version cleanup: removed py37 shims (though tests still pass for it),…

… made py38-py311 requirements (numba not out yet for py312), and limited tox/GH Actions to testing oly py3.8-3.11.

.github/workflows/tox-cross-platform.yml

@@ -17,7 +17,7 @@ jobs:
  strategy:
  matrix:
  os: [macos-latest, windows-latest, ubuntu-latest]
- python: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+ python: ["3.8", "3.9", "3.10", "3.11"]
 
  steps:
  - uses: actions/checkout@v3

setup.cfg

@@ -22,7 +22,7 @@ classifiers =
  Topic :: Scientific/Engineering :: Visualization
 
 [options]
-python_requires = >=3.7
+python_requires = >=3.8, <3.12
 package_dir =
  = src
 packages = find:
@@ -31,7 +31,6 @@ install_requires =
  matplotlib
  numpy
  sparse!=0.11, !=1.12
- importlib_resources ; python_version<"3.7"
 
 [options.packages.find]
 where = src
@@ -93,7 +92,7 @@ source =
  */site-packages/nmrsim/
 
 [tox:tox]
-envlist = py37, py38, py39, py310, py311, py312
+envlist = py38, py39, py310, py311
 isolated_build = True
 
 [testenv]
@@ -109,11 +108,11 @@ commands =
 # usedevelop=True should = "pip install -e ."
 usedevelop=True
 
-[testenv:py312]
-commands =
- download = true
- virtualenv --upgrade-embed-wheels
- pytest {posargs}
+;[testenv:py312]
+;commands =
+; download = true
+; virtualenv --upgrade-embed-wheels
+; pytest {posargs}
 
 [testenv:format]
 skip_install = True

src/nmrsim/__init__.py

@@ -64,5 +64,5 @@
 
 __version__ = "0.6.0"
 
-# When Python 5.7 sunsets, consider the following for dynamic versioning:
+# When Python 3.7 sunsets, consider the following for dynamic versioning:
 # __version__ = __import__('importlib.metadata').metadata.version(__package__)

src/nmrsim/qm.py

@@ -40,16 +40,10 @@
 calculating second-order spectra: one using pydata/sparse and caching,
 and the other using neither.
 """
-import sys
-
-import scipy.sparse
-
-if sys.version_info >= (3, 7):
- from importlib import resources
-else:
- import importlib_resources as resources
+from importlib import resources
 
 import numpy as np # noqa: E402
+import scipy.sparse
 import sparse # noqa: E402
 
 import nmrsim.bin # noqa: E402