--- ruamel.yaml-0.18.6/tox.ini.orig
+++ ruamel.yaml-0.18.6/tox.ini
@@ -4,9 +4,8 @@
 
 [testenv]
 allowlist_externals = /bin/bash
-install_command = pip install --disable-pip-version-check {opts} {packages}
 commands =
-    /bin/bash -c 'pytest {posargs} _test/test_*.py'
+    /bin/bash -c 'python -m pytest {posargs} _test/test_*.py'
 deps =
     pytest
     setuptools