Drop Python 3.9 support

.github/workflows/test.yml

@@ -9,7 +9,7 @@ jobs:
       max-parallel: 20
       matrix:
         os: [ubuntu-latest, macos-14, windows-latest]
-        python-version: ["3.9", "3.12"]
+        python-version: ["3.10", "3.12"]
 
     runs-on: ${{ matrix.os }}
 
@@ -30,6 +30,6 @@ jobs:
         run: pytest --cov=monty --cov-report html:coverage_reports tests
 
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

README.md

@@ -24,6 +24,6 @@ Monty is created to serve as a complement to the Python standard library. It
 provides suite of tools to solve many common problems, and hopefully,
 be a resource to collect the best solutions.
 
-Monty supports Python 3.x.
+Monty supports Python 3.10+.
 
 Please visit the [official docs](https://materialsvirtuallab.github.io/monty) for more information.

pylintrc

@@ -80,7 +80,7 @@ persistent=yes
 
 # Minimum Python version to use for version dependent checks. Will default to
 # the version used to run pylint.
-py-version=3.9
+py-version=3.10
 
 # Discover python modules and packages in the file system subtree.
 recursive=no

pyproject.toml

@@ -9,7 +9,7 @@ maintainers = [
 ]
 description = "Monty is the missing complement to Python."
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 classifiers = [
     "Programming Language :: Python :: 3",
     "Development Status :: 4 - Beta",
@@ -57,10 +57,9 @@ include = ["monty", "monty.*"]
 
 [tool.black]
 line-length = 120
-target-version = ['py39']
+target-version = ["py310"]
 include = '\.pyi?$'
 exclude = '''
-
 (
   /(
       \.eggs         # exclude a few common directories in the
@@ -85,26 +84,24 @@ branch = true
 exclude_also = [
     "@deprecated",
     "def __repr__",
-    "if 0:",
-    "if __name__ == .__main__.:",
     "if self.debug:",
     "if settings.DEBUG",
     "pragma: no cover",
     "raise AssertionError",
     "raise NotImplementedError",
     "show_plot",
     "if TYPE_CHECKING:",
-    "if typing.TYPE_CHECKING:",
     "except ImportError:"
 ]
 
 [tool.mypy]
 ignore_missing_imports = true
 
-[tool.ruff]
-lint.select = [
-  "I",  #isort
+[tool.ruff.lint]
+select = [
+  "I",  # isort
 ]
 
-lint.isort.required-imports = ["from __future__ import annotations"]
-lint.isort.known-first-party = ["monty"]
+[tool.ruff.lint.isort]
+required-imports = ["from __future__ import annotations"]
+known-first-party = ["monty"]