ci: run linter

.github/workflows/main.yml

@@ -23,6 +23,8 @@ jobs:
           git config user.email "actions@users.noreply.github.com"
       - name: Test
         run: coverage run -m pytest 
+      - name: Lint
+        run: make lint
       - name: Update(master)
         if: ${{ github.ref == 'refs/heads/master' && github.event_name != 'pull_request' }}
         env:

Makefile

@@ -2,8 +2,14 @@
 
 default: format
 
+ifeq ($(OS),Windows_NT)
+PYTHON?=py -3.8
+else
+PYTHON?=python3
+endif
+
 lint:
-	py -3.8 -m black -t py38 --check --diff .
+	$(PYTHON) -m black -t py38 --check --diff .
 
 format:
-	py -3.8 -m black -t py38 . 
+	$(PYTHON) -m black -t py38 . 

dev-requirements.txt

@@ -1,2 +1,3 @@
 pytest==6.2.5
 coverage==5.5
+black==21.5b2