Get debug attach to work for 3.12

src/debugpy/_vendored/pydevd/pydevd_attach_to_process/add_code_to_python_process.py

@@ -308,7 +308,7 @@ def run_python_code_windows(pid, python_code, connect_debugger_tracing=False, sh
                 args = [target_executable, str(pid), target_dll_run_on_dllmain]
                 subprocess.check_call(args)
 
-                if not event.wait_for_event_set(15):
+                if not event.wait_for_event_set(30):
                     print("Timeout error: the attach may not have completed.")
                     sys.stdout.flush()
             print("--- Finished dll injection ---\n")

src/debugpy/_vendored/pydevd/pydevd_attach_to_process/common/py_utils.hpp

@@ -11,6 +11,7 @@ typedef PyThreadState* (PyInterpreterState_ThreadHead)(PyInterpreterState* inter
 typedef PyThreadState* (PyThreadState_Next)(PyThreadState *tstate);
 typedef PyThreadState* (PyThreadState_Swap)(PyThreadState *tstate);
 typedef PyThreadState* (_PyThreadState_UncheckedGet)();
+typedef PyThreadState* (_PyThreadState_GetCurrent)();
 typedef PyObject* (PyObject_CallFunctionObjArgs)(PyObject *callable, ...);    // call w/ varargs, last arg should be nullptr
 typedef PyObject* (PyInt_FromLong)(long);
 typedef PyObject* (PyErr_Occurred)();

src/debugpy/_vendored/pydevd/pydevd_attach_to_process/common/py_version.hpp

@@ -21,7 +21,9 @@ enum PythonVersion {
     PythonVersion_38 = 0x0308,
     PythonVersion_39 = 0x0309,
     PythonVersion_310 = 0x030A,
-    PythonVersion_311 = 0x030B
+    PythonVersion_311 = 0x030B,
+    PythonVersion_312 = 0x030C,
+    PythonVersion_313 = 0x030D,
 };
 
 
@@ -70,6 +72,12 @@ static PythonVersion GetPythonVersion(void *module) {
                     if(version[3] == '1'){
                         return PythonVersion_311;
                     }
+                    if(version[3] == '2'){
+                        return PythonVersion_312;
+                    }
+                    if(version[3] == '3'){
+                        return PythonVersion_313;
+                    }
                 }
                 return PythonVersion_Unknown; // we don't care about 3.1 anymore...
 

src/debugpy/_vendored/pydevd/pydevd_attach_to_process/windows/attach.cpp

@@ -41,7 +41,6 @@
 
 // Access to std::cout and std::endl
 #include <iostream>
-#include <mutex>
 // DECLDIR will perform an export for us
 #define DLL_EXPORT
 
@@ -108,9 +107,9 @@ struct InitializeThreadingInfo {
     PyImport_ImportModule* pyImportMod;
     PyEval_Lock* initThreads;
 
-    std::mutex mutex;
-    HANDLE initedEvent;  // Note: only access with mutex locked (and check if not already nullptr).
-    bool completed; // Note: only access with mutex locked
+    CRITICAL_SECTION cs;
+    HANDLE initedEvent;  // Note: only access with cs locked (and check if not already nullptr).
+    bool completed; // Note: only access with cs locked
 };
 
 
@@ -122,12 +121,12 @@ int AttachCallback(void *voidInitializeThreadingInfo) {
     initializeThreadingInfo->initThreads(); // Note: calling multiple times is ok.
     initializeThreadingInfo->pyImportMod("threading");
 
-    initializeThreadingInfo->mutex.lock();
+    EnterCriticalSection(&initializeThreadingInfo->cs);
+    initializeThreadingInfo->completed = true;
     if(initializeThreadingInfo->initedEvent != nullptr) {
         SetEvent(initializeThreadingInfo->initedEvent);
     }
-    initializeThreadingInfo->completed = true;
-    initializeThreadingInfo->mutex.unlock();
+    LeaveCriticalSection(&initializeThreadingInfo->cs);
     return 0;
 }
 
