drop Python 3.7

.github/workflows/release.yml

@@ -18,10 +18,10 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Set up Python 3.7
+    - name: Set up Python 3.8
       uses: actions/setup-python@v3
       with:
-        python-version: '3.7'
+        python-version: '3.8'
 
     - name: Upgrade pip and nox
       run: |

.github/workflows/tests.yml

@@ -20,7 +20,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-20.04, windows-latest, macos-latest]
-        pyv: ['3.7', '3.8', '3.9', '3.10']
+        pyv: ['3.8', '3.9', '3.10']
         include:
         - os: ubuntu-latest
           pyv: 'pypy3.8'

CONTRIBUTING.rst

@@ -43,7 +43,7 @@ Request features on the `Issue Tracker`_.
 How to set up your development environment
 ------------------------------------------
 
-You need Python 3.7+ and the following tools:
+You need Python 3.8+ and the following tools:
 
 - Nox_
 

noxfile.py

@@ -9,7 +9,7 @@
 locations = "src", "tests"
 
 
-@nox.session(python=["3.7", "3.8", "3.9", "3.10", "pypy3.8", "pypy3.9"])
+@nox.session(python=["3.8", "3.9", "3.10", "pypy3.8", "pypy3.9"])
 def tests(session: nox.Session) -> None:
     session.install(".[tests]")
     session.run(

setup.cfg

@@ -11,14 +11,13 @@ authors = Iterative
 maintainer_email = [email protected]
 classifiers =
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Development Status :: 1 - Planning
 
 [options]
-python_requires = >=3.7
+python_requires = >=3.8
 zip_safe = False
 package_dir=
     =src