tests/test-demandimport.py

--- a/tests/test-demandimport.py	Tue Jan 12 17:32:08 2021 -0800
+++ b/tests/test-demandimport.py	Tue Jan 12 22:43:55 2021 +0100
@@ -14,7 +14,7 @@
 
 # Only run if demandimport is allowed
 if subprocess.call(
-    ['python', '%s/hghave' % os.environ['TESTDIR'], 'demandimport']
+    [os.environ['PYTHON'], '%s/hghave' % os.environ['TESTDIR'], 'demandimport']
 ):
     sys.exit(80)