gh-139531: Fix TypeError in inspect.getframeinfo when lineno is None

Lib/inspect.py

@@ -1582,6 +1582,9 @@ def getframeinfo(frame, context=1):
 
     lineno = positions[0]
 
+    if lineno is None:
+        lineno = 1
+
     if not isframe(frame):
         raise TypeError('{!r} is not a frame or traceback object'.format(frame))
 

Lib/test/test_inspect/test_inspect.py

@@ -28,6 +28,8 @@
 import unittest.mock
 import warnings
 import weakref
+import inspect
+import sys
 
 
 try:
@@ -6250,3 +6252,18 @@ def f():
 
 if __name__ == "__main__":
     unittest.main()
+
+def test_getframeinfo_with_exceptiongroup():
+    code = """
+try:
+    1/0
+except* Exception:
+    raise
+"""
+    try:
+        exec(code)
+    except:
+        tb = sys.exc_info()[2]
+        while tb:
+            info = inspect.getframeinfo(tb.tb_frame)
+            tb = tb.tb_next