Merge pull request #1509 from Libensemble/dropping_3.9

Adjusting to account for 3.10 as minimum python version

Author: jmlarson1

.github/workflows/basic.yml

@@ -17,7 +17,7 @@ jobs:
             matrix:
                 os: [ubuntu-latest]
                 mpi-version: [mpich]
-                python-version: [3.9, "3.10", "3.11", "3.12", "3.13"]
+                python-version: ["3.10", "3.11", "3.12", "3.13"]
                 pydantic-version: ["2.8.2"]
                 comms-type: [m, l]
                 include:

.github/workflows/extra.yml

@@ -11,7 +11,7 @@ jobs:
             matrix:
                 os: [ubuntu-latest]
                 mpi-version: [mpich]
-                python-version: [3.9, "3.10", "3.11", "3.12"]
+                python-version: ["3.10", "3.11", "3.12"]
                 pydantic-version: ["2.8.2"]
                 comms-type: [m, l]
                 include:

.pre-commit-config.yaml

@@ -8,13 +8,13 @@ repos:
       exclude: ^(.*\.xml|.*\.svg)$
 
 - repo: https://github.com/pycqa/isort
-  rev: 5.13.2
+  rev: 6.0.0
   hooks:
     - id: isort
       args: [--profile=black, --line-length=120]
 
 - repo: https://github.com/psf/black
-  rev: 24.10.0
+  rev: 25.1.0
   hooks:
     - id: black
       args: [--line-length=120]

.readthedocs.yml

@@ -3,7 +3,7 @@ version: 2
 build:
   os: "ubuntu-22.04"
   tools:
-    python: "3.9"
+    python: "3.10"
 
 sphinx:
     configuration: docs/conf.py

docs/advanced_installation.rst

@@ -6,7 +6,7 @@ libEnsemble can be installed from ``pip``, ``Conda``, or ``Spack``.
 libEnsemble requires the following dependencies, which are typically
 automatically installed alongside libEnsemble:
 
-* Python_       ``>= 3.9``
+* Python_       ``>= 3.10``
 * NumPy_        ``>= 1.21``
 * psutil_       ``>= 5.9.4``
 * `pydantic`_   ``<= 1.10.12``
@@ -139,7 +139,7 @@ Further recommendations for selected HPC systems are given in the
 
         **Hint**: When combining Spack and Conda, you can access your Conda Python and packages in your
         ``~/.spack/packages.yaml`` while your Conda environment is activated, using ``CONDA_PREFIX``
-        For example, if you have an activated Conda environment with Python 3.9 and SciPy installed:
+        For example, if you have an activated Conda environment with Python 3.10 and SciPy installed:
 
         .. code-block:: yaml
 
@@ -152,12 +152,12 @@ Further recommendations for selected HPC systems are given in the
             py-numpy:
                 externals:
                 - spec: "py-numpy"
-                prefix: $CONDA_PREFIX/lib/python3.9/site-packages/numpy
+                prefix: $CONDA_PREFIX/lib/python3.10/site-packages/numpy
                 buildable: False
             py-scipy:
                 externals:
                 - spec: "py-scipy"
-                prefix: $CONDA_PREFIX/lib/python3.9/site-packages/scipy
+                prefix: $CONDA_PREFIX/lib/python3.10/site-packages/scipy
                 buildable: True
 
         For more information on Spack builds and any particular considerations

docs/platforms/perlmutter.rst

@@ -21,7 +21,7 @@ Create a conda environment
 You can create a conda_ environment in which to install libEnsemble and
 all dependencies. For example::
 
-    conda create -n libe-pm python=3.9 -y
+    conda create -n libe-pm python=3.10 -y
 
 As Perlmutter has a shared HOME filesystem with other clusters, using
 the ``-pm`` suffix (for Perlmutter) is good practice.

docs/platforms/summit.rst

@@ -21,7 +21,7 @@ Begin by loading the Python 3 Anaconda module::
 
 You can now create and activate your own custom conda_ environment::
 
-    conda create --name myenv python=3.9
+    conda create --name myenv python=3.10
     export PYTHONNOUSERSITE=1 # Make sure get python from conda env
     . activate myenv
 

docs/tutorials/local_sine_tutorial.rst

@@ -22,7 +22,7 @@ need to write a new allocation function.
 
         .. code-block:: bash
 
-            python --version  # This should be >= 3.9
+            python --version  # This should be >= 3.10
 
         .. _Python: https://www.python.org/
 

pyproject.toml

@@ -8,7 +8,7 @@ dependencies = ["numpy", "psutil", "pydantic", "pyyaml", "tomli"]
 
 description = "A Python toolkit for coordinating asynchronous and dynamic ensembles of calculations."
 name = "libensemble"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 license = {file = "LICENSE"}
 readme = "README.rst"
 
@@ -22,7 +22,6 @@ classifiers = [
         "Operating System :: Unix",
         "Operating System :: MacOS",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
@@ -83,7 +82,7 @@ nlopt = ">=2.8.0,<3"
 scipy = ">=1.9.1,<2"
 
 [tool.pixi.dependencies]
-python = ">=3.9,<3.14"
+python = ">=3.10,<3.14"
 pip = ">=24.3.1,<25"
 setuptools = ">=75.1.0,<76"
 numpy = ">=1.21,<3"