From aa2b367256fe4ce3ab05e5dd9e4c1578e3daa41b Mon Sep 17 00:00:00 2001
From: Richard R <58728519+rrjbca@users.noreply.github.com>
Date: Sat, 29 Jun 2024 14:40:44 +0100
Subject: [PATCH] BLD: Set python oldest supported version to 3.8 (#620)

---
 .github/workflows/tests.yaml | 4 ++--
 .readthedocs.yml             | 2 +-
 CONTRIBUTING.rst             | 2 +-
 docs/install.rst             | 2 +-
 setup.cfg                    | 2 +-
 tox.ini                      | 8 ++++----
 6 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index ea2b43a9..ef1069ec 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -25,8 +25,8 @@ jobs:
 
           - name: oldest supported versions
             os: ubuntu-latest
-            python: 3.7
-            toxenv: py37-test-oldest
+            python: '3.8'
+            toxenv: py38-test-oldest
 
           - name: macOS latest supported
             os: macos-latest
diff --git a/.readthedocs.yml b/.readthedocs.yml
index 432dbdea..d6ba8088 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -3,7 +3,7 @@ version: 2
 build:
   os: ubuntu-20.04
   tools:
-    python: '3.7'
+    python: '3.8'
   apt_packages:
     - graphviz
 
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index d749b965..43a4100b 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -168,7 +168,7 @@ Before your pull request can be merged into the codebase, it will be reviewed by
 General Guidelines
 ^^^^^^^^^^^^^^^^^^
 
-- SkyPy is compatible with Python>=3.7 (see `setup.cfg <https://github.com/skypyproject/skypy/blob/main/setup.cfg>`_). SkyPy *does not* support backwards compatibility with Python 2.x; `six`, `__future__` and `2to3` should not be used.
+- SkyPy is compatible with Python>=3.8 (see `setup.cfg <https://github.com/skypyproject/skypy/blob/main/setup.cfg>`_). SkyPy *does not* support backwards compatibility with Python 2.x; `six`, `__future__` and `2to3` should not be used.
 - All contributions should follow the `PEP8 Style Guide for Python Code <https://www.python.org/dev/peps/pep-0008/>`_. We recommend using `flake8 <https://flake8.pycqa.org/>`__ to check your code for PEP8 compliance.
 - Importing SkyPy should only depend on having `NumPy <https://www.numpy.org>`_, `SciPy <https://www.scipy.org/>`_ and `Astropy <https://www.astropy.org/>`__ installed.
 - Code is grouped into submodules based on broad science areas e.g. `galaxies <https://skypy.readthedocs.io/en/stable/galaxies.html>`_. There is also a `utils <https://skypy.readthedocs.io/en/stable/utils/index.html>`_ submodule for general utility functions.
diff --git a/docs/install.rst b/docs/install.rst
index 986f8d9f..7203271f 100644
--- a/docs/install.rst
+++ b/docs/install.rst
@@ -40,7 +40,7 @@ can be installed directly from GitHub using a recent version of pip:
 Dependencies
 ------------
 
-SkyPy is compatble with Python versions 3.7 or later on Ubuntu, macOS and
+SkyPy is compatble with Python versions 3.8 or later on Ubuntu, macOS and
 Windows operating systems. It has the following core dependencies:
 
 - `astropy <https://www.astropy.org/>`__
diff --git a/setup.cfg b/setup.cfg
index baeb275f..0235fd84 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -14,7 +14,7 @@ github_project = skypyproject/skypy
 [options]
 zip_safe = False
 packages = find:
-python_requires = >=3.7
+python_requires = >=3.8
 setup_requires = setuptools_scm
 install_requires =
     astropy>=4
diff --git a/tox.ini b/tox.ini
index f3ced749..b753ecda 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,9 +1,9 @@
 [tox]
 envlist =
-    py{37,38,39,310,311,312}-test{,-all}{,-dev,-latest,-oldest}{,-cov}
-    py{37,38,39,310,311,312}-test-numpy{116,117,118,119,120,121,122,123,124,125,126}
-    py{37,38,39,310,311,312}-test-scipy{16,17,18,19,110,111,112,113}
-    py{37,38,39,310,311,312}-test-astropy{40,41,42,43,50,51,52,53,60,61}
+    py{38,39,310,311,312}-test{,-all}{,-dev,-latest,-oldest}{,-cov}
+    py{38,39,310,311,312}-test-numpy{116,117,118,119,120,121,122,123,124,125,126}
+    py{38,39,310,311,312}-test-scipy{16,17,18,19,110,111,112,113}
+    py{38,39,310,311,312}-test-astropy{40,41,42,43,50,51,52,53,60,61}
     build_docs
     linkcheck
     codestyle