PY-37212 Show traceback when terminating on uncaught exception

GitOrigin-RevId: 0c2772e0449a5ff5be06d1b0398e70abeae56dfd

python/helpers/pydev/pydevd.py

@@ -1189,6 +1189,13 @@ class PyDB(object):
         pydev_log.debug("We are stopping in post-mortem\n")
         thread_id = get_thread_id(thread)
         pydevd_vars.add_additional_frame_by_id(thread_id, frames_byid)
+        exctype, value, tb = arg
+        while tb:
+            if self.is_top_level_trace_in_project_scope(tb):
+                break
+            tb = tb.tb_next
+        sys.__excepthook__(exctype, value, tb)
+        sys.excepthook = lambda type, value, traceback: None  # Avoid printing the exception for the second time.
         try:
             try:
                 add_exception_to_frame(frame, arg)

python/testSrc/com/jetbrains/env/python/PythonDebuggerTest.java

@@ -456,6 +456,10 @@ public class PythonDebuggerTest extends PyEnvTestCase {
       public void testing() throws Exception {
         waitForPause();
         waitForOutput("message=\"python-exceptions.ZeroDivisionError\"", "message=\"python-builtins.ZeroDivisionError\"");
+        waitForOutput("Traceback (most recent call last):");
+        waitForOutput("line 7, in foo");
+        waitForOutput("return 1 / x");
+        waitForOutput("ZeroDivisionError: ");
         eval("__exception__[0].__name__").hasValue("'ZeroDivisionError'");
         resume();
         waitForTerminate();