Introduce poetry

.github/workflows/action.yaml

@@ -6,25 +6,53 @@ on:
   push:
 
 jobs:
-  pytest:
-    name: Run pytest
+  test:
+    name: Test
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
         python-version: [3.7, 3.8, 3.9]
+        poetry-version: [1.1.5]
+        with-up-to-date-dependencies: [false, true]
     steps:
       - name: Checkout
         uses: actions/checkout@v2
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v1
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Install dependencies
+      - uses: abatilo/[email protected]
+        with:
+          poetry-version: ${{ matrix.poetry-version }}
+      - name: Remove the lockfile to install latest packages
+        if: matrix.with-up-to-date-dependencies
         run: |
-          python -m pip install --upgrade pip
-          pip install -r requirements.txt
-          pip install -r handyrl/envs/kaggle/requirements.txt
+          rm poetry.lock
+      - run: |
+          poetry install
       - name: pytest
         run: |
-          python -m pytest tests
+          poetry run python -m pytest
+  validate-requirements:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.9]
+        poetry-version: [1.1.5]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v1
+        with:
+          python-version: ${{ matrix.python-version }}
+      - uses: abatilo/[email protected]
+        with:
+          poetry-version: ${{ matrix.poetry-version }}
+      - run: |
+          # If failed, do
+          #   $ poetry export --without-hashes -f requirements.txt --output requirements.txt
+          #   $ poetry export --without-hashes -f requirements.txt --output requirements-dev.txt --dev
+          diff <(poetry export --without-hashes -f requirements.txt | grep -v '^Warning:') requirements.txt
+          diff <(poetry export --without-hashes -f requirements.txt --dev | grep -v '^Warning:') requirements-dev.txt

README.md

@@ -53,7 +53,13 @@ pip3 install -r requirements.txt
 
 To use games of kaggle environments (e.g. Hungry Geese) you can install also additional dependencies.
 ```
-pip3 install -r handyrl/envs/kaggle/requirements.txt
+pip3 install -r requirements-dev.txt
+```
+
+Or equivalently, you can use [poetry](https://python-poetry.org/).
+
+```
+poetry install
 ```