feat: Add dynamic skip rules for kernel modules to debugpy configuration.

Author: arjxn-py

ipykernel/debugger.py

@@ -326,7 +326,7 @@ class Debugger:
     ]
 
     def __init__(
-        self, log, debugpy_stream, event_callback, shell_socket, session, just_my_code=True
+        self, log, debugpy_stream, event_callback, shell_socket, session, kernel_modules, just_my_code=True
     ):
         """Initialize the debugger."""
         self.log = log
@@ -335,6 +335,7 @@ def __init__(
         self.session = session
         self.is_started = False
         self.event_callback = event_callback
+        self.kernel_modules = kernel_modules
         self.just_my_code = just_my_code
         self.stopped_queue: Queue[t.Any] = Queue()
 
@@ -574,6 +575,11 @@ async def attach(self, message):
         # Set debugOptions for breakpoints in python standard library source.
         if not self.just_my_code:
             message["arguments"]["debugOptions"] = ["DebugStdLib"]
+
+        # Dynamic skip rules (computed at kernel startup)
+        rules = [{"path": path, "include": False} for path in self.kernel_modules]
+        message["arguments"]["rules"] = rules
+
         return await self._forward_message(message)
 
     async def configurationDone(self, message):

ipykernel/ipkernel.py

@@ -119,6 +119,12 @@ def __init__(self, **kwargs):
 
         from .debugger import _is_debugpy_available
 
+        self._kernel_modules = [
+            m.__file__
+            for m in sys.modules.values()
+            if hasattr(m, "__file__") and m.__file__
+        ]
+
         # Initialize the Debugger
         if _is_debugpy_available:
             self.debugger = self.debugger_class(
@@ -127,6 +133,7 @@ def __init__(self, **kwargs):
                 self._publish_debug_event,
                 self.debug_shell_socket,
                 self.session,
+                self._kernel_modules,
                 self.debug_just_my_code,
             )