@@ -311,13 +310,19 @@ extern "C"
         // Either _PyThreadState_Current or _PyThreadState_UncheckedGet are required
         DEFINE_PROC_NO_CHECK(curPythonThread, PyThreadState**, "_PyThreadState_Current", -220);  // optional
         DEFINE_PROC_NO_CHECK(getPythonThread, _PyThreadState_UncheckedGet*, "_PyThreadState_UncheckedGet", -230);  // optional
+        DEFINE_PROC_NO_CHECK(getPythonThread13, _PyThreadState_GetCurrent*, "_PyThreadState_GetCurrent", -231);  // optional
+        if (getPythonThread == nullptr && getPythonThread13 != nullptr) {
+            std::cout << "Using Python 3.13 or later, using _PyThreadState_GetCurrent" << std::endl << std::flush;
+            getPythonThread = getPythonThread13;
+        }
 
         if (curPythonThread == nullptr && getPythonThread == nullptr) {
             // we're missing some APIs, we cannot attach.
             std::cerr << "Error, missing Python threading API!!" << std::endl << std::flush;
             return -240;
         }
 
+
         // Either _Py_CheckInterval or _PyEval_[GS]etSwitchInterval are useful, but not required
         DEFINE_PROC_NO_CHECK(intervalCheck, int*, "_Py_CheckInterval", -250);  // optional
         DEFINE_PROC_NO_CHECK(getSwitchInterval, _PyEval_GetSwitchInterval*, "_PyEval_GetSwitchInterval", -260);  // optional
@@ -368,22 +373,25 @@ extern "C"
         initializeThreadingInfo->pyImportMod = pyImportMod;
         initializeThreadingInfo->initThreads = initThreads;
         initializeThreadingInfo->initedEvent = CreateEvent(nullptr, TRUE, FALSE, nullptr);
+        InitializeCriticalSection(&initializeThreadingInfo->cs);
+
 
         // Add the call to initialize threading.
         addPendingCall(&AttachCallback, initializeThreadingInfo);
 
         ::WaitForSingleObject(initializeThreadingInfo->initedEvent, 5000);
 
         // Whether this completed or not, release the event handle as we won't use it anymore.
-        initializeThreadingInfo->mutex.lock();
+        EnterCriticalSection(&initializeThreadingInfo->cs);
         CloseHandle(initializeThreadingInfo->initedEvent);
         bool completed = initializeThreadingInfo->completed;
         initializeThreadingInfo->initedEvent = nullptr;
-        initializeThreadingInfo->mutex.unlock();
+        LeaveCriticalSection(&initializeThreadingInfo->cs);
 
         if(completed) {
             // Note that this structure will leak if addPendingCall did not complete in the timeout
             // (we can't release now because it's possible that it'll still be called).
+            DeleteCriticalSection(&initializeThreadingInfo->cs);
             delete initializeThreadingInfo;
             if (showDebugInfo) {
                 std::cout << "addPendingCall to initialize threads/import threading completed. " << std::endl << std::flush;

src/debugpy/_vendored/pydevd/pydevd_attach_to_process/windows/compile_windows.bat

@@ -7,7 +7,7 @@ setlocal
 
 @set VSWHERE=%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe
 @echo Using vswhere at %VSWHERE%
-@for /f "usebackq tokens=*" %%i in (`"%VSWHERE%" -latest -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath`) do set VSDIR=%%i
+@for /f "usebackq tokens=*" %%i in (`"%VSWHERE%" -prerelease -latest -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath`) do set VSDIR=%%i
 @echo Using Visual C++ at %VSDIR%
 
 call "%VSDIR%\VC\Auxiliary\Build\vcvarsall.bat" x86 -vcvars_spectre_libs=spectre

tests/debugpy/test_attach.py

@@ -12,7 +12,7 @@
 
 @pytest.mark.parametrize("stop_method", ["breakpoint", "pause"])
 @pytest.mark.parametrize("is_client_connected", ["is_client_connected", ""])
-@pytest.mark.parametrize("wait_for_client", ["wait_for_client", ""])
+@pytest.mark.parametrize("wait_for_client", ["wait_for_client", pytest.param("", marks=pytest.mark.skipif(sys.platform.startswith("darwin"), reason="Flakey test on Mac"))])
 def test_attach_api(pyfile, wait_for_client, is_client_connected, stop_method):
     @pyfile
     def code_to_debug():