Bump min Python version 3.7

.github/workflows/python-tests.yml

@@ -19,7 +19,7 @@ jobs:
       matrix:
         include:
           - os: ubuntu-20.04
-            python-version: "3.7"
+            python-version: "3.8"
           - os: ubuntu-20.04
             python-version: "3.11"
           - os: macos-11
@@ -75,7 +75,7 @@ jobs:
     name: Python ${{ matrix.python-version }} / check build
     strategy:
       matrix:
-        python-version: ['3.7', '3.11']
+        python-version: ['3.8', '3.11']
         os: [ubuntu-20.04]
     steps:
       - uses: actions/checkout@v3

.github/workflows/torch-tests.yml

@@ -19,7 +19,7 @@ jobs:
         include:
           - os: ubuntu-20.04
             torch-version: 1.11.*
-            python-version: "3.7"
+            python-version: "3.8"
             cargo-test-flags: --release
 
           - os: ubuntu-20.04

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "rascaline"
 dynamic = ["version", "authors", "optional-dependencies"]
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 
 readme = "README.rst"
 license = {text = "BSD-3-Clause"}

python/rascaline-torch/pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "rascaline-torch"
 dynamic = ["version", "authors", "dependencies"]
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 
 readme = "README.rst"
 license = {text = "BSD-3-Clause"}

python/rascaline-torch/rascaline/torch/__init__.py

@@ -1,15 +1,7 @@
-import sys
+import importlib.metadata
 
 
-if (sys.version_info.major >= 3) and (sys.version_info.minor >= 8):
-    import importlib.metadata
-
-    __version__ = importlib.metadata.version("rascaline-torch")
-
-else:
-    from pkg_resources import get_distribution
-
-    __version__ = get_distribution("rascaline-torch").version
+__version__ = importlib.metadata.version("rascaline-torch")
 
 
 from ._c_lib import _load_library

python/rascaline/rascaline/version.py

@@ -1,12 +1,4 @@
-import sys
+import importlib.metadata
 
 
-if (sys.version_info.major >= 3) and (sys.version_info.minor >= 8):
-    import importlib.metadata
-
-    __version__ = importlib.metadata.version("rascaline")
-
-else:
-    from pkg_resources import get_distribution
-
-    __version__ = get_distribution("rascaline").version
+__version__ = importlib.metadata.version("rascaline")

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-min_version = 4.0
+min_version = 4.9.0
 # these are the default environments, i.e. the list of tests running when you
 # execute `tox` in the command-line without anything else
 envlist =
@@ -31,14 +31,11 @@ test_options =
     --cov-report= \
     --import-mode=append
 
-commands =
-    # error if the user gives a wrong testenv name in `tox -e`
-    python -c "import sys; print('environement {env_name} does not exist'); sys.exit(1)"
-
 
 [testenv:build-rascaline]
-# This environment is only used to build the wheels which are then re-used by
-# all other environments requiring rascaline to be installed
+description =
+    This environment is only used to build the wheels which are then re-used by
+    all other environments requiring rascaline to be installed
 passenv = *
 deps =
     setuptools
@@ -50,8 +47,9 @@ commands =
 
 
 [testenv:all-deps]
-# Run Python unit tests with all dependencies installed (ase & chemfiles are
-# optional dependencies)
+description =
+    Run Python unit tests with all dependencies installed (ase & chemfiles are optional
+    dependencies)
 deps =
     {[testenv]metatensor-core-requirement}
     ase
@@ -70,7 +68,7 @@ commands =
 
 
 [testenv:min-deps]
-# Run Python unit tests with the minimal dependencies installed
+description = Run Python unit tests with the minimal dependencies installed
 deps =
     {[testenv]metatensor-core-requirement}
     pytest
@@ -81,6 +79,7 @@ commands =
 
 
 [testenv:torch-tests]
+description = Run Python unit tests using torch
 deps =
     {[testenv]metatensor-torch-requirement}
 
@@ -101,6 +100,7 @@ commands =
     pytest {[testenv]test_options} --assert=plain {posargs}
 
 [testenv:docs]
+description = Build the package documentation.
 deps =
     -r docs/requirements.txt
     cmake
@@ -118,7 +118,7 @@ commands =
 
 
 [testenv:docs-tests]
-# this environement runs the doctests defined in any metatensor package
+description =  Runs the doctests defined in any metatensor package
 deps =
     {[testenv]metatensor-core-requirement}
     ase
@@ -129,8 +129,9 @@ commands =
 
 
 [testenv:lint]
-# lint the Python code with flake8 (code linter), black (code formatter), and
-# isort (sorting of imports)
+description =
+    lint the Python code with flake8 (code linter), black (code formatter), and isort
+    (sorting of imports)
 package = skip
 deps =
     black
@@ -148,9 +149,8 @@ commands =
 
 
 [testenv:format]
+description = Abuse tox to do actual formatting on all files.
 package = skip
-# Abuse tox to do actual formatting. Users can call `tox -e format` to run
-# formatting on all files
 deps =
     black
     blackdoc