1 files changed, 10 insertions, 0 deletions
diff --git a/Lib/test/test_support.py b/Lib/test/test_support.py
index 6c2b2b2..cf912e1 100644
--- a/Lib/test/test_support.py
+++ b/Lib/test/test_support.py
@@ -1219,3 +1219,13 @@ def args_from_interpreter_flags():
         if v > 0:
             args.append('-' + opt * v)
     return args
+
+def strip_python_stderr(stderr):
+    """Strip the stderr of a Python process from potential debug output
+    emitted by the interpreter.
+
+    This will typically be run on the result of the communicate() method
+    of a subprocess.Popen object.
+    """
+    stderr = re.sub(br"\[\d+ refs\]\r?\n?$", b"", stderr).strip()
+    return stderr