Run Azure tests in python development mode

Author: Anthchirp

tox.ini

@@ -15,6 +15,8 @@ deps =
     pytest-azurepipelines
     pytest-cov
     -r{toxinidir}/requirements_dev.txt
+setenv =
+    PYTHONDEVMODE = 1
 commands =
     pytest -ra --basetemp={envtmpdir} --cov=procrunner --cov-report=html --cov-report=xml --cov-branch