Python 3.11 compatibility

.github/workflows/code_checks.yml

@@ -0,0 +1,46 @@
+name: code-checks
+
+# Controls when the workflow will run
+on:
+  # Triggers the workflow on push events
+  push:
+    branches: [ 'main' ]
+    tags-ignore: [ '**' ]
+
+  # Triggers the workflow on pull request events
+  pull_request:
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  code_checks:
+    name: code checks
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false  # false: try to complete all jobs
+      matrix:
+        python-version: ["3.11"]
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+        cache: 'pip'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install .[tests,examples] ./transformations ./lint_rules
+        pip list
+    - name: Add pylint annotator
+      uses: pr-annotators/[email protected]
+    - name: Analysing the code with pylint
+      run: |
+        pylint --rcfile=.pylintrc loki tests
+        pushd transformations && pylint --rcfile=../.pylintrc transformations tests; popd
+        pushd lint_rules && pylint --rcfile=../.pylintrc lint_rules tests; popd
+        jupyter nbconvert --to=script --output-dir=example_converted example/*.ipynb
+        pylint --rcfile=.pylintrc_ipynb example_converted/*.py

.github/workflows/regression_tests.yml

@@ -21,7 +21,7 @@ jobs:
     strategy:
       fail-fast: false  # false: try to complete all jobs
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
 
     steps:
       - uses: actions/checkout@v3

.github/workflows/tests.yml

@@ -14,45 +14,14 @@ on:
   workflow_dispatch:
 
 jobs:
-  code_checks:
-    name: code checks
-
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false  # false: try to complete all jobs
-      matrix:
-        python-version: ["3.10"]
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
-      with:
-        python-version: ${{ matrix.python-version }}
-        cache: 'pip'
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install .[tests,examples] ./transformations ./lint_rules
-        pip list
-    - name: Add pylint annotator
-      uses: pr-annotators/[email protected]
-    - name: Analysing the code with pylint
-      run: |
-        pylint --rcfile=.pylintrc loki tests
-        pushd transformations && pylint --rcfile=../.pylintrc transformations tests; popd
-        pushd lint_rules && pylint --rcfile=../.pylintrc lint_rules tests; popd
-        jupyter nbconvert --to=script --output-dir=example_converted example/*.ipynb
-        pylint --rcfile=.pylintrc_ipynb example_converted/*.py
-
   pytest:
     name: Python ${{ matrix.python-version }}
 
     runs-on: ubuntu-20.04
     strategy:
       fail-fast: false  # false: try to complete all jobs
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
 
     steps:
       - uses: actions/checkout@v3

README.md

@@ -1,6 +1,7 @@
 # Loki: Freely programmable source-to-source translation
 
 [![license](https://img.shields.io/github/license/ecmwf-ifs/loki)](https://www.apache.org/licenses/LICENSE-2.0.html)
+[![code-checks](https://github.com/ecmwf-ifs/loki/actions/workflows/code_checks.yml/badge.svg)](https://github.com/ecmwf-ifs/loki/actions/workflows/code_checks.yml)
 [![tests](https://github.com/ecmwf-ifs/loki/actions/workflows/tests.yml/badge.svg)](https://github.com/ecmwf-ifs/loki/actions/workflows/tests.yml)
 [![regression-tests](https://github.com/ecmwf-ifs/loki/actions/workflows/regression_tests.yml/badge.svg)](https://github.com/ecmwf-ifs/loki/actions/workflows/regression_tests.yml)
 [![codecov](https://codecov.io/gh/ecmwf-ifs/loki/branch/main/graph/badge.svg?token=9ZDS95SFWI)](https://codecov.io/gh/ecmwf-ifs/loki)

loki/types.py

@@ -12,7 +12,7 @@
 """
 
 import weakref
-from enum import IntEnum
+from enum import Enum
 from loki.tools import flatten, as_tuple, LazyNodeLookup
 
 
@@ -24,15 +24,8 @@ class DataType:
     Base class for data types a symbol may have
     """
 
-    def __init__(self, *args): # pylint:disable=unused-argument
-        # Make sure we always instantiate one of the subclasses
-        # Note that we cannot use ABC for that as this would cause a
-        # metaclass clash with IntEnum, which is used to represent
-        # intrinsic types in BasicType
-        assert self.__class__ is not DataType
 
-
-class BasicType(DataType, IntEnum):
+class BasicType(DataType, int, Enum):
     """
     Representation of intrinsic data types, names taken from the FORTRAN convention.
 

setup.cfg

@@ -11,7 +11,7 @@ license_file = LICENSE
 
 [options]
 packages = find:
-python_requires = >=3.8,<3.11
+python_requires = >=3.8,<3.12
 install_requires =
     numpy<1.24  # essential for tests, loop transformations and other dependencies
     pymbolic>=2022.1  # essential for expression tree