Remove support for Python 3.7

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
         postgresql-version: [15, 14, 13, 12, 11]
 
     container:

README.rst

@@ -11,7 +11,7 @@ pg8000
 pg8000 is a pure-`Python <https://www.python.org/>`_
 `PostgreSQL <http://www.postgresql.org/>`_ driver that complies with
 `DB-API 2.0 <http://www.python.org/dev/peps/pep-0249/>`_. It is tested on Python
-versions 3.7+, on CPython and PyPy, and PostgreSQL versions 11+. pg8000's name comes
+versions 3.8+, on CPython and PyPy, and PostgreSQL versions 11+. pg8000's name comes
 from the belief that it is probably about the 8000th PostgreSQL interface for Python.
 pg8000 is distributed under the BSD 3-clause license.
 

pg8000/core.py

@@ -2,6 +2,7 @@
 import socket
 from collections import defaultdict, deque
 from hashlib import md5
+from importlib.metadata import version
 from io import IOBase, TextIOBase
 from itertools import count
 from struct import Struct
@@ -17,10 +18,6 @@
 )
 from pg8000.exceptions import DatabaseError, Error, InterfaceError
 
-try:
-    from importlib.metadata import version
-except ImportError:
-    from importlib_metadata import version
 
 ver = version("pg8000")
 

pyproject.toml

@@ -9,7 +9,7 @@ build-backend = "setuptools.build_meta"
 name = "pg8000"
 description = "PostgreSQL interface library"
 readme = "README.rst"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 keywords= ["postgresql", "dbapi"]
 license = {text = "BSD 3-Clause License"}
 classifiers = [
@@ -18,10 +18,10 @@ classifiers = [
     "License :: OSI Approved :: BSD License",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: Implementation",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
@@ -31,7 +31,6 @@ classifiers = [
 ]
 dependencies = [
     "scramp >= 1.4.3",
-    'importlib-metadata >= 1.0 ; python_version < "3.8"',
     'python-dateutil >= 2.8.2',
 ]
 dynamic = ["version"]