Switch packaging from setuptools to poetry

.github/dependabot.yml

@@ -0,0 +1,7 @@
+version: 2
+updates:
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    versioning-strategy: "lockfile-only"

.github/workflows/ci_cd.yml

@@ -24,7 +24,7 @@ jobs:
 
       - name: Install style requirements
         run: |
-          pip install -r requirements_style.txt --disable-pip-version-check
+          pip install .[style] --disable-pip-version-check
 
       - name: Codespell
         run: |
@@ -47,20 +47,19 @@ jobs:
 
       - name: Create wheel
         run: |
-          pip install wheel
-          python setup.py bdist_wheel
+          pip install build
+          python -m build --wheel
 
       - name: Validate wheel
         run: |
           pip install twine
           twine check dist/*
 
-      - name: Install library
-        run: pip install dist/*
+      - name: Install library, with test extra
+        run: pip install $(echo dist/*)[test]
 
       - name: Unit testing
         run: |
-          pip install -r requirements_test.txt
           cd tests  # so we're testing the install, not local
           pytest -vx
 
@@ -82,12 +81,11 @@ jobs:
         with:
           python-version: 3.8
 
-      - name: Install library
-        run: pip install .
+      - name: Install library, with docs extra
+        run: pip install .[docs]
 
       - name: Build HTML
         run: |
-          pip install -r requirements_docs.txt
           make -C doc html SPHINXOPTS="-W"
 
       - name: Build PDF Documentation

README.rst

@@ -34,8 +34,14 @@ Alternatively, clone and install in development mode with:
 
    git clone https://github.com/pyansys/
    cd <PyAnsys-Library>
-   pip install -e .
+   pip install poetry
+   poetry install
 
+This creates a new virtual environment, which can be activated with
+
+.. code::
+
+   poetry shell
 
 Documentation
 -------------