Drop support for EOL Python 3.7

Author: hugovk

pyproject.toml

@@ -13,7 +13,6 @@ classifiers = [
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
   "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",
@@ -28,7 +27,7 @@ authors = [
 
 # NOTE: requires-python is duplicated in __pip-runner__.py.
 # When changing this value, please change the other copy as well.
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 
 [project.urls]
 Homepage = "https://pip.pypa.io/"
@@ -150,7 +149,7 @@ ignore = [
     "B904", # Ruff enables opinionated warnings by default
     "B905", # Ruff enables opinionated warnings by default
 ]
-target-version = "py37"
+target-version = "py38"
 line-length = 88
 select = [
     "ASYNC",

src/pip/__pip-runner__.py

@@ -8,7 +8,7 @@
 
 import sys
 
-# Copied from setup.py
+# Copied from pyproject.toml
 PYTHON_REQUIRES = (3, 8)