commit c5fc15685202cda73f7c3f5c6f299b0945f58508
author Pablo Galindo <Pablogsal@gmail.com> Wed Apr 22 23:29:27 2020 +0100
committer GitHub <noreply@github.com> Wed Apr 22 23:29:27 2020 +0100
tree 7624ae45b95f2812e801c5879bdbdcb796f570a6
parent a81849b0315277bb3937271174aaaa5059c0b445

bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503)

Co-authored-by: Guido van Rossum <guido@python.org>
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>

Tools/scripts/run_tests.py

diff --git a/Tools/scripts/run_tests.py b/Tools/scripts/run_tests.py
index 3c1c3bd..bcfa5e9 100644
--- a/Tools/scripts/run_tests.py
+++ b/Tools/scripts/run_tests.py
@@ -25,8 +25,10 @@
             '-u',                 # Unbuffered stdout and stderr
             '-W', 'default',      # Warnings set to 'default'
             '-bb',                # Warnings about bytes/bytearray
-            '-E',                 # Ignore environment variables
             ]
+    if 'PYTHONOLDPARSER' not in os.environ:
+        args.append('-E')         # Ignore environment variables
+
     # Allow user-specified interpreter options to override our defaults.
     args.extend(test.support.args_from_interpreter_flags())