Enable doctests by default

.gitlab-ci.yml

@@ -5,7 +5,7 @@ pytest:
   before_script:
     - python3 -m pip install -r requirements.txt
   script:
-    - pytest --doctest-modules --junitxml=report.xml
+    - pytest --junitxml=report.xml
   artifacts:
     when: always
     reports:

setup.cfg

@@ -14,3 +14,6 @@ install_requires =
 [flake8]
 max-line-length = 88
 extend-ignore = E203
+
+[tool:pytest]
+addopts = --doctest-modules