Factor out stripping of interpreter debug output in test.support.strip_python_stderr()
diff --git a/Lib/test/support.py b/Lib/test/support.py
index 558fbc2..0372f16 100644
--- a/Lib/test/support.py
+++ b/Lib/test/support.py
@@ -1243,3 +1243,13 @@
yield
finally:
del obj[item]
+
+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