Merge branch 't3370' into next

Incubates #3370.

source/logHandler.py

@@ -32,7 +32,11 @@ def getCodePath(f):
 	@rtype: string
 	"""
 	fn=f.f_code.co_filename
-	if fn[0] != "<" and not fn.startswith(sys.path[0] + "\\"):
+	if fn[0] != "<" and os.path.isabs(fn) and not fn.startswith(sys.path[0] + "\\"):
+		# This module is external because:
+		# the code comes from a file (fn doesn't begin with "<");
+		# it has an absolute file path (code bundled in binary builds reports relative paths); and
+		# it is not part of NVDA's Python code (not beneath sys.path[0]).
 		path="external:"
 	else:
 		path=""