Drop support for Python 3.7 (#257)

Drop support for Python 3.7, and remove it from the tox and
CI/CD configurations.

Upgrade mypy to avoid python/mypy#13499,
and add checks for 'None' to account for newly reported errors.

Author: greschd

.github/workflows/ci_cd.yml

@@ -58,7 +58,7 @@ jobs:
         # docker images on the windows agents. See the issue
         # https://github.com/actions/runner-images/issues/1143
         os: [ubuntu-latest]
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
       fail-fast: false
     steps:
       - name: "Login in Github Container registry"
@@ -120,7 +120,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.7
+          python-version: 3.8
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip tox tox-gh-actions

.gitignore

@@ -157,6 +157,9 @@ cython_debug/
 
 # End of https://www.toptal.com/developers/gitignore/api/python
 
+# VSCode
+.vscode/
+
 # Generated sphinx gallery
 doc/source/examples/gallery_examples
 
@@ -165,4 +168,4 @@ doc/source/api/_autosummary
 
 # testing server logs
 tests/logs/*_log_err*.txt
-tests/logs/*_log_out*.txt
+tests/logs/*_log_out*.txt

README.rst

@@ -8,7 +8,7 @@ PyDPF Composites
    :target: https://docs.pyansys.com/
    :alt: PyAnsys
 
-.. |python| image:: https://img.shields.io/badge/Python-%3E%3D3.7-blue
+.. |python| image:: https://img.shields.io/badge/Python-%3E%3D3.8-blue
    :target: https://pypi.org/project/ansys-dpf-composites/
    :alt: Python
 
@@ -74,13 +74,13 @@ familiar with the `PyAnsys Developer's Guide`_.
         pipx install poetry
         pipx install pip
         pipx install tox
-    
-    
+
+
     PyDPF Composites uses `Poetry <https://python-poetry.org>`_
     to manage the development environment.
 
 #.  Create a virtual environment and install the package with the
-    development dependencies: 
+    development dependencies:
 
     .. code:: bash
 

poetry.lock

@@ -24,12 +24,8 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.7,<4.0"
-numpy = [
-    {version = ">=1.19,<1.22", python = ">=3.7,<3.8"},
-    {version = "^1.22", python = ">=3.8"}
-]
-importlib-metadata = {version = "^4.0", python = "<3.8"}
+python = ">=3.8,<4.0"
+numpy = "^1.22"
 build = {version = "^0.8.0", optional = true}
 twine = {version = "^4.0.1", optional = true}
 Sphinx =  {version = "^5.0.1", optional = true}
@@ -41,8 +37,8 @@ sphinx-design = {version = "^0.3.0", optional = true}
 pypandoc = {version = "^1.8.1", optional = true}
 pytest = {version = "^7.1.2", optional = true}
 pytest-cov = {version = "^3.0.0", optional = true}
-mypy = {version = "^0.931", optional = true}
-mypy-extensions = {version = "^0.4.3", optional = true}
+mypy = {version = "^1.2.0", optional = true}
+mypy-extensions = {version = "^1.0.0", optional = true}
 # If this version changes also the link in doc/src/conf.py intersphinx-mapping has to change
 ansys-dpf-core = ">=0.8,<1"
 vtk = {version = "*"}
@@ -52,10 +48,7 @@ pre-commit = {version = "*", optional = true}
 # Upper bound because there is a problem with examples in versions > 1.20.1
 sphinx-autodoc-typehints = {version = "^1.19,<1.20.2", optional = true}
 pylint = {version = "^2.13", optional = true}
-scipy = [
-    {version = ">=1.6", python = ">=3.7,<3.8", optional = true},
-    {version = ">=1.9.0", python = ">=3.8", optional = true}
-]
+scipy = {version = ">=1.9.0", optional = true}
 
 [tool.poetry.extras]
 all = [
@@ -124,6 +117,6 @@ ignored-classes = [
 ]
 
 [tool.mypy]
-python_version = 3.7
+python_version = 3.8
 mypy_path = "$MYPY_CONFIG_FILE_DIR/src:$MYPY_CONFIG_FILE_DIR/tests"
 ignore_missing_imports = true

pyproject.toml

@@ -218,6 +218,9 @@ def get_dpf_material_id_by_analyis_ply_map(
                 layer_index = analysis_ply_info_provider.get_layer_index_by_element_id(
                     element_id_int
                 )
+                assert (
+                    layer_index is not None
+                ), f"No layer index found for element with id {element_id_int}."
                 analysis_ply_to_material_map[analysis_ply_name] = element_info.dpf_material_ids[
                     layer_index
                 ]
@@ -355,6 +358,8 @@ def get_element_info(self, element_id: int) -> Optional[ElementInfo]:
         n_spots = _get_n_spots(apdl_element_type, keyopt_8, keyopt_3)
         dpf_material_ids: Any = []
         element_type = self.dpf_element_types.by_id(element_id)
+        if element_type is None:
+            raise IndexError(f"No DPF element type for element with id {element_id}.")
 
         layer_data = self.layer_indices.by_id(element_id)
         if layer_data is not None:

src/ansys/dpf/composites/layup_info/_layup_info.py

@@ -1,14 +1,13 @@
 [tox]
 description = Default tox environments list
 envlist =
-    style,{py3.7,py3.8,py3.9,py3.10,py3.11}{,-coverage},doc-{windows,linux}
+    style,{py3.8,py3.9,py3.10,py3.11}{,-coverage},doc-{windows,linux}
 skip_missing_interpreters = false
 isolated_build = true
 
 [gh-actions]
 description = The tox environment to be executed in gh-actions for a given python version
 python =
-    3.7: py3.7-coverage
     3.8: py3.8-coverage
     3.9: py3.9-coverage
     3.10: py3.10-coverage
@@ -17,7 +16,6 @@ python =
 [testenv]
 description = Checks for project unit tests and coverage (if desired)
 basepython =
-    py3.7: python3.7
     py3.8: python3.8
     py3.9: python3.9
     py3.10: python3.10
@@ -36,7 +34,7 @@ commands =
 [testenv:test-minimal]
 description = Checks for project unit tests with minimal package versions
 basepython =
-   python3.7
+   python3.8
 skip_install = true
 allowlist_externals  =
     poetry
@@ -104,4 +102,4 @@ allowlist_externals  =
     poetry
 basepython =
  python3.9
-commands =poetry install -E all
+commands =poetry install -E all