Added py_format job.

python/format.yml

+py_format:
+  extends:
+    - .python-default
+  script:
+    - black --diff --check .
+  # format is not required for different py versions
+  parallel:
+    matrix:
+      - PYTHON_VERSIONS: "3.10"

python-template @ 76e5c375

-Subproject commit b11729bcc1f51e550261b258e236e7bf288e05e2
+Subproject commit 76e5c37562775c888c7e3e0608c83f42e82985cd

test/python.yml

@@ -42,3 +42,20 @@ py_lint:
         PYTHON_VERSIONS: !reference [.python-versions, versions]
   allow_failure:
     exit_codes: 1
+
+py_format:
+  before_script:
+    - !reference [.ci-setup, script]
+    - cd $PROJECT_ROOT
+    - !reference [.python-default, before_script]
+    - |
+      if [ $EXIT_CODE -eq 1 ]; then
+        echo "import os" >> tests/test_base.py
+      fi
+  parallel:
+    matrix:
+      - PROJECT_ROOT: "test/python-template"
+        EXIT_CODE: [0, 1]
+        PYTHON_VERSIONS: "3.10"
+  allow_failure:
+    exit_codes: 1