bpo-30223: Add global in regrtest main_in_temp_cwd (#1399)
diff --git a/Lib/test/regrtest.py b/Lib/test/regrtest.py
index cbd9185..5702e38 100755
--- a/Lib/test/regrtest.py
+++ b/Lib/test/regrtest.py
@@ -1647,6 +1647,8 @@
def main_in_temp_cwd():
"""Run main() in a temporary working directory."""
+ global TEMPDIR
+
# When tests are run from the Python build directory, it is best practice
# to keep the test files in a subfolder. It eases the cleanup of leftover
# files using command "make distclean".