mypy fix test

Author: AtsushiSakai

.github/workflows/pythonpackage.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.6, 3.7]
+        python-version: [3.7, 3.8]
 
     steps:
     - uses: actions/checkout@v1
@@ -34,7 +34,15 @@ jobs:
       run: pip install mypy
     - name: mypy check
       run: |
-        find . -name "*.py" | xargs mypy
+        find AerialNavigation -name "*.py" | xargs mypy
+        find ArmNavigation -name "*.py" | xargs mypy
+        find Bipedal -name "*.py" | xargs mypy
+        find InvertedPendulumCart -name "*.py" | xargs mypy
+        find Localization -name "*.py" | xargs mypy
+        find Mapping -name "*.py" | xargs mypy
+        find PathPlanning -name "*.py" | xargs mypy
+        find PathTracking -name "*.py" | xargs mypy
+        find SLAM -name "*.py" | xargs mypy
     - name: do all unit tests
       run: bash runtests.sh