Drop support for Python 3.7

This version has reached its end-of-life last year,
https://peps.python.org/pep-0537/#lifespan.

.github/workflows/tests.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         include:
-          - python: "3.7"
+          - python: "3.8"
             psycopg: "psycopg2"
           - python: "3.12"
             psycopg: "psycopg3"

CHANGELOG.md

@@ -18,6 +18,10 @@
 * Fix retrieval of I/O statistics on BSD systems (#393).
 * Fix spelling mistakes in the man page.
 
+### Removed
+
+* Python 3.7 is no longer supported.
+
 ### Misc
 
 * Document how to *hack* on pg\_activity in the `README`.

README.md

@@ -34,7 +34,7 @@ pg\_activity releases. Before submitting a bug report here:
 
 ## From PyPI
 
-pg\_activity can be installed using pip on Python 3.7 or later along with
+pg\_activity can be installed using pip on Python 3.8 or later along with
 psycopg:
 
     $ python3 -m pip install "pg_activity[psycopg]"

pgactivity/compat.py

@@ -1,16 +1,11 @@
 import operator
-import sys
+from importlib.metadata import version
 from typing import Any, Dict
 
 import attr
 import attr.validators
 import blessed
 
-if sys.version_info < (3, 8):
-    from importlib_metadata import version
-else:
-    from importlib.metadata import version
-
 ATTR_VERSION = tuple(int(x) for x in version("attrs").split(".", 2)[:2])
 BLESSED_VERSION = tuple(int(x) for x in version("blessed").split(".", 2)[:2])
 

pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "Command line tool for PostgreSQL server activity monitoring."
 readme = "README.md"
 license = { text = "PostgreSQL" }
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
     { name = "Julien Tachoires", email = "julmon@gmail.com" },
     { name = "Benoit Lobréau", email = "benoit.lobreau@dalibo.com" },