To treat YAML formatting inconsistency warnings from yamllint as
blocking errors for development, invoke it with --strict so that tox
will report a failure rather than success.
commands = mudpy_selftest etc/mudpy.yaml
[testenv:yamllint]
commands = mudpy_selftest etc/mudpy.yaml
[testenv:yamllint]
-commands = yamllint {posargs} .
+commands = yamllint --strict {posargs} .
[flake8]
show-source = True
[flake8]
show-source = True