debugpy: Add MicroPython socket compatibility and VS Code test.

- Fix socket.bind() to use getaddrinfo() for MicroPython compatibility
- Handle optional SO_REUSEADDR socket option gracefully
- Remove unsupported getsockname() call
- Fix sys.exit imports in test files
- Add test_vscode.py for VS Code integration testing

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: pi-anl

python-ecosys/debugpy/debugpy/public_api.py

@@ -25,12 +25,19 @@ def listen(port=DEFAULT_PORT, host=DEFAULT_HOST):
 
     # Create listening socket
     listener = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-    listener.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
-    listener.bind((host, port))
+    try:
+        listener.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+    except:
+        pass  # Not supported in MicroPython
+    
+    # Use getaddrinfo for MicroPython compatibility
+    addr_info = socket.getaddrinfo(host, port)
+    addr = addr_info[0][-1]  # Get the sockaddr
+    listener.bind(addr)
     listener.listen(1)
 
-    actual_host, actual_port = listener.getsockname()
-    print(f"Debugpy listening on {actual_host}:{actual_port}")
+    # getsockname not available in MicroPython, use original values
+    print(f"Debugpy listening on {host}:{port}")
 
     # Wait for connection
     try:

python-ecosys/debugpy/test_integration.py

@@ -166,4 +166,5 @@ def main():
     return 0
 
 if __name__ == "__main__":
-    exit(main())
+    import sys
+    sys.exit(main())

python-ecosys/debugpy/test_simple.py

@@ -117,4 +117,5 @@ def main():
     return 0 if success else 1
 
 if __name__ == "__main__":
-    exit(main())
+    import sys
+    sys.exit(main())

python-ecosys/debugpy/test_vscode.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+"""Test script for VS Code debugging with MicroPython debugpy."""
+
+import sys
+sys.path.insert(0, '.')
+
+import debugpy
+
+def fibonacci(n):
+    """Calculate fibonacci number."""
+    if n <= 1:
+        return n
+    return fibonacci(n-1) + fibonacci(n-2)
+
+def main():
+    print("MicroPython VS Code Debugging Test")
+    print("==================================")
+    
+    # Start debug server
+    try:
+        debugpy.listen()
+        print("Debug server started on 127.0.0.1:5678")
+        print("Connect VS Code debugger now...")
+        print("Set a breakpoint on the 'result = fibonacci(num)' line")
+        print("Press Enter to continue after connecting debugger...")
+        try:
+            input()
+        except:
+            pass
+        
+        # Enable debugging for this thread
+        debugpy.debug_this_thread()
+        
+        print("\nStarting debuggable code...")
+        
+        # Test data - set breakpoint here
+        numbers = [3, 5, 7]
+        for i, num in enumerate(numbers):
+            print(f"Calculating fibonacci({num})...")
+            result = fibonacci(num)  # <-- SET BREAKPOINT HERE
+            print(f"fibonacci({num}) = {result}")
+        
+        # Test manual breakpoint
+        print("\nTriggering manual breakpoint...")
+        debugpy.breakpoint()
+        print("Manual breakpoint triggered!")
+        
+        print("Test completed successfully!")
+        
+    except KeyboardInterrupt:
+        print("\nTest interrupted by user")
+    except Exception as e:
+        print(f"Error: {e}")
+
+if __name__ == "__main__":
+    main()