Replace the path to the standard library with a reproducible one

Author: domdfcoding

testing_tox/__init__.py

@@ -29,6 +29,7 @@
 # stdlib
 import re
 import sys
+import sysconfig
 from typing import Iterable
 
 # 3rd party
@@ -64,8 +65,11 @@ def prepare_stdout(stdout: str, toxinidir: PathPlus):
 	Given the content of ``sys.stdout`` captured from a run of ``tox``,
 	prepare the output for regression tests.
 
-	This entails replacing the path ``toxindir`` with ``...``,
-	and removing deprecation warnings generated by ``packaging``.
+	This entails:
+
+	* replacing the path ``toxindir`` with ``...``
+	* removing deprecation warnings generated by ``packaging``
+	* replacing the path to the python stdlib with ``/usr/lib/python3.x``
 
 	:param stdout:
 	:param toxinidir:
@@ -80,5 +84,9 @@ def prepare_stdout(stdout: str, toxinidir: PathPlus):
 			'',
 			stdout,
 			)
+	stdout = stdout.replace(
+			sysconfig.get_path("stdlib"),
+			f"/usr/lib/python{sys.version_info.major}.{sys.version_info.minor}",
+			)
 
 	return stdout