Bump minimal version of Python to 3.8

Author: amorison

docs/sources/install.rst

@@ -1,7 +1,7 @@
 Installation
 ============
 
-You will need Python 3.7 or higher to use StagPy. StagPy is available on
+You will need Python 3.8 or higher to use StagPy. StagPy is available on
 the Python Package Index, via ``pip``.
 
 If you don't have sufficient permissions to install or update Python, you might

pyproject.toml

@@ -22,12 +22,11 @@ classifiers = [
     "Intended Audience :: Science/Research",
     "License :: OSI Approved :: Apache Software License",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
 ]
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 dependencies = [
     "loam>=0.7.0,<0.8.0",
     "f90nml>=1.3.1",

tox.ini

@@ -1,6 +1,5 @@
 [tox]
 envlist =
-    py37
     py38
     py39
     py310
@@ -52,7 +51,6 @@ max_complexity = 15
 
 [gh]
 python =
-    3.7 = py37, mypy
     3.8 = py38, mypy
     3.9 = py39, mypy
     3.10 = py310, flake8, mypy