00:00 2001
From: Pavel Minaev <me@int19h.org>
Date: Tue, 10 Aug 2021 13:01:27 -0700
Subject: [PATCH] Fix #579: "Cannot assign requested address" error is not
 being propagated to VS Code

---
 src/debugpy/adapter/clients.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/debugpy/adapter/clients.py b/src/debugpy/adapter/clients.py
index c703c610..fd788d2b 100644
--- a/src/debugpy/adapter/clients.py
+++ b/src/debugpy/adapter/clients.py
@@ -382,7 +382,15 @@ class Client(components.Component):
         launcher_path = request("debugLauncherPath", os.path.dirname(launcher.__file__))
         adapter_host = request("debugAdapterHost", "127.0.0.1")
 
-        servers.serve(adapter_host)
+        try:
+            servers.serve(adapter_host)
+        except Exception as exc:
+            raise request.cant_handle(
+                "{0} couldn't create listener socket for servers: {1}",
+                self.session,
+                exc,
+            )
+
         launchers.spawn_debuggee(
             self.session,
             request,